{ "constants": [ { "id": "CON-001", "category": "concrete", "material_or_item": "QUIKRETE Concrete Mix No. 1101, 40 lb bag", "quantity": "yield of mixed concrete per bag", "value": null, "value_text": "", "unit": "ft3", "value_si": null, "unit_si": "m3", "condition": "mixed concrete, approximate", "source": { "publisher": "QUIKRETE", "title": "Concrete Mix No. 1101 data sheet", "url": "https://www.quikrete.com/pdfs/data_sheet-concrete%20mix%201101.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/concrete-calculator/", "https://takeoffmetric.com/concrete/footing-calculator/", "https://takeoffmetric.com/concrete/concrete-cost-calculator/", "https://takeoffmetric.com/decks-fences/fence-calculator/" ], "engine_file": [ "site/src/data/reference/concrete.ts", "site/src/engine/formulas/concrete/footing.ts", "site/src/engine/formulas/concrete/concrete-cost.ts", "site/src/data/reference/fence.ts" ], "engine_symbol": [ "BAG_YIELDS[\"40\"].cuft", "BAG_CUFT[\"40\"]", "BAG_CUFT[\"40\"]", "FENCE_BAG_YIELD_CUFT[\"40\"]" ], "notes": "One product line; other brands publish their own yields.", "withheld": true, "withheld_hosts": [ "quikrete.com" ] }, { "id": "CON-002", "category": "concrete", "material_or_item": "QUIKRETE Concrete Mix No. 1101, 50 lb bag", "quantity": "yield of mixed concrete per bag", "value": null, "value_text": "", "unit": "ft3", "value_si": null, "unit_si": "m3", "condition": "mixed concrete, approximate", "source": { "publisher": "QUIKRETE", "title": "Concrete Mix No. 1101 data sheet", "url": "https://www.quikrete.com/pdfs/data_sheet-concrete%20mix%201101.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/concrete-calculator/", "https://takeoffmetric.com/concrete/footing-calculator/", "https://takeoffmetric.com/concrete/concrete-cost-calculator/", "https://takeoffmetric.com/decks-fences/fence-calculator/" ], "engine_file": [ "site/src/data/reference/concrete.ts", "site/src/engine/formulas/concrete/footing.ts", "site/src/engine/formulas/concrete/concrete-cost.ts", "site/src/data/reference/fence.ts" ], "engine_symbol": [ "BAG_YIELDS[\"50\"].cuft", "BAG_CUFT[\"50\"]", "BAG_CUFT[\"50\"]", "FENCE_BAG_YIELD_CUFT[\"50\"]" ], "notes": "One product line; other brands publish their own yields.", "withheld": true, "withheld_hosts": [ "quikrete.com" ] }, { "id": "CON-003", "category": "concrete", "material_or_item": "QUIKRETE Concrete Mix No. 1101, 60 lb bag", "quantity": "yield of mixed concrete per bag", "value": null, "value_text": "", "unit": "ft3", "value_si": null, "unit_si": "m3", "condition": "mixed concrete, approximate", "source": { "publisher": "QUIKRETE", "title": "Concrete Mix No. 1101 data sheet", "url": "https://www.quikrete.com/pdfs/data_sheet-concrete%20mix%201101.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/concrete-calculator/", "https://takeoffmetric.com/concrete/footing-calculator/", "https://takeoffmetric.com/concrete/concrete-cost-calculator/", "https://takeoffmetric.com/decks-fences/fence-calculator/", "https://takeoffmetric.com/decks-fences/deck-calculator/" ], "engine_file": [ "site/src/data/reference/concrete.ts", "site/src/engine/formulas/concrete/footing.ts", "site/src/engine/formulas/concrete/concrete-cost.ts", "site/src/data/reference/fence.ts", "site/src/data/reference/deck.ts" ], "engine_symbol": [ "BAG_YIELDS[\"60\"].cuft", "BAG_CUFT[\"60\"]", "BAG_CUFT[\"60\"]", "FENCE_BAG_YIELD_CUFT[\"60\"]", "BAG_YIELD_CUFT[\"1101-60\"]" ], "notes": "One product line; other brands publish their own yields.", "withheld": true, "withheld_hosts": [ "quikrete.com" ] }, { "id": "CON-004", "category": "concrete", "material_or_item": "QUIKRETE Concrete Mix No. 1101, 80 lb bag", "quantity": "yield of mixed concrete per bag", "value": null, "value_text": "", "unit": "ft3", "value_si": null, "unit_si": "m3", "condition": "mixed concrete, approximate", "source": { "publisher": "QUIKRETE", "title": "Concrete Mix No. 1101 data sheet", "url": "https://www.quikrete.com/pdfs/data_sheet-concrete%20mix%201101.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/concrete-calculator/", "https://takeoffmetric.com/concrete/footing-calculator/", "https://takeoffmetric.com/concrete/concrete-cost-calculator/", "https://takeoffmetric.com/decks-fences/fence-calculator/", "https://takeoffmetric.com/decks-fences/deck-calculator/" ], "engine_file": [ "site/src/data/reference/concrete.ts", "site/src/engine/formulas/concrete/footing.ts", "site/src/engine/formulas/concrete/concrete-cost.ts", "site/src/data/reference/fence.ts", "site/src/data/reference/deck.ts" ], "engine_symbol": [ "BAG_YIELDS[\"80\"].cuft", "BAG_CUFT[\"80\"]", "BAG_CUFT[\"80\"]", "FENCE_BAG_YIELD_CUFT[\"80\"]", "BAG_YIELD_CUFT[\"1101-80\"]" ], "notes": "One product line; other brands publish their own yields.", "withheld": true, "withheld_hosts": [ "quikrete.com" ] }, { "id": "CON-005", "category": "concrete", "material_or_item": "QUIKRETE Concrete Mix No. 1101, 90 lb bag", "quantity": "yield of mixed concrete per bag", "value": null, "value_text": "", "unit": "ft3", "value_si": null, "unit_si": "m3", "condition": "mixed concrete, approximate", "source": { "publisher": "QUIKRETE", "title": "Concrete Mix No. 1101 data sheet", "url": "https://www.quikrete.com/pdfs/data_sheet-concrete%20mix%201101.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/concrete-calculator/", "https://takeoffmetric.com/concrete/footing-calculator/", "https://takeoffmetric.com/concrete/concrete-cost-calculator/", "https://takeoffmetric.com/decks-fences/fence-calculator/" ], "engine_file": [ "site/src/data/reference/concrete.ts", "site/src/engine/formulas/concrete/footing.ts", "site/src/engine/formulas/concrete/concrete-cost.ts", "site/src/data/reference/fence.ts" ], "engine_symbol": [ "BAG_YIELDS[\"90\"].cuft", "BAG_CUFT[\"90\"]", "BAG_CUFT[\"90\"]", "FENCE_BAG_YIELD_CUFT[\"90\"]" ], "notes": "One product line; other brands publish their own yields.", "withheld": true, "withheld_hosts": [ "quikrete.com" ] }, { "id": "CON-006", "category": "concrete", "material_or_item": "QUIKRETE Fast-Setting Concrete Mix No. 1004, 50 lb bag", "quantity": "yield of mixed concrete per bag", "value": null, "value_text": "", "unit": "ft3", "value_si": null, "unit_si": "m3", "condition": "mixed concrete, approximate", "source": { "publisher": "QUIKRETE", "title": "Fast-Setting Concrete Mix No. 1004 data sheet", "url": "https://www.quikrete.com/pdfs/data_sheet-fast%20setting%20concrete%20mix%201004-50.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/decks-fences/deck-calculator/" ], "engine_file": [ "site/src/data/reference/deck.ts" ], "engine_symbol": [ "BAG_YIELD_CUFT[\"1004-50\"]" ], "notes": "One product.", "withheld": true, "withheld_hosts": [ "quikrete.com" ] }, { "id": "CON-007", "category": "concrete", "material_or_item": "Normal-weight concrete", "quantity": "unit weight, low end of range", "value": 140, "value_text": "140", "unit": "lb/ft3", "value_si": 2243, "unit_si": "kg/m3", "condition": "hardened", "source": { "publisher": "Federal Highway Administration (FHWA)", "title": "FHWA-HRT-05-057, Appendix C", "url": "https://www.fhwa.dot.gov/publications/research/infrastructure/bridge/05057/appc.cfm", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/concrete-calculator/" ], "engine_file": [ "site/src/data/reference/concrete.ts" ], "engine_symbol": [ "CONCRETE_LB_PER_CUFT_MIN" ], "notes": "Ledger status PARTIAL: the source supports the 140-155 range only; the range is what is listed here. Report on high-strength concrete for highway bridges. The calculator's 150 lb/ft3 default is its own editable assumption and is not listed.", "withheld": false, "withheld_hosts": [] }, { "id": "CON-008", "category": "concrete", "material_or_item": "Normal-weight concrete", "quantity": "unit weight, high end of range", "value": 155, "value_text": "155", "unit": "lb/ft3", "value_si": 2483, "unit_si": "kg/m3", "condition": "hardened", "source": { "publisher": "Federal Highway Administration (FHWA)", "title": "FHWA-HRT-05-057, Appendix C", "url": "https://www.fhwa.dot.gov/publications/research/infrastructure/bridge/05057/appc.cfm", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/concrete-calculator/" ], "engine_file": [ "site/src/data/reference/concrete.ts" ], "engine_symbol": [ "CONCRETE_LB_PER_CUFT_MAX" ], "notes": "Same PARTIAL note as the low end: range only.", "withheld": false, "withheld_hosts": [] }, { "id": "CON-009", "category": "concrete", "material_or_item": "Slab on grade, control joints", "quantity": "maximum joint spacing, lower multiplier", "value": 24, "value_text": "24", "unit": "x slab thickness", "value_si": 24, "unit_si": "x slab thickness", "condition": "", "source": { "publisher": "National Ready Mixed Concrete Association (NRMCA)", "title": "CIP 6, Joints in Concrete Slabs on Grade", "url": "https://www.nrmca.org/wp-content/uploads/2021/01/06pr.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/concrete-calculator/" ], "engine_file": [ "site/src/data/reference/concrete.ts" ], "engine_symbol": [ "JOINT_SPACING_MIN_X" ], "notes": "Joint spacing = 24 to 36 times slab thickness.", "withheld": false, "withheld_hosts": [] }, { "id": "CON-010", "category": "concrete", "material_or_item": "Slab on grade, control joints", "quantity": "maximum joint spacing, upper multiplier", "value": 36, "value_text": "36", "unit": "x slab thickness", "value_si": 36, "unit_si": "x slab thickness", "condition": "", "source": { "publisher": "National Ready Mixed Concrete Association (NRMCA)", "title": "CIP 6, Joints in Concrete Slabs on Grade", "url": "https://www.nrmca.org/wp-content/uploads/2021/01/06pr.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/concrete-calculator/" ], "engine_file": [ "site/src/data/reference/concrete.ts" ], "engine_symbol": [ "JOINT_SPACING_MAX_X" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "CON-014", "category": "concrete", "material_or_item": "Gravel base under slab / gravel, dry, average gradation", "quantity": "loose-to-compacted volume ratio", "value": 1.31, "value_text": "1.31", "unit": "ratio", "value_si": 1.31, "unit_si": "ratio", "condition": "loose to embankment (compacted)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/concrete-calculator/", "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/concrete.ts", "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "BASE_FHWA_RATIO", "R_GRAVEL" ], "notes": "Arithmetic from Exhibit 5.1 A: embankment 3,570 / loose 2,730 lb/yd3. Highway embankment, not a plate-compacted layer; FHWA gives the exhibit for estimating before project-specific data.", "withheld": false, "withheld_hosts": [] }, { "id": "REB-001", "category": "rebar", "material_or_item": "Reinforcing bar #3", "quantity": "nominal diameter", "value": 0.375, "value_text": "0.375", "unit": "in", "value_si": 9.525, "unit_si": "mm", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_DIAMETER_IN[\"3\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-002", "category": "rebar", "material_or_item": "Reinforcing bar #3", "quantity": "nominal weight per foot", "value": 0.376, "value_text": "0.376", "unit": "lb/ft", "value_si": 0.5595, "unit_si": "kg/m", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_WEIGHT_LB_FT[\"3\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-003", "category": "rebar", "material_or_item": "Reinforcing bar #4", "quantity": "nominal diameter", "value": 0.5, "value_text": "0.500", "unit": "in", "value_si": 12.7, "unit_si": "mm", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_DIAMETER_IN[\"4\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-004", "category": "rebar", "material_or_item": "Reinforcing bar #4", "quantity": "nominal weight per foot", "value": 0.668, "value_text": "0.668", "unit": "lb/ft", "value_si": 0.9941, "unit_si": "kg/m", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_WEIGHT_LB_FT[\"4\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-005", "category": "rebar", "material_or_item": "Reinforcing bar #5", "quantity": "nominal diameter", "value": 0.625, "value_text": "0.625", "unit": "in", "value_si": 15.88, "unit_si": "mm", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_DIAMETER_IN[\"5\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-006", "category": "rebar", "material_or_item": "Reinforcing bar #5", "quantity": "nominal weight per foot", "value": 1.043, "value_text": "1.043", "unit": "lb/ft", "value_si": 1.552, "unit_si": "kg/m", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_WEIGHT_LB_FT[\"5\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-007", "category": "rebar", "material_or_item": "Reinforcing bar #6", "quantity": "nominal diameter", "value": 0.75, "value_text": "0.750", "unit": "in", "value_si": 19.05, "unit_si": "mm", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_DIAMETER_IN[\"6\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-008", "category": "rebar", "material_or_item": "Reinforcing bar #6", "quantity": "nominal weight per foot", "value": 1.502, "value_text": "1.502", "unit": "lb/ft", "value_si": 2.235, "unit_si": "kg/m", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_WEIGHT_LB_FT[\"6\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-009", "category": "rebar", "material_or_item": "Reinforcing bar #7", "quantity": "nominal diameter", "value": 0.875, "value_text": "0.875", "unit": "in", "value_si": 22.22, "unit_si": "mm", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_DIAMETER_IN[\"7\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-010", "category": "rebar", "material_or_item": "Reinforcing bar #7", "quantity": "nominal weight per foot", "value": 2.044, "value_text": "2.044", "unit": "lb/ft", "value_si": 3.042, "unit_si": "kg/m", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_WEIGHT_LB_FT[\"7\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-011", "category": "rebar", "material_or_item": "Reinforcing bar #8", "quantity": "nominal diameter", "value": 1, "value_text": "1.000", "unit": "in", "value_si": 25.4, "unit_si": "mm", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_DIAMETER_IN[\"8\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-012", "category": "rebar", "material_or_item": "Reinforcing bar #8", "quantity": "nominal weight per foot", "value": 2.67, "value_text": "2.670", "unit": "lb/ft", "value_si": 3.973, "unit_si": "kg/m", "condition": "", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "BAR_WEIGHT_LB_FT[\"8\"]" ], "notes": "State DOT specification (Texas).", "withheld": false, "withheld_hosts": [] }, { "id": "REB-013", "category": "rebar", "material_or_item": "Reinforcing bar, mill stock length", "quantity": "stock length option 1", "value": null, "value_text": "", "unit": "ft", "value_si": null, "unit_si": "m", "condition": "one producer's mill lengths", "source": { "publisher": "Nucor", "title": "Steel Rebar (product page, FAQ)", "url": "https://nucor.com/products/rebar/", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "STOCK_LENGTH_FT[0]" ], "notes": "Mill lengths of one producer; retail stock lengths may differ.", "withheld": true, "withheld_hosts": [ "nucor.com" ] }, { "id": "REB-014", "category": "rebar", "material_or_item": "Reinforcing bar, mill stock length", "quantity": "stock length option 2", "value": null, "value_text": "", "unit": "ft", "value_si": null, "unit_si": "m", "condition": "one producer's mill lengths", "source": { "publisher": "Nucor", "title": "Steel Rebar (product page, FAQ)", "url": "https://nucor.com/products/rebar/", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "STOCK_LENGTH_FT[1]" ], "notes": "Mill lengths of one producer; retail stock lengths may differ.", "withheld": true, "withheld_hosts": [ "nucor.com" ] }, { "id": "REB-015", "category": "rebar", "material_or_item": "Reinforcing bar, mill stock length", "quantity": "stock length option 3", "value": null, "value_text": "", "unit": "ft", "value_si": null, "unit_si": "m", "condition": "one producer's mill lengths", "source": { "publisher": "Nucor", "title": "Steel Rebar (product page, FAQ)", "url": "https://nucor.com/products/rebar/", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/concrete/rebar-calculator/" ], "engine_file": [ "site/src/data/reference/rebar.ts" ], "engine_symbol": [ "STOCK_LENGTH_FT[2]" ], "notes": "Mill lengths of one producer; retail stock lengths may differ.", "withheld": true, "withheld_hosts": [ "nucor.com" ] }, { "id": "AGG-001", "category": "aggregates", "material_or_item": "Gravel, dry, 1/4-2 in", "quantity": "mass density, loose dry", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose, dry", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"gravel-14-2\"].dry" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-002", "category": "aggregates", "material_or_item": "Gravel, dry, 1/4-2 in", "quantity": "mass density, bank", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "bank (in place, undisturbed)", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"gravel-14-2\"].bank" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column. Bank = in its natural deposit; used by the calculator only as a stand-in where stated on the page.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-003", "category": "aggregates", "material_or_item": "Gravel, wet, 1/4-2 in", "quantity": "mass density, loose wet", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose, wet", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"gravel-14-2\"].wet" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-004", "category": "aggregates", "material_or_item": "Gravel, dry (unsized)", "quantity": "mass density, loose dry", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose, dry", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"gravel-dry\"].dry" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-005", "category": "aggregates", "material_or_item": "Gravel, dry (unsized)", "quantity": "mass density, bank", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "bank (in place, undisturbed)", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"gravel-dry\"].bank" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column. Bank = in its natural deposit; used by the calculator only as a stand-in where stated on the page.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-006", "category": "aggregates", "material_or_item": "Gravel, pit run", "quantity": "mass density, loose", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"gravel-pitrun\"].dry" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-007", "category": "aggregates", "material_or_item": "Gravel, pit run", "quantity": "mass density, bank", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "bank (in place, undisturbed)", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"gravel-pitrun\"].bank" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column. Bank = in its natural deposit; used by the calculator only as a stand-in where stated on the page.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-008", "category": "aggregates", "material_or_item": "Crushed stone", "quantity": "mass density, loose", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/", "https://takeoffmetric.com/masonry/paver-base-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts", "site/src/data/reference/paver-base.ts" ], "engine_symbol": [ "AGGREGATES[\"crushed-stone\"].dry", "CRUSHED_STONE_LB_CUYD" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column. The same table's crushed-stone bank figure describes solid rock before blasting and is deliberately not used.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-009", "category": "aggregates", "material_or_item": "Sand and gravel, dry", "quantity": "mass density, loose dry", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose, dry", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"sand-gravel\"].dry" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-010", "category": "aggregates", "material_or_item": "Sand and gravel, dry", "quantity": "mass density, bank", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "bank (in place, undisturbed)", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"sand-gravel\"].bank" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column. Bank = in its natural deposit; used by the calculator only as a stand-in where stated on the page.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-011", "category": "aggregates", "material_or_item": "Sand and gravel, wet", "quantity": "mass density, loose wet", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose, wet", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"sand-gravel\"].wet" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-012", "category": "aggregates", "material_or_item": "Sand, dry", "quantity": "mass density, loose dry", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose, dry", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/", "https://takeoffmetric.com/earthwork/sand-calculator/", "https://takeoffmetric.com/masonry/paver-base-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts", "site/src/data/reference/sand.ts", "site/src/data/reference/paver-base.ts" ], "engine_symbol": [ "AGGREGATES[\"sand\"].dry", "SAND_ROWS[\"dry\"].loose", "SAND_DRY_LB_CUYD" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-013", "category": "aggregates", "material_or_item": "Sand, dry", "quantity": "mass density, bank", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "bank (in place, undisturbed)", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/", "https://takeoffmetric.com/earthwork/sand-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts", "site/src/data/reference/sand.ts" ], "engine_symbol": [ "AGGREGATES[\"sand\"].bank", "SAND_ROWS[\"dry\"].bank" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column. Bank = in its natural deposit; used by the calculator only as a stand-in where stated on the page.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-014", "category": "aggregates", "material_or_item": "Sand, damp", "quantity": "mass density, loose damp", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose, damp", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/", "https://takeoffmetric.com/earthwork/sand-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts", "site/src/data/reference/sand.ts" ], "engine_symbol": [ "AGGREGATES[\"sand\"].damp", "SAND_ROWS[\"damp\"].loose" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-015", "category": "aggregates", "material_or_item": "Sand, damp", "quantity": "mass density, bank", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "bank (in place, undisturbed)", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/sand-calculator/" ], "engine_file": [ "site/src/data/reference/sand.ts" ], "engine_symbol": [ "SAND_ROWS[\"damp\"].bank" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column. Bank = in its natural deposit; used by the calculator only as a stand-in where stated on the page.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-016", "category": "aggregates", "material_or_item": "Sand, wet", "quantity": "mass density, loose wet", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose, wet", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/", "https://takeoffmetric.com/earthwork/sand-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts", "site/src/data/reference/sand.ts" ], "engine_symbol": [ "AGGREGATES[\"sand\"].wet", "SAND_ROWS[\"wet\"].loose" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-017", "category": "aggregates", "material_or_item": "Sand, wet", "quantity": "mass density, bank", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "bank (in place, undisturbed)", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/sand-calculator/" ], "engine_file": [ "site/src/data/reference/sand.ts" ], "engine_symbol": [ "SAND_ROWS[\"wet\"].bank" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column. Bank = in its natural deposit; used by the calculator only as a stand-in where stated on the page.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-018", "category": "aggregates", "material_or_item": "Top soil", "quantity": "mass density, loose", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/", "https://takeoffmetric.com/earthwork/topsoil-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts", "site/src/data/reference/topsoil.ts" ], "engine_symbol": [ "AGGREGATES[\"topsoil\"].dry", "TOPSOIL_LOOSE_LB_CUYD_CAT" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-019", "category": "aggregates", "material_or_item": "Top soil", "quantity": "mass density, bank", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "bank (in place, undisturbed)", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"topsoil\"].bank" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column. Bank = in its natural deposit; used by the calculator only as a stand-in where stated on the page.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-020", "category": "aggregates", "material_or_item": "Earth, loam", "quantity": "mass density, loose", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "loose", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"earth-loam\"].dry" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-021", "category": "aggregates", "material_or_item": "Earth, loam", "quantity": "mass density, bank", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "bank (in place, undisturbed)", "source": { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"earth-loam\"].bank" ], "notes": "Manufacturer engineering reference table. Caterpillar also prints its own kg/m3 column. Bank = in its natural deposit; used by the calculator only as a stand-in where stated on the page.", "withheld": true, "withheld_hosts": [ "cat.com" ] }, { "id": "AGG-022", "category": "aggregates", "material_or_item": "River rock", "quantity": "mass density as delivered", "value": 2800, "value_text": "2800", "unit": "lb/yd3", "value_si": 1661, "unit_si": "kg/m3", "condition": "as delivered (supplier chart)", "source": { "publisher": "Marenakos Rock Center", "title": "Conversion and coverages", "url": "https://marenakos.com/conversion-and-coverages/", "type": "supplier" }, "date_opened": "2026-09-22", "date_opened_unix": 1790035200, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"river-rock\"].damp" ], "notes": "One supplier's chart; weights vary with moisture. Ledger PARTIAL upgraded to VERIFIED at the 2026-09-22 re-check.", "withheld": false, "withheld_hosts": [] }, { "id": "AGG-023", "category": "aggregates", "material_or_item": "Crushed granite", "quantity": "mass density as delivered", "value": 2500, "value_text": "2500", "unit": "lb/yd3", "value_si": 1483, "unit_si": "kg/m3", "condition": "as delivered (supplier chart)", "source": { "publisher": "Marenakos Rock Center", "title": "Conversion and coverages", "url": "https://marenakos.com/conversion-and-coverages/", "type": "supplier" }, "date_opened": "2026-09-22", "date_opened_unix": 1790035200, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"crushed-granite\"].damp" ], "notes": "One supplier's chart; weights vary with moisture. Ledger PARTIAL upgraded to VERIFIED at the 2026-09-22 re-check.", "withheld": false, "withheld_hosts": [] }, { "id": "AGG-024", "category": "aggregates", "material_or_item": "Sand / gravel / decomposed granite / rock / river cobble", "quantity": "mass density as delivered", "value": null, "value_text": "", "unit": "lb/yd3", "value_si": null, "unit_si": "kg/m3", "condition": "as delivered (supplier chart)", "source": { "publisher": "North Bay Materials", "title": "Cubic Yard to Tons material calculator and density chart", "url": "https://www.northbaymaterials.com/landscape-material-density-calculator", "type": "supplier" }, "date_opened": "2026-09-22", "date_opened_unix": 1790035200, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "AGGREGATES[\"landscape-mix\"].damp" ], "notes": "Supplier chart; the supplier notes that weights vary with moisture.", "withheld": true, "withheld_hosts": [ "northbaymaterials.com" ] }, { "id": "AGG-025", "category": "aggregates", "material_or_item": "Sand, dry", "quantity": "loose-to-compacted volume ratio", "value": 1.25, "value_text": "1.25", "unit": "ratio", "value_si": 1.25, "unit_si": "ratio", "condition": "loose to embankment (compacted)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/sand-calculator/", "https://takeoffmetric.com/earthwork/gravel-calculator/" ], "engine_file": [ "site/src/data/reference/sand.ts", "site/src/data/reference/aggregates.ts" ], "engine_symbol": [ "FHWA_SAND_RATIO", "AGGREGATES[\"sand\"].r" ], "notes": "Arithmetic from Exhibit 5.1 A: embankment 3,240 / loose 2,590 lb/yd3. Highway embankment, not a plate-compacted layer.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-001", "category": "earthwork", "material_or_item": "Earth, loam, dry", "quantity": "mass density, in situ", "value": 3030, "value_text": "3030", "unit": "lb/yd3", "value_si": 1798, "unit_si": "kg/m3", "condition": "in situ (bank)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-dry\"].inSitu", "SWELL_ROWS[\"loam-dry\"].inSitu" ], "notes": "FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-002", "category": "earthwork", "material_or_item": "Earth, loam, dry", "quantity": "mass density, loose", "value": 2070, "value_text": "2070", "unit": "lb/yd3", "value_si": 1228, "unit_si": "kg/m3", "condition": "loose", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-dry\"].loose", "SWELL_ROWS[\"loam-dry\"].loose" ], "notes": "FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-003", "category": "earthwork", "material_or_item": "Earth, loam, dry", "quantity": "loose-to-compacted volume ratio", "value": 1.7, "value_text": "1.70", "unit": "ratio", "value_si": 1.7, "unit_si": "ratio", "condition": "loose to embankment (compacted)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-dry\"].looseToCompacted" ], "notes": "Arithmetic: embankment / loose, rounded to 2 decimals. Highway embankment compaction; the fill-dirt calculator applies it only when the user asks for a compacted volume. FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-004", "category": "earthwork", "material_or_item": "Earth, loam, dry", "quantity": "in-situ-to-loose volume ratio (swell)", "value": 1.46, "value_text": "1.46", "unit": "ratio", "value_si": 1.46, "unit_si": "ratio", "condition": "in situ to loose", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-dry\"].inSituToLoose", "SWELL_ROWS[\"loam-dry\"].factor" ], "notes": "Arithmetic: in situ / loose, rounded to 2 decimals. FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-005", "category": "earthwork", "material_or_item": "Earth, loam, damp", "quantity": "mass density, in situ", "value": 3370, "value_text": "3370", "unit": "lb/yd3", "value_si": 1999, "unit_si": "kg/m3", "condition": "in situ (bank)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-damp\"].inSitu", "SWELL_ROWS[\"loam-damp\"].inSitu" ], "notes": "FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-006", "category": "earthwork", "material_or_item": "Earth, loam, damp", "quantity": "mass density, loose", "value": 2360, "value_text": "2360", "unit": "lb/yd3", "value_si": 1400, "unit_si": "kg/m3", "condition": "loose", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-damp\"].loose", "SWELL_ROWS[\"loam-damp\"].loose" ], "notes": "FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-007", "category": "earthwork", "material_or_item": "Earth, loam, damp", "quantity": "loose-to-compacted volume ratio", "value": 1.49, "value_text": "1.49", "unit": "ratio", "value_si": 1.49, "unit_si": "ratio", "condition": "loose to embankment (compacted)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-damp\"].looseToCompacted" ], "notes": "Arithmetic: embankment / loose, rounded to 2 decimals. Highway embankment compaction; the fill-dirt calculator applies it only when the user asks for a compacted volume. FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-008", "category": "earthwork", "material_or_item": "Earth, loam, damp", "quantity": "in-situ-to-loose volume ratio (swell)", "value": 1.43, "value_text": "1.43", "unit": "ratio", "value_si": 1.43, "unit_si": "ratio", "condition": "in situ to loose", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-damp\"].inSituToLoose", "SWELL_ROWS[\"loam-damp\"].factor" ], "notes": "Arithmetic: in situ / loose, rounded to 2 decimals. FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-009", "category": "earthwork", "material_or_item": "Earth, loam, wet", "quantity": "mass density, in situ", "value": 2940, "value_text": "2940", "unit": "lb/yd3", "value_si": 1744, "unit_si": "kg/m3", "condition": "in situ (bank)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-wet\"].inSitu", "SWELL_ROWS[\"loam-wet\"].inSitu" ], "notes": "FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-010", "category": "earthwork", "material_or_item": "Earth, loam, wet", "quantity": "mass density, loose", "value": 2940, "value_text": "2940", "unit": "lb/yd3", "value_si": 1744, "unit_si": "kg/m3", "condition": "loose", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-wet\"].loose", "SWELL_ROWS[\"loam-wet\"].loose" ], "notes": "FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-011", "category": "earthwork", "material_or_item": "Earth, loam, wet", "quantity": "loose-to-compacted volume ratio", "value": 1.2, "value_text": "1.20", "unit": "ratio", "value_si": 1.2, "unit_si": "ratio", "condition": "loose to embankment (compacted)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-wet\"].looseToCompacted" ], "notes": "Arithmetic: embankment / loose, rounded to 2 decimals. Highway embankment compaction; the fill-dirt calculator applies it only when the user asks for a compacted volume. FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-012", "category": "earthwork", "material_or_item": "Earth, loam, wet", "quantity": "in-situ-to-loose volume ratio (swell)", "value": 1, "value_text": "1.00", "unit": "ratio", "value_si": 1, "unit_si": "ratio", "condition": "in situ to loose", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-wet\"].inSituToLoose", "SWELL_ROWS[\"loam-wet\"].factor" ], "notes": "Arithmetic: in situ / loose, rounded to 2 decimals. FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-013", "category": "earthwork", "material_or_item": "Topsoil", "quantity": "mass density, in situ", "value": 2430, "value_text": "2430", "unit": "lb/yd3", "value_si": 1442, "unit_si": "kg/m3", "condition": "in situ (bank)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"topsoil\"].inSitu", "SWELL_ROWS[\"topsoil\"].inSitu" ], "notes": "FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-014", "category": "earthwork", "material_or_item": "Topsoil", "quantity": "mass density, loose", "value": 1620, "value_text": "1620", "unit": "lb/yd3", "value_si": 961.1, "unit_si": "kg/m3", "condition": "loose", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/", "https://takeoffmetric.com/earthwork/topsoil-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts", "site/src/data/reference/topsoil.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"topsoil\"].loose", "SWELL_ROWS[\"topsoil\"].loose", "TOPSOIL_LOOSE_LB_CUYD" ], "notes": "FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-015", "category": "earthwork", "material_or_item": "Topsoil", "quantity": "loose-to-compacted volume ratio", "value": 2.02, "value_text": "2.02", "unit": "ratio", "value_si": 2.02, "unit_si": "ratio", "condition": "loose to embankment (compacted)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"topsoil\"].looseToCompacted" ], "notes": "Arithmetic: embankment / loose, rounded to 2 decimals. Highway embankment compaction; the fill-dirt calculator applies it only when the user asks for a compacted volume. FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-016", "category": "earthwork", "material_or_item": "Topsoil", "quantity": "in-situ-to-loose volume ratio (swell)", "value": 1.5, "value_text": "1.50", "unit": "ratio", "value_si": 1.5, "unit_si": "ratio", "condition": "in situ to loose", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/", "https://takeoffmetric.com/measure/cubic-yard-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/cubic-yard.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"topsoil\"].inSituToLoose", "SWELL_ROWS[\"topsoil\"].factor" ], "notes": "Arithmetic: in situ / loose, rounded to 2 decimals. FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-017", "category": "earthwork", "material_or_item": "Earth, loam (dry, damp or wet)", "quantity": "mass density, embankment (compacted)", "value": 3520, "value_text": "3520", "unit": "lb/yd3", "value_si": 2088, "unit_si": "kg/m3", "condition": "embankment (compacted highway fill)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/fill-dirt.ts", "site/src/data/reference/fill-dirt.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"loam-dry\"].embankment", "FILL_DIRT_ROWS[\"loam-damp\"].embankment", "FILL_DIRT_ROWS[\"loam-wet\"].embankment" ], "notes": "The exhibit prints one embankment value for the three loam rows. FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "EW-018", "category": "earthwork", "material_or_item": "Topsoil", "quantity": "mass density, embankment (compacted)", "value": 3280, "value_text": "3280", "unit": "lb/yd3", "value_si": 1946, "unit_si": "kg/m3", "condition": "embankment (compacted highway fill)", "source": { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/fill-dirt-calculator/" ], "engine_file": [ "site/src/data/reference/fill-dirt.ts" ], "engine_symbol": [ "FILL_DIRT_ROWS[\"topsoil\"].embankment" ], "notes": "FHWA Exhibit 5.1 A; FHWA gives these values for estimating before project-specific geotechnical data.", "withheld": false, "withheld_hosts": [] }, { "id": "LND-001", "category": "landscaping", "material_or_item": "Topsoil for a new lawn from seed", "quantity": "root-zone depth to reach", "value": 4, "value_text": "4", "unit": "in", "value_si": 101.6, "unit_si": "mm", "condition": "total root-zone depth, not a layer added on top", "source": { "publisher": "Michigan State University Extension", "title": "E2910, Establishing a new lawn using seed", "url": "https://www.canr.msu.edu/resources/establishing_a_new_lawn_using_seed_e2910", "type": "other" }, "date_opened": "2026-09-22", "date_opened_unix": 1790035200, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/topsoil-calculator/" ], "engine_file": [ "site/src/data/reference/topsoil.ts" ], "engine_symbol": [ "TOPSOIL_JOBS[\"new-lawn\"].depthIn" ], "notes": "The same source has the soil tilled 4 to 6 in deep.", "withheld": false, "withheld_hosts": [] }, { "id": "LND-002", "category": "landscaping", "material_or_item": "Topsoil over a poor soil before seeding", "quantity": "added layer, up to", "value": 3, "value_text": "3", "unit": "in", "value_si": 76.2, "unit_si": "mm", "condition": "layer added on top", "source": { "publisher": "Clemson University Home & Garden Information Center", "title": "Lawn Establishment", "url": "https://hgic.clemson.edu/factsheet/lawn-establishment/", "type": "other" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/topsoil-calculator/" ], "engine_file": [ "site/src/data/reference/topsoil.ts" ], "engine_symbol": [ "TOPSOIL_JOBS[\"bed-amend\"].depthIn" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "LND-003", "category": "landscaping", "material_or_item": "Top-dressing an established lawn", "quantity": "maximum depth per application", "value": 0.5, "value_text": "0.5", "unit": "in", "value_si": 12.7, "unit_si": "mm", "condition": "per application", "source": { "publisher": "Clemson University Home & Garden Information Center", "title": "Topdressing a Home Lawn", "url": "https://hgic.clemson.edu/factsheet/topdressing-a-home-lawn/", "type": "other" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/topsoil-calculator/" ], "engine_file": [ "site/src/data/reference/topsoil.ts" ], "engine_symbol": [ "TOPSOIL_JOBS[\"topdress\"].depthIn" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "LND-004", "category": "landscaping", "material_or_item": "Compost over existing soil (raised bed on soil)", "quantity": "added layer, low end", "value": 2, "value_text": "2", "unit": "in", "value_si": 50.8, "unit_si": "mm", "condition": "mixed into the top 4 in", "source": { "publisher": "University of Maryland Extension", "title": "Soil to fill raised beds", "url": "https://extension.umd.edu/resource/soil-fill-raised-beds", "type": "other" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/topsoil-calculator/" ], "engine_file": [ "site/src/data/reference/topsoil.ts" ], "engine_symbol": [ "TOPSOIL_JOBS[\"bed-amend\"].low" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "LND-005", "category": "landscaping", "material_or_item": "Compost over existing soil (raised bed on soil)", "quantity": "added layer, high end", "value": 4, "value_text": "4", "unit": "in", "value_si": 101.6, "unit_si": "mm", "condition": "mixed into the top 4 in", "source": { "publisher": "University of Maryland Extension", "title": "Soil to fill raised beds", "url": "https://extension.umd.edu/resource/soil-fill-raised-beds", "type": "other" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/topsoil-calculator/" ], "engine_file": [ "site/src/data/reference/topsoil.ts" ], "engine_symbol": [ "TOPSOIL_JOBS[\"bed-amend\"].high" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "LND-006", "category": "landscaping", "material_or_item": "Raised bed on a hard surface", "quantity": "minimum fill depth (leafy greens, beans, cucumbers)", "value": 8, "value_text": "8", "unit": "in", "value_si": 203.2, "unit_si": "mm", "condition": "bed over a hard surface", "source": { "publisher": "University of Maryland Extension", "title": "Soil to fill raised beds", "url": "https://extension.umd.edu/resource/soil-fill-raised-beds", "type": "other" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/topsoil-calculator/" ], "engine_file": [ "site/src/data/reference/topsoil.ts" ], "engine_symbol": [ "TOPSOIL_JOBS[\"raised-bed\"].depthIn" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "LND-007", "category": "landscaping", "material_or_item": "Raised bed on a hard surface", "quantity": "fill depth, upper end (pepper, tomato, squash)", "value": 24, "value_text": "24", "unit": "in", "value_si": 609.6, "unit_si": "mm", "condition": "bed over a hard surface", "source": { "publisher": "University of Maryland Extension", "title": "Soil to fill raised beds", "url": "https://extension.umd.edu/resource/soil-fill-raised-beds", "type": "other" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/topsoil-calculator/" ], "engine_file": [ "site/src/data/reference/topsoil.ts" ], "engine_symbol": [ "TOPSOIL_JOBS[\"raised-bed\"].high" ], "notes": "The same source gives 12 to 24 in for these crops.", "withheld": false, "withheld_hosts": [] }, { "id": "LND-008", "category": "landscaping", "material_or_item": "Raised bed box", "quantity": "minimum box height, low end", "value": null, "value_text": "", "unit": "in", "value_si": null, "unit_si": "mm", "condition": "framed bed", "source": { "publisher": "Utah State University Extension", "title": "Raised Bed Gardening", "url": "https://extension.usu.edu/yardandgarden/research/raised-bed-gardening", "type": "other" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/topsoil-calculator/" ], "engine_file": [ "site/src/data/reference/topsoil.ts" ], "engine_symbol": [ "TOPSOIL_JOBS[\"raised-bed\"].low" ], "notes": "The source gives a range of box heights.", "withheld": true, "withheld_hosts": [ "extension.usu.edu" ] }, { "id": "ASP-001", "category": "asphalt", "material_or_item": "Hot-mix asphalt", "quantity": "unit weight in place, low end of range", "value": null, "value_text": "", "unit": "lb/ft3", "value_si": null, "unit_si": "kg/m3", "condition": "in place (compacted)", "source": { "publisher": "Asphalt Institute", "title": "Engineering FAQs", "url": "https://www.asphaltinstitute.org/engineering/engineering-faqs/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/paving/asphalt-calculator/" ], "engine_file": [ "site/src/data/reference/asphalt.ts" ], "engine_symbol": [ "AI_PCF_MIN" ], "notes": "", "withheld": true, "withheld_hosts": [ "asphaltinstitute.org" ] }, { "id": "ASP-002", "category": "asphalt", "material_or_item": "Hot-mix asphalt", "quantity": "unit weight in place, estimating value", "value": null, "value_text": "", "unit": "lb/ft3", "value_si": null, "unit_si": "kg/m3", "condition": "in place (compacted)", "source": { "publisher": "Asphalt Institute", "title": "Engineering FAQs", "url": "https://www.asphaltinstitute.org/engineering/engineering-faqs/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/paving/asphalt-calculator/" ], "engine_file": [ "site/src/data/reference/asphalt.ts" ], "engine_symbol": [ "AI_PCF" ], "notes": "The source gives a range and names the value to use for estimating.", "withheld": true, "withheld_hosts": [ "asphaltinstitute.org" ] }, { "id": "ASP-003", "category": "asphalt", "material_or_item": "Compacted asphalt pavement", "quantity": "spread rate per inch of compacted thickness", "value": null, "value_text": "", "unit": "lb/(yd2*in)", "value_si": null, "unit_si": "kg/(m2*mm)", "condition": "compacted", "source": { "publisher": "Minnesota Asphalt Pavement Association", "title": "Asphalt calculator", "url": "https://www.asphaltisbest.com/asphalt-calculator", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/paving/asphalt-calculator/" ], "engine_file": [ "site/src/data/reference/asphalt.ts" ], "engine_symbol": [ "MAPA_LB_PER_SQYD_IN" ], "notes": "Stated as the association's own assumption.", "withheld": true, "withheld_hosts": [ "asphaltisbest.com" ] }, { "id": "ASP-004", "category": "asphalt", "material_or_item": "Dense-graded hot-mix asphalt", "quantity": "placement rate per inch of pavement", "value": 110, "value_text": "110", "unit": "lb/(yd2*in)", "value_si": 2.349, "unit_si": "kg/(m2*mm)", "condition": "unless the plans show another rate", "source": { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 341", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s341.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/paving/asphalt-calculator/" ], "engine_file": [ "site/src/data/reference/asphalt.ts" ], "engine_symbol": [ "MAPA_LB_PER_SQYD_IN" ], "notes": "State DOT specification (Texas); same figure as the MAPA row, second source.", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-001", "category": "masonry", "material_or_item": "Concrete masonry unit, conventional", "quantity": "nominal face height", "value": 8, "value_text": "8", "unit": "in", "value_si": 203.2, "unit_si": "mm", "condition": "nominal (includes 3/8 in joint)", "source": { "publisher": "National Concrete Masonry Association (republished by R.I. Lampus)", "title": "NCMA TEK 2-1B, Typical Sizes and Shapes of Concrete Masonry Units", "url": "https://www.lampus.com/files/Resources/NCMA-TEK-02-01B.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "NOMINAL_FACE_H_IN" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-002", "category": "masonry", "material_or_item": "Concrete masonry unit, conventional", "quantity": "nominal face length", "value": 16, "value_text": "16", "unit": "in", "value_si": 406.4, "unit_si": "mm", "condition": "nominal (includes 3/8 in joint)", "source": { "publisher": "National Concrete Masonry Association (republished by R.I. Lampus)", "title": "NCMA TEK 2-1B, Typical Sizes and Shapes of Concrete Masonry Units", "url": "https://www.lampus.com/files/Resources/NCMA-TEK-02-01B.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "NOMINAL_FACE_L_IN" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-003", "category": "masonry", "material_or_item": "Concrete masonry mortar joint", "quantity": "joint thickness (specified size = nominal minus this)", "value": 0.375, "value_text": "0.375", "unit": "in", "value_si": 9.525, "unit_si": "mm", "condition": "", "source": { "publisher": "National Concrete Masonry Association (republished by R.I. Lampus)", "title": "NCMA TEK 2-1B, Typical Sizes and Shapes of Concrete Masonry Units", "url": "https://www.lampus.com/files/Resources/NCMA-TEK-02-01B.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "JOINT_IN" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-004", "category": "masonry", "material_or_item": "Concrete masonry unit, 8 x 16 in nominal", "quantity": "exposed face area per unit", "value": 0.8889, "value_text": "0.8889", "unit": "ft2 (per unit face)", "value_si": 0.08258, "unit_si": "m2 (per unit face)", "condition": "8/9 ft2", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "FACE_SQFT" ], "notes": "Exact value 8/9.", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-005", "category": "masonry", "material_or_item": "Concrete masonry unit, 8 x 16 in nominal", "quantity": "units per 100 ft2 of wall", "value": 119, "value_text": "119", "unit": "units/100 ft2", "value_si": 12.81, "unit_si": "units/m2", "condition": "includes 5 % waste and breakage", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "UNITS_PER_100_SQFT" ], "notes": "Independent of unit width; subtract openings.", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-006", "category": "masonry", "material_or_item": "Concrete masonry unit, 8 x 16 in nominal", "quantity": "waste and breakage allowance inside the 119 figure", "value": 5, "value_text": "5", "unit": "percent", "value_si": 5, "unit_si": "percent", "condition": "", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "DEFAULT_WASTE_PCT" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-007", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "masonry cement bag weight", "value": 70, "value_text": "70", "unit": "lb", "value_si": 31.75, "unit_si": "kg", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "MASONRY_BAG_LB" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-008", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "units laid per 70 lb bag of masonry cement", "value": 30, "value_text": "30", "unit": "units/bag", "value_si": 30, "unit_si": "units/bag", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "UNITS_PER_MASONRY_BAG" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-009", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "bags of masonry cement per short ton of masonry sand", "value": 8, "value_text": "8", "unit": "bags/short ton of sand", "value_si": 8.818, "unit_si": "bags/t of sand", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "MASONRY_BAGS_PER_TON_SAND" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-010", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "sand quantity above which extra sand is added", "value": 3, "value_text": "3", "unit": "short tons", "value_si": 2.722, "unit_si": "t", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "SAND_WASTE_THRESHOLD_TONS" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-011", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "extra sand added above that quantity", "value": 0.5, "value_text": "0.5", "unit": "short tons", "value_si": 0.4536, "unit_si": "t", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "SAND_WASTE_EXTRA_TONS" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-012", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "units laid per short ton of sand", "value": 240, "value_text": "240", "unit": "units/short ton of sand", "value_si": 264.6, "unit_si": "units/t of sand", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "UNITS_PER_TON_SAND" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-013", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "portland cement bag weight", "value": 94, "value_text": "94", "unit": "lb", "value_si": 42.64, "unit_si": "kg", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "PORTLAND_BAG_LB" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-014", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "units laid per 94 lb bag of portland cement", "value": 62, "value_text": "62", "unit": "units/bag of portland cement", "value_si": 62, "unit_si": "units/bag of portland cement", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "UNITS_PER_PORTLAND_BAG" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-015", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "hydrated lime bag weight", "value": 50, "value_text": "50", "unit": "lb", "value_si": 22.68, "unit_si": "kg", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "LIME_BAG_LB" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-016", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "lime bags per portland cement bag", "value": 0.5, "value_text": "0.5", "unit": "lime bags/portland bag", "value_si": 0.5, "unit_si": "lime bags/portland bag", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "LIME_BAGS_PER_PORTLAND_BAG" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "MAS-017", "category": "masonry", "material_or_item": "Mortar for concrete masonry (approximate)", "quantity": "sand per portland cement bag", "value": 4.25, "value_text": "4.25", "unit": "ft3 of sand/bag", "value_si": 0.1203, "unit_si": "m3 of sand/bag", "condition": "face-shell bedding", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/concrete-block-calculator/" ], "engine_file": [ "site/src/data/reference/block.ts" ], "engine_symbol": [ "SAND_CUFT_PER_PORTLAND_BAG" ], "notes": "Rule of thumb for face-shell mortar bedding, cement batched on site with separate sand (not preblended mortar).", "withheld": false, "withheld_hosts": [] }, { "id": "PAV-001", "category": "pavers", "material_or_item": "Interlocking pavers, Walks (pedestrian)", "quantity": "minimum compacted aggregate base, low end", "value": 4, "value_text": "4", "unit": "in", "value_si": 101.6, "unit_si": "mm", "condition": "compacted", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "Tech Spec 10, Application Guide (2022)", "url": "https://www.cmha.org/wp-content/uploads/2023/12/TechSpec10-ApplicationGuide2022.pdf", "type": "trade_association" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/paver-base-calculator/" ], "engine_file": [ "site/src/data/reference/paver-base.ts", "site/src/data/reference/paver-base.ts" ], "engine_symbol": [ "BASE_MIN_IN[\"walk\"][0]", "BASE_DEPTH_IN_LOW" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "PAV-002", "category": "pavers", "material_or_item": "Interlocking pavers, Walks (pedestrian)", "quantity": "minimum compacted aggregate base, high end", "value": 6, "value_text": "6", "unit": "in", "value_si": 152.4, "unit_si": "mm", "condition": "compacted", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "Tech Spec 10, Application Guide (2022)", "url": "https://www.cmha.org/wp-content/uploads/2023/12/TechSpec10-ApplicationGuide2022.pdf", "type": "trade_association" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/paver-base-calculator/" ], "engine_file": [ "site/src/data/reference/paver-base.ts" ], "engine_symbol": [ "BASE_MIN_IN[\"walk\"][1]" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "PAV-003", "category": "pavers", "material_or_item": "Interlocking pavers, Driveways", "quantity": "minimum compacted aggregate base, low end", "value": 6, "value_text": "6", "unit": "in", "value_si": 152.4, "unit_si": "mm", "condition": "compacted", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "Tech Spec 10, Application Guide (2022)", "url": "https://www.cmha.org/wp-content/uploads/2023/12/TechSpec10-ApplicationGuide2022.pdf", "type": "trade_association" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/paver-base-calculator/" ], "engine_file": [ "site/src/data/reference/paver-base.ts" ], "engine_symbol": [ "BASE_MIN_IN[\"driveway\"][0]" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "PAV-004", "category": "pavers", "material_or_item": "Interlocking pavers, Driveways", "quantity": "minimum compacted aggregate base, high end", "value": 8, "value_text": "8", "unit": "in", "value_si": 203.2, "unit_si": "mm", "condition": "compacted", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "Tech Spec 10, Application Guide (2022)", "url": "https://www.cmha.org/wp-content/uploads/2023/12/TechSpec10-ApplicationGuide2022.pdf", "type": "trade_association" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/paver-base-calculator/" ], "engine_file": [ "site/src/data/reference/paver-base.ts" ], "engine_symbol": [ "BASE_MIN_IN[\"driveway\"][1]" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "PAV-005", "category": "pavers", "material_or_item": "Interlocking pavers, Streets", "quantity": "minimum compacted aggregate base, low end", "value": 8, "value_text": "8", "unit": "in", "value_si": 203.2, "unit_si": "mm", "condition": "compacted", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "Tech Spec 10, Application Guide (2022)", "url": "https://www.cmha.org/wp-content/uploads/2023/12/TechSpec10-ApplicationGuide2022.pdf", "type": "trade_association" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/paver-base-calculator/" ], "engine_file": [ "site/src/data/reference/paver-base.ts" ], "engine_symbol": [ "BASE_MIN_IN[\"street\"][0]" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "PAV-006", "category": "pavers", "material_or_item": "Interlocking pavers, Streets", "quantity": "minimum compacted aggregate base, high end", "value": 12, "value_text": "12", "unit": "in", "value_si": 304.8, "unit_si": "mm", "condition": "compacted", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "Tech Spec 10, Application Guide (2022)", "url": "https://www.cmha.org/wp-content/uploads/2023/12/TechSpec10-ApplicationGuide2022.pdf", "type": "trade_association" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/paver-base-calculator/" ], "engine_file": [ "site/src/data/reference/paver-base.ts" ], "engine_symbol": [ "BASE_MIN_IN[\"street\"][1]" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "PAV-007", "category": "pavers", "material_or_item": "Bedding sand under pavers", "quantity": "screeded thickness, upper end", "value": 1.5, "value_text": "1.5", "unit": "in", "value_si": 38.1, "unit_si": "mm", "condition": "uncompacted, before pavers are vibrated in", "source": { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "Tech Spec 10, Application Guide (2022)", "url": "https://www.cmha.org/wp-content/uploads/2023/12/TechSpec10-ApplicationGuide2022.pdf", "type": "trade_association" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/masonry/paver-base-calculator/" ], "engine_file": [ "site/src/data/reference/paver-base.ts" ], "engine_symbol": [ "BEDDING_MAX_IN" ], "notes": "The source gives 1 to 1-1/2 in.", "withheld": false, "withheld_hosts": [] }, { "id": "PAV-008", "category": "pavers", "material_or_item": "Bedding sand under pavers", "quantity": "screeded thickness", "value": 1, "value_text": "1", "unit": "in", "value_si": 25.4, "unit_si": "mm", "condition": "screeded over 1 in pipes", "source": { "publisher": "Oregon State University Extension Service", "title": "10-Step Guide to Installing Pavers", "url": "https://extension.oregonstate.edu/sites/extd8/files/documents/1/howtoinstallpavers.pdf", "type": "other" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/earthwork/sand-calculator/", "https://takeoffmetric.com/masonry/paver-base-calculator/" ], "engine_file": [ "site/src/data/reference/sand.ts", "site/src/data/reference/paver-base.ts" ], "engine_symbol": [ "BEDDING_IN", "BEDDING_IN" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "ROF-001", "category": "roofing", "material_or_item": "GAF Timberline HDZ laminated shingles", "quantity": "bundles per square", "value": null, "value_text": "", "unit": "bundles/square", "value_si": null, "unit_si": "bundles/m2", "condition": "1 square = 100 ft2", "source": { "publisher": "GAF", "title": "Timberline HDZ Shingles, specification sheet (RESGN467HDZ), archived copy", "url": "https://web.archive.org/web/2024/https://www.gaf.com/en-us/document-library/documents/specifications/timberline-hdz-shingles-spec-sheet-resgn467hdz.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/roofing/roofing-calculator/" ], "engine_file": [ "site/src/data/reference/roofing.ts" ], "engine_symbol": [ "HDZ_BUNDLES_PER_SQUARE" ], "notes": "One product line.", "withheld": true, "withheld_hosts": [ "gaf.com" ] }, { "id": "ROF-002", "category": "roofing", "material_or_item": "GAF Timberline HDZ laminated shingles", "quantity": "pieces per square", "value": null, "value_text": "", "unit": "pieces/square", "value_si": null, "unit_si": "pieces/m2", "condition": "1 square = 100 ft2", "source": { "publisher": "GAF", "title": "Timberline HDZ Shingles, specification sheet (RESGN467HDZ), archived copy", "url": "https://web.archive.org/web/2024/https://www.gaf.com/en-us/document-library/documents/specifications/timberline-hdz-shingles-spec-sheet-resgn467hdz.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/roofing/roofing-calculator/" ], "engine_file": [ "site/src/data/reference/roofing.ts" ], "engine_symbol": [ "HDZ_PIECES_PER_SQUARE" ], "notes": "One product line.", "withheld": true, "withheld_hosts": [ "gaf.com" ] }, { "id": "ROF-003", "category": "roofing", "material_or_item": "GAF Seal-A-Ridge ridge cap shingles", "quantity": "bundles per 100 linear feet", "value": null, "value_text": "", "unit": "bundles/100 lf", "value_si": null, "unit_si": "bundles/m", "condition": "", "source": { "publisher": "GAF", "title": "Seal-A-Ridge Ridge Cap Shingles, sell sheet (RESHR112), archived copy", "url": "https://web.archive.org/web/20250709161926/https://www.gaf.com/en-us/document-library/documents/data-sheets/seal-a-ridge-ridge-cap-shingles-sell-sheet-reshr112.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/roofing/roofing-calculator/" ], "engine_file": [ "site/src/data/reference/roofing.ts" ], "engine_symbol": [ "SEAL_A_RIDGE_BUNDLES_PER_100_LF" ], "notes": "One product line.", "withheld": true, "withheld_hosts": [ "gaf.com" ] }, { "id": "ROF-004", "category": "roofing", "material_or_item": "GAF Pro-Start starter strip", "quantity": "linear feet per bundle", "value": null, "value_text": "", "unit": "lf/bundle", "value_si": null, "unit_si": "m/bundle", "condition": "sheets split in half", "source": { "publisher": "GAF", "title": "Pro-Start Starter Strip Shingle, sell sheet (RESGN546-0723), distributor copy (Fransyl)", "url": "https://www.fransyl.com/DATA/PRODUIT/PDF_en/2638_en~v~pro-start-starter-strip-shingle.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/roofing/roofing-calculator/" ], "engine_file": [ "site/src/data/reference/roofing.ts" ], "engine_symbol": [ "PRO_START_LF_PER_BUNDLE" ], "notes": "One product.", "withheld": true, "withheld_hosts": [ "fransyl.com", "gaf.com" ] }, { "id": "ROF-005", "category": "roofing", "material_or_item": "GAF FeltBuster synthetic underlayment", "quantity": "squares per roll", "value": null, "value_text": "", "unit": "squares/roll", "value_si": null, "unit_si": "m2/roll", "condition": "excludes laps", "source": { "publisher": "GAF", "title": "FeltBuster Synthetic Roofing Felt, sell sheet (RESUL183), contractor copy", "url": "https://www.thrushandson.com/wp-content/uploads/FeltBuster-1.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/roofing/roofing-calculator/" ], "engine_file": [ "site/src/data/reference/roofing.ts" ], "engine_symbol": [ "FELTBUSTER_SQUARES_PER_ROLL" ], "notes": "One product.", "withheld": true, "withheld_hosts": [ "thrushandson.com", "gaf.com" ] }, { "id": "ROF-006", "category": "roofing", "material_or_item": "GAF FeltBuster synthetic underlayment", "quantity": "coverage per roll", "value": null, "value_text": "", "unit": "ft2/roll", "value_si": null, "unit_si": "m2/roll", "condition": "excludes laps", "source": { "publisher": "GAF", "title": "FeltBuster Synthetic Roofing Felt, sell sheet (RESUL183), contractor copy", "url": "https://www.thrushandson.com/wp-content/uploads/FeltBuster-1.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/roofing/roofing-calculator/" ], "engine_file": [ "site/src/data/reference/roofing.ts" ], "engine_symbol": [ "FELTBUSTER_SQFT_PER_ROLL" ], "notes": "One product.", "withheld": true, "withheld_hosts": [ "thrushandson.com", "gaf.com" ] }, { "id": "LUM-001", "category": "lumber", "material_or_item": "Board foot", "quantity": "volume of one board foot", "value": null, "value_text": "", "unit": "in3", "value_si": null, "unit_si": "m3", "condition": "sawed lumber, 1 in x 12 in x 1 ft", "source": { "publisher": "University of Missouri Extension", "title": "G5050, How to Measure Lumber (board foot definition)", "url": "https://extension.missouri.edu/publications/g5050", "type": "other" }, "date_opened": "2026-09-20", "date_opened_unix": 1789862400, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "CU_IN_PER_BOARD_FOOT" ], "notes": "", "withheld": true, "withheld_hosts": [ "extension.missouri.edu" ] }, { "id": "LUM-002", "category": "lumber", "material_or_item": "Softwood lumber, nominal 1 in thickness", "quantity": "minimum dressed thickness, dry", "value": 0.75, "value_text": "0.75", "unit": "in", "value_si": 19.05, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_THICKNESS_IN[\"1\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 19.1 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-003", "category": "lumber", "material_or_item": "Softwood lumber, nominal 2 in thickness", "quantity": "minimum dressed thickness, dry", "value": 1.5, "value_text": "1.5", "unit": "in", "value_si": 38.1, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_THICKNESS_IN[\"2\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 38.1 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-004", "category": "lumber", "material_or_item": "Softwood lumber, nominal 2 in width", "quantity": "minimum dressed width, dry", "value": 1.5, "value_text": "1.5", "unit": "in", "value_si": 38.1, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"2\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 38.1 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-005", "category": "lumber", "material_or_item": "Softwood lumber, nominal 3 in width", "quantity": "minimum dressed width, dry", "value": 2.5, "value_text": "2.5", "unit": "in", "value_si": 63.5, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"3\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 63.5 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-006", "category": "lumber", "material_or_item": "Softwood lumber, nominal 4 in width", "quantity": "minimum dressed width, dry", "value": 3.5, "value_text": "3.5", "unit": "in", "value_si": 88.9, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/", "https://takeoffmetric.com/decks-fences/deck-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts", "site/src/data/reference/deck.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"4\"]", "DRESSED_WIDTH_4_IN" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 88.9 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-007", "category": "lumber", "material_or_item": "Softwood lumber, nominal 5 in width", "quantity": "minimum dressed width, dry", "value": 4.5, "value_text": "4.5", "unit": "in", "value_si": 114.3, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"5\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 114.3 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-008", "category": "lumber", "material_or_item": "Softwood lumber, nominal 6 in width", "quantity": "minimum dressed width, dry", "value": 5.5, "value_text": "5.5", "unit": "in", "value_si": 139.7, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/", "https://takeoffmetric.com/decks-fences/deck-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts", "site/src/data/reference/deck.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"6\"]", "DRESSED_WIDTH_6_IN" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 139.7 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-009", "category": "lumber", "material_or_item": "Softwood lumber, nominal 7 in width", "quantity": "minimum dressed width, dry", "value": 6.5, "value_text": "6.5", "unit": "in", "value_si": 165.1, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"7\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 165.1 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-010", "category": "lumber", "material_or_item": "Softwood lumber, nominal 8 in width", "quantity": "minimum dressed width, dry", "value": 7.25, "value_text": "7.25", "unit": "in", "value_si": 184.2, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"8\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 184.2 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-011", "category": "lumber", "material_or_item": "Softwood lumber, nominal 9 in width", "quantity": "minimum dressed width, dry", "value": 8.25, "value_text": "8.25", "unit": "in", "value_si": 209.6, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"9\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 209.6 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-012", "category": "lumber", "material_or_item": "Softwood lumber, nominal 10 in width", "quantity": "minimum dressed width, dry", "value": 9.25, "value_text": "9.25", "unit": "in", "value_si": 235, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"10\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 235.0 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-013", "category": "lumber", "material_or_item": "Softwood lumber, nominal 11 in width", "quantity": "minimum dressed width, dry", "value": 10.25, "value_text": "10.25", "unit": "in", "value_si": 260.4, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"11\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 260.4 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-014", "category": "lumber", "material_or_item": "Softwood lumber, nominal 12 in width", "quantity": "minimum dressed width, dry", "value": 11.25, "value_text": "11.25", "unit": "in", "value_si": 285.8, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/", "https://takeoffmetric.com/stairs/stair-stringer-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts", "site/src/data/reference/stair.ts", "site/src/engine/formulas/stairs/stair-stringer.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"12\"]", "NOMINAL_2X12_ACTUAL_WIDTH_IN", "BOARD_WIDTH_IN" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 285.8 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-015", "category": "lumber", "material_or_item": "Softwood lumber, nominal 14 in width", "quantity": "minimum dressed width, dry", "value": 13.25, "value_text": "13.25", "unit": "in", "value_si": 336.6, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"14\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 336.6 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "LUM-016", "category": "lumber", "material_or_item": "Softwood lumber, nominal 16 in width", "quantity": "minimum dressed width, dry", "value": 15.25, "value_text": "15.25", "unit": "in", "value_si": 387.4, "unit_si": "mm", "condition": "dry", "source": { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, "date_opened": "2026-10-01", "date_opened_unix": 1790812800, "used_by_tool_url": [ "https://takeoffmetric.com/framing/board-foot-calculator/" ], "engine_file": [ "site/src/data/reference/board-foot.ts" ], "engine_symbol": [ "DRESSED_WIDTH_IN[\"16\"]" ], "notes": "Minimum dressed size, dry (19 % moisture or less), softwood lumber standard; not a given product's size. Source prints 387.4 mm (PS 20-25 supersedes PS 20-20 Revision 1).", "withheld": false, "withheld_hosts": [] }, { "id": "FRM-001", "category": "framing", "material_or_item": "Wood stud wall", "quantity": "stud spacing on center, conventional framing", "value": null, "value_text": "", "unit": "in", "value_si": null, "unit_si": "mm", "condition": "conventional framing", "source": { "publisher": "APA - The Engineered Wood Association", "title": "Advanced Framing Construction Guide, Form No. M400A", "url": "https://constructioninstruction.com/wp-content/uploads/2020/11/APA-Advanced-Framing-Construction-Guide.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/framing/wall-framing-calculator/" ], "engine_file": [ "site/src/data/reference/framing.ts" ], "engine_symbol": [ "CONVENTIONAL_SPACING_IN" ], "notes": "Describes two framing practices; stud size, height and spacing are set by the building code and your plans.", "withheld": true, "withheld_hosts": [ "constructioninstruction.com", "apawood.org" ] }, { "id": "FRM-002", "category": "framing", "material_or_item": "Wood stud wall", "quantity": "stud spacing on center, advanced framing", "value": null, "value_text": "", "unit": "in", "value_si": null, "unit_si": "mm", "condition": "advanced framing (2x6)", "source": { "publisher": "APA - The Engineered Wood Association", "title": "Advanced Framing Construction Guide, Form No. M400A", "url": "https://constructioninstruction.com/wp-content/uploads/2020/11/APA-Advanced-Framing-Construction-Guide.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/framing/wall-framing-calculator/" ], "engine_file": [ "site/src/data/reference/framing.ts" ], "engine_symbol": [ "ADVANCED_SPACING_IN" ], "notes": "Describes two framing practices; stud size, height and spacing are set by the building code and your plans.", "withheld": true, "withheld_hosts": [ "constructioninstruction.com", "apawood.org" ] }, { "id": "FRM-003", "category": "framing", "material_or_item": "Wood stud wall", "quantity": "top plates, conventional framing", "value": null, "value_text": "", "unit": "top plates", "value_si": null, "unit_si": "top plates", "condition": "conventional framing", "source": { "publisher": "APA - The Engineered Wood Association", "title": "Advanced Framing Construction Guide, Form No. M400A", "url": "https://constructioninstruction.com/wp-content/uploads/2020/11/APA-Advanced-Framing-Construction-Guide.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/framing/wall-framing-calculator/" ], "engine_file": [ "site/src/data/reference/framing.ts" ], "engine_symbol": [ "CONVENTIONAL_TOP_PLATES" ], "notes": "Describes two framing practices; stud size, height and spacing are set by the building code and your plans.", "withheld": true, "withheld_hosts": [ "constructioninstruction.com", "apawood.org" ] }, { "id": "FRM-004", "category": "framing", "material_or_item": "Wood stud wall", "quantity": "top plates, advanced framing", "value": null, "value_text": "", "unit": "top plates", "value_si": null, "unit_si": "top plates", "condition": "advanced framing", "source": { "publisher": "APA - The Engineered Wood Association", "title": "Advanced Framing Construction Guide, Form No. M400A", "url": "https://constructioninstruction.com/wp-content/uploads/2020/11/APA-Advanced-Framing-Construction-Guide.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/framing/wall-framing-calculator/" ], "engine_file": [ "site/src/data/reference/framing.ts" ], "engine_symbol": [ "ADVANCED_TOP_PLATES" ], "notes": "Describes two framing practices; stud size, height and spacing are set by the building code and your plans.", "withheld": true, "withheld_hosts": [ "constructioninstruction.com", "apawood.org" ] }, { "id": "FRM-005", "category": "framing", "material_or_item": "Wood stud wall", "quantity": "king studs per opening", "value": null, "value_text": "", "unit": "studs", "value_si": null, "unit_si": "studs", "condition": "one pair per opening", "source": { "publisher": "APA - The Engineered Wood Association", "title": "Advanced Framing Construction Guide, Form No. M400A", "url": "https://constructioninstruction.com/wp-content/uploads/2020/11/APA-Advanced-Framing-Construction-Guide.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/framing/wall-framing-calculator/" ], "engine_file": [ "site/src/data/reference/framing.ts" ], "engine_symbol": [ "KINGS_PER_OPENING" ], "notes": "Describes two framing practices; stud size, height and spacing are set by the building code and your plans.", "withheld": true, "withheld_hosts": [ "constructioninstruction.com", "apawood.org" ] }, { "id": "FRM-006", "category": "framing", "material_or_item": "Wood stud wall", "quantity": "jack studs per side of an opening", "value": null, "value_text": "", "unit": "studs", "value_si": null, "unit_si": "studs", "condition": "one pair per opening", "source": { "publisher": "APA - The Engineered Wood Association", "title": "Advanced Framing Construction Guide, Form No. M400A", "url": "https://constructioninstruction.com/wp-content/uploads/2020/11/APA-Advanced-Framing-Construction-Guide.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/framing/wall-framing-calculator/" ], "engine_file": [ "site/src/data/reference/framing.ts" ], "engine_symbol": [ "JACKS_PER_SIDE_DEFAULT" ], "notes": "Describes two framing practices; stud size, height and spacing are set by the building code and your plans.", "withheld": true, "withheld_hosts": [ "constructioninstruction.com", "apawood.org" ] }, { "id": "FRM-007", "category": "framing", "material_or_item": "Wood stud wall", "quantity": "studs at an interior wall intersection, conventional", "value": null, "value_text": "", "unit": "studs", "value_si": null, "unit_si": "studs", "condition": "one stud on each side of the intersecting wall", "source": { "publisher": "APA - The Engineered Wood Association", "title": "Advanced Framing Construction Guide, Form No. M400A", "url": "https://constructioninstruction.com/wp-content/uploads/2020/11/APA-Advanced-Framing-Construction-Guide.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/framing/wall-framing-calculator/" ], "engine_file": [ "site/src/data/reference/framing.ts" ], "engine_symbol": [ "TEE_STUDS_CONVENTIONAL" ], "notes": "Describes two framing practices; stud size, height and spacing are set by the building code and your plans.", "withheld": true, "withheld_hosts": [ "constructioninstruction.com", "apawood.org" ] }, { "id": "FRM-008", "category": "framing", "material_or_item": "Wood stud wall", "quantity": "studs added at an interior wall intersection, ladder junction", "value": null, "value_text": "", "unit": "studs", "value_si": null, "unit_si": "studs", "condition": "advanced framing; blocking instead of extra studs", "source": { "publisher": "APA - The Engineered Wood Association", "title": "Advanced Framing Construction Guide, Form No. M400A", "url": "https://constructioninstruction.com/wp-content/uploads/2020/11/APA-Advanced-Framing-Construction-Guide.pdf", "type": "trade_association" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/framing/wall-framing-calculator/" ], "engine_file": [ "site/src/data/reference/framing.ts" ], "engine_symbol": [ "TEE_STUDS_LADDER" ], "notes": "Describes two framing practices; stud size, height and spacing are set by the building code and your plans.", "withheld": true, "withheld_hosts": [ "constructioninstruction.com", "apawood.org" ] }, { "id": "DCK-001", "category": "decking", "material_or_item": "Trex composite deck boards", "quantity": "side-to-side gap, minimum", "value": null, "value_text": "", "unit": "in", "value_si": null, "unit_si": "mm", "condition": "minimum", "source": { "publisher": "Trex Company", "title": "Trex 2026 Decking Installation Guide (copy hosted by The Home Depot)", "url": "https://images.thdstatic.com/catalog/pdfImages/bd/bd0b6ac7-924e-452a-be97-a1d9ecc32864.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/decks-fences/deck-calculator/" ], "engine_file": [ "site/src/data/reference/deck.ts" ], "engine_symbol": [ "GAP_MIN_IN" ], "notes": "One product line (Trex composite decking).", "withheld": true, "withheld_hosts": [ "images.thdstatic.com", "trex.com" ] }, { "id": "DCK-002", "category": "decking", "material_or_item": "Trex composite deck boards", "quantity": "side-to-side gap in heavily wooded areas", "value": null, "value_text": "", "unit": "in", "value_si": null, "unit_si": "mm", "condition": "recommended in heavily wooded areas", "source": { "publisher": "Trex Company", "title": "Trex 2026 Decking Installation Guide (copy hosted by The Home Depot)", "url": "https://images.thdstatic.com/catalog/pdfImages/bd/bd0b6ac7-924e-452a-be97-a1d9ecc32864.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/decks-fences/deck-calculator/" ], "engine_file": [ "site/src/data/reference/deck.ts" ], "engine_symbol": [ "GAP_WOODED_IN" ], "notes": "One product line (Trex composite decking).", "withheld": true, "withheld_hosts": [ "images.thdstatic.com", "trex.com" ] }, { "id": "DCK-003", "category": "decking", "material_or_item": "Trex composite deck boards", "quantity": "side-to-side gap, never over", "value": null, "value_text": "", "unit": "in", "value_si": null, "unit_si": "mm", "condition": "maximum", "source": { "publisher": "Trex Company", "title": "Trex 2026 Decking Installation Guide (copy hosted by The Home Depot)", "url": "https://images.thdstatic.com/catalog/pdfImages/bd/bd0b6ac7-924e-452a-be97-a1d9ecc32864.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/decks-fences/deck-calculator/" ], "engine_file": [ "site/src/data/reference/deck.ts" ], "engine_symbol": [ "GAP_MAX_IN" ], "notes": "One product line (Trex composite decking).", "withheld": true, "withheld_hosts": [ "images.thdstatic.com", "trex.com" ] }, { "id": "DCK-004", "category": "decking", "material_or_item": "Trex composite deck boards", "quantity": "face screws per joist", "value": null, "value_text": "", "unit": "screws/joist", "value_si": null, "unit_si": "screws/joist", "condition": "", "source": { "publisher": "Trex Company", "title": "Trex 2026 Decking Installation Guide (copy hosted by The Home Depot)", "url": "https://images.thdstatic.com/catalog/pdfImages/bd/bd0b6ac7-924e-452a-be97-a1d9ecc32864.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-19", "date_opened_unix": 1789776000, "used_by_tool_url": [ "https://takeoffmetric.com/decks-fences/deck-calculator/" ], "engine_file": [ "site/src/data/reference/deck.ts" ], "engine_symbol": [ "SCREWS_PER_JOIST" ], "notes": "One product line (Trex composite decking).", "withheld": true, "withheld_hosts": [ "images.thdstatic.com", "trex.com" ] }, { "id": "HVC-001", "category": "hvac", "material_or_item": "Standard air", "quantity": "density", "value": 0.075, "value_text": "0.075", "unit": "lbm/ft3", "value_si": 1.201, "unit_si": "kg/m3", "condition": "70 F +/- 30 F, below 1,500 ft, moisture up to 0.02 lb water per lb dry air", "source": { "publisher": "McGill AirFlow", "title": "Engineering Design Advisory #1, Duct design", "url": "https://www.mcgillairflow.com/pdf/cas/designAdvisory01.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-26", "date_opened_unix": 1790380800, "used_by_tool_url": [ "https://takeoffmetric.com/hvac/duct-calculator/" ], "engine_file": [ "site/src/data/reference/duct.ts" ], "engine_symbol": [ "RHO_LBM" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "HVC-002", "category": "hvac", "material_or_item": "Standard air", "quantity": "velocity pressure constant, V = 4005 x sqrt(VP)", "value": 4005, "value_text": "4005", "unit": "fpm/sqrt(in wg)", "value_si": null, "unit_si": "", "condition": "standard air, 70 F, 29.92 in Hg", "source": { "publisher": "Pacific Northwest National Laboratory / U.S. DOE Building America Solution Center", "title": "Measuring Mechanical Ventilation Airflow", "url": "https://basc.pnnl.gov/resource-guides/measuring-mechanical-ventilation-airflow", "type": "other" }, "date_opened": "2026-09-26", "date_opened_unix": 1790380800, "used_by_tool_url": [ "https://takeoffmetric.com/hvac/duct-calculator/" ], "engine_file": [ "site/src/data/reference/duct.ts" ], "engine_symbol": [ "VP_K" ], "notes": "Unit-specific coefficient (V in fpm, VP in in. wg); no SI value given.", "withheld": false, "withheld_hosts": [] }, { "id": "HVC-003", "category": "hvac", "material_or_item": "Galvanized steel duct", "quantity": "absolute roughness of galvanized duct fittings supplied by ASHRAE", "value": null, "value_text": "", "unit": "mm", "value_si": null, "unit_si": "mm", "condition": "new galvanized fittings", "source": { "publisher": "Liu, Long & Chen (2012), HVAC&R Research, ASHRAE RP-1493", "title": "Duct fittings study, surface roughness of galvanized steel as provided by ASHRAE", "url": "https://engineering.purdue.edu/~yanchen/paper/2012-10.pdf", "type": "other" }, "date_opened": "2026-09-26", "date_opened_unix": 1790380800, "used_by_tool_url": [ "https://takeoffmetric.com/hvac/duct-calculator/" ], "engine_file": [ "site/src/data/reference/duct.ts" ], "engine_symbol": [ "EPS_GALV_MM" ], "notes": "Peer-reviewed paper quoting ASHRAE. Straight-duct roughness is not given by the paper.", "withheld": true, "withheld_hosts": [ "engineering.purdue.edu" ] }, { "id": "HVC-004", "category": "hvac", "material_or_item": "Air", "quantity": "dynamic viscosity at sea-level standard day", "value": 3.62e-7, "value_text": "3.62e-7", "unit": "lb*s/ft2", "value_si": 0.00001733, "unit_si": "Pa*s", "condition": "59 F", "source": { "publisher": "NASA Glenn Research Center", "title": "Viscosity of air, Sutherland's formula", "url": "https://www.grc.nasa.gov/www/k-12/airplane/viscosity.html", "type": "federal_public_domain" }, "date_opened": "2026-09-26", "date_opened_unix": 1790380800, "used_by_tool_url": [ "https://takeoffmetric.com/hvac/duct-calculator/" ], "engine_file": [ "site/src/data/reference/duct.ts" ], "engine_symbol": [ "MU0" ], "notes": "Carried to 70 F with Sutherland's law (3.679e-7 lb*s/ft2, arithmetic).", "withheld": false, "withheld_hosts": [] }, { "id": "HVC-005", "category": "hvac", "material_or_item": "Air", "quantity": "Sutherland constant", "value": 198.72, "value_text": "198.72", "unit": "degR", "value_si": 110.4, "unit_si": "K", "condition": "", "source": { "publisher": "NASA Glenn Research Center", "title": "Viscosity of air, Sutherland's formula", "url": "https://www.grc.nasa.gov/www/k-12/airplane/viscosity.html", "type": "federal_public_domain" }, "date_opened": "2026-09-26", "date_opened_unix": 1790380800, "used_by_tool_url": [ "https://takeoffmetric.com/hvac/duct-calculator/" ], "engine_file": [ "site/src/data/reference/duct.ts" ], "engine_symbol": [ "SUTHERLAND_R" ], "notes": "", "withheld": false, "withheld_hosts": [] }, { "id": "HVC-006", "category": "hvac", "material_or_item": "Rectangular duct, equivalent round diameter", "quantity": "Huebscher equivalent-diameter coefficient", "value": 1.3, "value_text": "1.30", "unit": "dimensionless", "value_si": 1.3, "unit_si": "dimensionless", "condition": "Deq = 1.30 (ab)^0.625 / (a+b)^0.250", "source": { "publisher": "McGill AirFlow", "title": "Engineering Design Advisory #1, Duct design", "url": "https://www.mcgillairflow.com/pdf/cas/designAdvisory01.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-26", "date_opened_unix": 1790380800, "used_by_tool_url": [ "https://takeoffmetric.com/hvac/duct-calculator/" ], "engine_file": [ "site/src/data/reference/duct.ts" ], "engine_symbol": [ "HUEBSCHER_K" ], "notes": "Dimensionally consistent: the same coefficients hold in inches or millimetres.", "withheld": false, "withheld_hosts": [] }, { "id": "HVC-007", "category": "hvac", "material_or_item": "Rectangular duct, equivalent round diameter", "quantity": "Huebscher exponent on (a x b)", "value": 0.625, "value_text": "0.625", "unit": "dimensionless", "value_si": 0.625, "unit_si": "dimensionless", "condition": "Deq = 1.30 (ab)^0.625 / (a+b)^0.250", "source": { "publisher": "McGill AirFlow", "title": "Engineering Design Advisory #1, Duct design", "url": "https://www.mcgillairflow.com/pdf/cas/designAdvisory01.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-26", "date_opened_unix": 1790380800, "used_by_tool_url": [ "https://takeoffmetric.com/hvac/duct-calculator/" ], "engine_file": [ "site/src/data/reference/duct.ts" ], "engine_symbol": [ "HUEBSCHER_P" ], "notes": "Dimensionally consistent: the same coefficients hold in inches or millimetres.", "withheld": false, "withheld_hosts": [] }, { "id": "HVC-008", "category": "hvac", "material_or_item": "Rectangular duct, equivalent round diameter", "quantity": "Huebscher exponent on (a + b)", "value": 0.25, "value_text": "0.250", "unit": "dimensionless", "value_si": 0.25, "unit_si": "dimensionless", "condition": "Deq = 1.30 (ab)^0.625 / (a+b)^0.250", "source": { "publisher": "McGill AirFlow", "title": "Engineering Design Advisory #1, Duct design", "url": "https://www.mcgillairflow.com/pdf/cas/designAdvisory01.pdf", "type": "manufacturer_datasheet" }, "date_opened": "2026-09-26", "date_opened_unix": 1790380800, "used_by_tool_url": [ "https://takeoffmetric.com/hvac/duct-calculator/" ], "engine_file": [ "site/src/data/reference/duct.ts" ], "engine_symbol": [ "HUEBSCHER_Q" ], "notes": "Dimensionally consistent: the same coefficients hold in inches or millimetres.", "withheld": false, "withheld_hosts": [] } ], "count": 148, "dataset_version": "1.2.0", "generator": "go run (github.com/tresor4k/takeoffmetric-go, dataset 1.2.0)", "searches": [ { "query": "bank density", "ids": [ "AGG-002", "AGG-005", "AGG-007", "AGG-008", "AGG-010", "AGG-013", "AGG-015", "AGG-017", "AGG-019", "AGG-021", "EW-001", "EW-005", "EW-009", "EW-013", "EW-017", "EW-018" ] }, { "query": "rebar weight", "ids": [ "REB-002", "REB-004", "REB-006", "REB-008", "REB-010", "REB-012" ] }, { "query": "QUIKRETE", "ids": [ "CON-001", "CON-002", "CON-003", "CON-004", "CON-005", "CON-006" ] }, { "query": "nist lumber", "ids": [ "LUM-002", "LUM-003", "LUM-004", "LUM-005", "LUM-006", "LUM-007", "LUM-008", "LUM-009", "LUM-010", "LUM-011", "LUM-012", "LUM-013", "LUM-014", "LUM-015", "LUM-016" ] }, { "query": "asphalt", "ids": [ "ASP-001", "ASP-002", "ASP-003", "ASP-004" ] }, { "query": "", "ids": [] }, { "query": " ", "ids": [] } ], "sources": [ { "publisher": "APA - The Engineered Wood Association", "title": "Advanced Framing Construction Guide, Form No. M400A", "url": "https://constructioninstruction.com/wp-content/uploads/2020/11/APA-Advanced-Framing-Construction-Guide.pdf", "type": "trade_association" }, { "publisher": "Asphalt Institute", "title": "Engineering FAQs", "url": "https://www.asphaltinstitute.org/engineering/engineering-faqs/", "type": "trade_association" }, { "publisher": "Caterpillar", "title": "Material Density Tables To Help Estimate Earthwork Volumes", "url": "https://www.cat.com/en_US/articles/ci-articles/earthwork-volumes-reference-tables.html", "type": "manufacturer_datasheet" }, { "publisher": "Clemson University Home & Garden Information Center", "title": "Lawn Establishment", "url": "https://hgic.clemson.edu/factsheet/lawn-establishment/", "type": "other" }, { "publisher": "Clemson University Home & Garden Information Center", "title": "Topdressing a Home Lawn", "url": "https://hgic.clemson.edu/factsheet/topdressing-a-home-lawn/", "type": "other" }, { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "TEK 04-02A, Estimating Concrete Masonry Materials", "url": "https://www.cmha.org/resource/tek-04-02a/", "type": "trade_association" }, { "publisher": "Concrete Masonry & Hardscapes Association (CMHA)", "title": "Tech Spec 10, Application Guide (2022)", "url": "https://www.cmha.org/wp-content/uploads/2023/12/TechSpec10-ApplicationGuide2022.pdf", "type": "trade_association" }, { "publisher": "FHWA Federal Lands Highway", "title": "Project Development and Design Manual, Earthwork Design, Exhibit 5.1 A", "url": "https://highways.dot.gov/federal-lands/pddm/dpg/earthwork-design", "type": "federal_public_domain" }, { "publisher": "Federal Highway Administration (FHWA)", "title": "FHWA-HRT-05-057, Appendix C", "url": "https://www.fhwa.dot.gov/publications/research/infrastructure/bridge/05057/appc.cfm", "type": "federal_public_domain" }, { "publisher": "GAF", "title": "FeltBuster Synthetic Roofing Felt, sell sheet (RESUL183), contractor copy", "url": "https://www.thrushandson.com/wp-content/uploads/FeltBuster-1.pdf", "type": "manufacturer_datasheet" }, { "publisher": "GAF", "title": "Pro-Start Starter Strip Shingle, sell sheet (RESGN546-0723), distributor copy (Fransyl)", "url": "https://www.fransyl.com/DATA/PRODUIT/PDF_en/2638_en~v~pro-start-starter-strip-shingle.pdf", "type": "manufacturer_datasheet" }, { "publisher": "GAF", "title": "Seal-A-Ridge Ridge Cap Shingles, sell sheet (RESHR112), archived copy", "url": "https://web.archive.org/web/20250709161926/https://www.gaf.com/en-us/document-library/documents/data-sheets/seal-a-ridge-ridge-cap-shingles-sell-sheet-reshr112.pdf", "type": "manufacturer_datasheet" }, { "publisher": "GAF", "title": "Timberline HDZ Shingles, specification sheet (RESGN467HDZ), archived copy", "url": "https://web.archive.org/web/2024/https://www.gaf.com/en-us/document-library/documents/specifications/timberline-hdz-shingles-spec-sheet-resgn467hdz.pdf", "type": "manufacturer_datasheet" }, { "publisher": "Liu, Long & Chen (2012), HVAC&R Research, ASHRAE RP-1493", "title": "Duct fittings study, surface roughness of galvanized steel as provided by ASHRAE", "url": "https://engineering.purdue.edu/~yanchen/paper/2012-10.pdf", "type": "other" }, { "publisher": "Marenakos Rock Center", "title": "Conversion and coverages", "url": "https://marenakos.com/conversion-and-coverages/", "type": "supplier" }, { "publisher": "McGill AirFlow", "title": "Engineering Design Advisory #1, Duct design", "url": "https://www.mcgillairflow.com/pdf/cas/designAdvisory01.pdf", "type": "manufacturer_datasheet" }, { "publisher": "Michigan State University Extension", "title": "E2910, Establishing a new lawn using seed", "url": "https://www.canr.msu.edu/resources/establishing_a_new_lawn_using_seed_e2910", "type": "other" }, { "publisher": "Minnesota Asphalt Pavement Association", "title": "Asphalt calculator", "url": "https://www.asphaltisbest.com/asphalt-calculator", "type": "trade_association" }, { "publisher": "NASA Glenn Research Center", "title": "Viscosity of air, Sutherland's formula", "url": "https://www.grc.nasa.gov/www/k-12/airplane/viscosity.html", "type": "federal_public_domain" }, { "publisher": "National Concrete Masonry Association (republished by R.I. Lampus)", "title": "NCMA TEK 2-1B, Typical Sizes and Shapes of Concrete Masonry Units", "url": "https://www.lampus.com/files/Resources/NCMA-TEK-02-01B.pdf", "type": "trade_association" }, { "publisher": "National Institute of Standards and Technology (NIST)", "title": "American Softwood Lumber Standard PS 20-25, Table 3", "url": "https://www.nist.gov/system/files/documents/2024/12/11/PS%2020-25%20Final.pdf", "type": "federal_public_domain" }, { "publisher": "National Ready Mixed Concrete Association (NRMCA)", "title": "CIP 6, Joints in Concrete Slabs on Grade", "url": "https://www.nrmca.org/wp-content/uploads/2021/01/06pr.pdf", "type": "trade_association" }, { "publisher": "North Bay Materials", "title": "Cubic Yard to Tons material calculator and density chart", "url": "https://www.northbaymaterials.com/landscape-material-density-calculator", "type": "supplier" }, { "publisher": "Nucor", "title": "Steel Rebar (product page, FAQ)", "url": "https://nucor.com/products/rebar/", "type": "manufacturer_datasheet" }, { "publisher": "Oregon State University Extension Service", "title": "10-Step Guide to Installing Pavers", "url": "https://extension.oregonstate.edu/sites/extd8/files/documents/1/howtoinstallpavers.pdf", "type": "other" }, { "publisher": "Pacific Northwest National Laboratory / U.S. DOE Building America Solution Center", "title": "Measuring Mechanical Ventilation Airflow", "url": "https://basc.pnnl.gov/resource-guides/measuring-mechanical-ventilation-airflow", "type": "other" }, { "publisher": "QUIKRETE", "title": "Concrete Mix No. 1101 data sheet", "url": "https://www.quikrete.com/pdfs/data_sheet-concrete%20mix%201101.pdf", "type": "manufacturer_datasheet" }, { "publisher": "QUIKRETE", "title": "Fast-Setting Concrete Mix No. 1004 data sheet", "url": "https://www.quikrete.com/pdfs/data_sheet-fast%20setting%20concrete%20mix%201004-50.pdf", "type": "manufacturer_datasheet" }, { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 341", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s341.pdf", "type": "other" }, { "publisher": "Texas Department of Transportation", "title": "2024 Standard Specifications, Item 440, Table 1", "url": "https://ftp.txdot.gov/pub/txdot-info/cmd/cserve/specs/2024/standard/s440.pdf", "type": "other" }, { "publisher": "Trex Company", "title": "Trex 2026 Decking Installation Guide (copy hosted by The Home Depot)", "url": "https://images.thdstatic.com/catalog/pdfImages/bd/bd0b6ac7-924e-452a-be97-a1d9ecc32864.pdf", "type": "manufacturer_datasheet" }, { "publisher": "University of Maryland Extension", "title": "Soil to fill raised beds", "url": "https://extension.umd.edu/resource/soil-fill-raised-beds", "type": "other" }, { "publisher": "University of Missouri Extension", "title": "G5050, How to Measure Lumber (board foot definition)", "url": "https://extension.missouri.edu/publications/g5050", "type": "other" }, { "publisher": "Utah State University Extension", "title": "Raised Bed Gardening", "url": "https://extension.usu.edu/yardandgarden/research/raised-bed-gardening", "type": "other" } ], "withheld_count": 55 }