BOM Cost Roll-Up & Unit Cost Template
Rolls a multi-level bill of materials with scrap into sub-assembly and unit cost, adds labour routing and overhead, and shows margin at list price.
BOM Cost Roll-Up & Unit Cost Template is a free Excel workbook: 5 sheets, 91 live formulas and realistic sample data throughout, 16 KB as .xlsx.
The formulas are printed on this page, unedited, so you can check the method before downloading anything. Swap in your own numbers and the whole file recalculates — which is the part no chat window can hand you. Opens in Excel, Google Sheets, Numbers and LibreOffice; no add-in and no macro.
A look inside
This is a real slice of the BOM sheet from the actual file — not a screenshot, and not a mock-up. Cells shown in violet are live formulas, exactly as they arrive.
| # | Part | Description | Parent assembly | Qty per | Unit cost | Scrap % | Extended cost |
|---|---|---|---|---|---|---|---|
| 3 | ST-TUBE-25 | Steel tube 25mm (m) | SA-FRAME | 6.40 | £3.20 | 4.0% | =D3*E3*(1+F3) |
| 4 | ST-PLATE | Steel end plate | SA-FRAME | 2 | £4.75 | 2.0% | =D4*E4*(1+F4) |
| 5 | WELD-WIRE | Weld wire (kg) | SA-FRAME | 0.30 | £9.80 | 5.0% | =D5*E5*(1+F5) |
| 6 | PWD-COAT | Powder coat (m2) | SA-FRAME | 1.80 | £6.10 | 3.0% | =D6*E6*(1+F6) |
| 7 | OAK-SLAT | Oak slat 1800mm | SA-SEAT | 9 | £6.40 | 6.0% | =D7*E7*(1+F7) |
| 8 | OIL-FIN | Finishing oil (l) | SA-SEAT | 0.25 | £14.00 | 2.0% | =D8*E8*(1+F8) |
| 9 | SCREW-SS | Stainless screw 5x40 | SA-SEAT | 36 | £0.08 | 3.0% | =D9*E9*(1+F9) |
| 10 | BOLT-M8 | M8 x 60 bolt | SA-HW | 8 | £0.22 | 2.0% | =D10*E10*(1+F10) |
What’s in the file
What it explains
- Scrap is a cost, not a percentage
- Roll-up goes from the bottom
- Markup and margin are not the same number
Download it
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<a href="https://www.datahubpro.co.uk/excel-templates/manufacturing-bom-cost-rollup">BOM Cost Roll-Up & Unit Cost Template</a> — free Excel template from DataHub Pro
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