Account for resaw kerf and surfacing allowances.
Why is blank thickness divided by finished thickness an optimistic resaw yield?
Use the matching calculator
Use this decision sequence
- Use the measured blank thickness.
- Add supplied surfacing allowance to every resulting board.
- Include saw kerf between source cuts under the stated uniform model.
- Round feasible board yield down and source blanks up.
Keep the quantities distinct
| Quantity or assumption | How to use it |
|---|---|
| Finished thickness | The useful resulting board dimension. |
| Surfacing allowance | Additional material consumed per board. |
| Saw kerf | Material removed by the cut. |
Worked comparison
A 50 mm blank, 10 mm finished boards, 2 mm surfacing allowance per board and 3 mm kerf gives floor((50+3)/(10+2+3)) = 3 boards per blank. Ten finished boards need 4 blanks.
Check before using the estimate
This dimensional yield does not assess grain, defects, moisture movement or machine suitability.
All dimensions, product properties, prices and specifications in this example are illustrative arithmetic inputs. Use the values from your measured plan, selected product data sheet and supplier quote. This guide does not choose construction specifications or certify safety.
Calculation and scope checked 2026-10-04. Methods and scope.
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