Woodworking calculator
Saw Kerf Calculator
See how much stock the blade removes, whether the planned parts fit, and how much material remains.
What the result means
The blade turns part of the stock into sawdust. That missing material has to be included in the cut plan, along with any damaged or trimmed ends.
Formula
Required stock = total part length + total kerf loss + end trim
Common mistakes
- Using blade plate thickness instead of the actual width of the cut.
- Forgetting a cleanup cut at the first end.
- Assuming every cut will land exactly on the mark.
- Leaving no room for a damaged end, a knot, or a bad cut.
Before you use the result
This calculator performs the math using the information you enter. Check the measurements and make sure the result fits the actual project before cutting, buying materials, or putting anything into service.