Board Foot Calculator
Board feet (and m³) for a lumber list, with cost.
Runs in your browser — nothing is uploaded—
Details
Material estimates only — add waste, confirm quantities with your supplier and follow local building codes. Not an engineering guarantee.
How to use Board Foot Calculator
- Enter your values — the unit for each field is shown next to it.
- The result updates instantly as you type.
- Copy the results, or change inputs to compare scenarios.
Formula & assumptions
Board feet = thickness (in) × width (in) × length (ft) ÷ 12