Board Foot Calculator
Calculate lumber board feet from thickness, width, length, quantity and optional waste.
Why use this board foot calculator?
Board Foot Calculator applies the standard lumber formula using thickness and width in inches and length in feet.
Example
A 1 × 8 × 10 ft board is 6.67 board feet; multiply by quantity for the project total.
Important note
Nominal and actual dressed lumber dimensions differ. Use the dimensions relevant to how your supplier prices lumber.
How to use it
Start with the inputs shown above, review the assumptions or options, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is Board Foot Calculator free?
Yes. The core tool is free to use without creating an account.
Do I need an account to use Board Foot Calculator?
No. You can use the core Toolbox workflow without signing up.
Does Board Foot Calculator work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers, although complex file workflows can be easier on a larger screen.