Board Foot Calculator
Board feet from thickness, width, and length.
Board feet
30.5
Worked example
Eight pieces, 25 mm thick, 150 mm wide, and 2.4 m long, are about 30.5 board feet. Thickness and width are converted from millimetres, and length from metres, into the imperial board-foot formula.
FAQ
- What is a board foot?
- A volume of 12 × 12 × 1 inch. The formula is thickness in inches × width in inches × length in feet, divided by 12.
- Why mix millimetres and board feet?
- Timber in Australia is often measured in millimetres, while board feet are still used in pricing. The page converts for you.
- Does it include waste?
- No. Multiply by the number of pieces you will cut from, not the finished count, if offcuts matter.