Board Foot Calculator
Calculate total board feet for dimensional lumber or rough-sawn boards.
Project details
Estimate
Board feet per piece—
Total board feet—
Planning estimate only. Confirm product dimensions, package coverage and project requirements before purchasing.
What is a board foot?
A board foot is a volume measure equal to a board 1 inch thick, 12 inches wide and 1 foot long.
board feet = thickness(in) × width(in) × length(ft) ÷ 12
Board-foot measurement is different from linear feet and square feet.
Board Foot Calculator FAQ
Is a 2×4 exactly 2 by 4 inches?
Finished dimensional lumber is commonly smaller than nominal size.
Can I calculate multiple identical boards?
Yes. Enter the number of pieces.
Is board foot the same as square foot?
No. Board feet measure volume; square feet measure area.