🪚
Lumber Calculator
Board feet and piece counts for dimensional lumber.
Enter your details
Results
Total Board Feet
—
Board Feet per Piece
—
How to use the Lumber Calculator
Board feet = thickness(in) × width(in) × length(ft) ÷ 12. Enter nominal dimensions.
Frequently Asked Questions
A '2×4' is actually 1.5×3.5 inches after surfacing. Board-foot math traditionally uses nominal sizes.