Lumber Board Feet Calculator
Board feet from length, width, thickness
📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
Board feet calculator
Calculate lumber board feet. Essential for framing and woodworking.
How to use this tool
- 1
Enter board dimensions
Thickness × width × length of each piece.
- 2
Enter quantity
Number of identical pieces.
- 3
See board feet
Standardized lumber measurement.
Frequently Asked Questions
What is a board foot?
One board foot = 144 cubic inches of wood (1" × 12" × 12" = 144 in³). Formula: (T × W × L) / 144 when T, W in inches, L in feet.
Nominal vs actual
A "2×4" is actually 1.5" × 3.5" after planing. Use nominal for board feet pricing, actual for fit.
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