Calculate board feet from lumber dimensions. Board feet is the standard unit for pricing hardwood and specialty lumber. Enter the thickness, width, and length of your boards along with the quantity to get total board footage for your project.
Enter Your Measurements
Results
Total Board Feet
53.33
BF
Board Feet per Piece
5.33
BF
Total Linear Feet
80
ft
Total Surface Area
53.3
sq ft
Formula
How to Use This Calculator
How to Use
- 1
Enter the board thickness in inches (use actual dimensions, not nominal).
- 2
Enter the board width in inches.
- 3
Enter the board length in feet.
- 4
Enter the number of boards.
Frequently Asked Questions
Frequently Asked Questions
What is a board foot?
Do you use nominal or actual dimensions for board feet?
How much does a board foot of lumber cost?
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About This Calculator
This calculator uses the formula: Board Feet = (Thickness in × Width in × Length ft) ÷ 12. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.
Built and maintained by the CalcSmart team. Last updated March 2026.
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