Board Foot Calculator
Calculate board feet for lumber. Enter length, width, thickness, and quantity.
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💡 Did you know? Saving this calculation connects it to our Project Planner, allowing you to bundle multiple estimates (concrete, paint, tile, etc.) into a unified shopping list with shared measurements.
Results
Board Feet4.00
Cubic Feet0.333
Cubic Yards0.0123
Frequently Asked Questions
What is a board foot?
A board foot is a unit of lumber volume equal to 1 ft x 1 ft x 1 inch thick (144 cubic inches).
How many board feet in a 2x4x8?
(8 x 2 x 4) / 12 = 5.33 board feet. Note: uses nominal dimensions.
What's the difference between board foot and linear foot?
Board foot measures volume (length x width x thickness). Linear foot measures only length.