Calculate board feet — the standard volume unit lumber is priced and sold by.
How It Works
How Board Foot Calculator Works
A board foot is the volume of a board 1 inch thick, 12 inches wide, and 12 inches long — the calculator multiplies your board's thickness, width, and length (in inches and feet respectively) and divides by 12 to convert into that standard unit.
Worked Example
See It In Action
A board 1 inch thick, 12 inches wide, and 8 feet long equals exactly 8 board feet.
FAQ
Frequently Asked Questions
Why does lumber use board feet instead of just square footage?
Board feet account for thickness as well as width and length, which matters because lumber is sold in varying thicknesses — square footage alone would treat a 1-inch board the same as a 2-inch board of the same face dimensions.
