Free Board Foot Calculator
Calculate Board Feet of Lumber Instantly
e.g., 1″ or 2″
e.g., 4″, 6″, 12″
e.g., 8, 10, 12 ft
📋 Board Foot Formula
Board Feet = (T × W × L) ÷ 12 × Qty
1 board foot = 144 cubic inches (12″×12″×1″)
❓ Board Foot FAQ
How do you calculate board feet?
BF = (T\”×W\”×L’)÷12×Qty. 1\”×6\”×8′ = (1×6×8)÷12 = 4 BF.
What is a board foot?
144 cubic inches (12\”×12\”×1\”). Lumber priced per BF.
How many board feet in a 2x4x8?
Nominal: 5.33 BF. Actual (1.5\”×3.5\”): 3.5 BF.
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