CONSTRUCTION TOOL

Board Foot Calculator

Calculate lumber board feet from thickness, width, length and board quantity.

FREE ONLINE TOOL

Thickness (in)Width (in)Length (ft)Boards

Result (board feet)

Board feet = thickness (in) × width (in) × length (ft) × quantity / 12

A board foot equals 144 cubic inches. Nominal and actual lumber dimensions can differ.

STEP BY STEP

How to use board foot calculator

IN PRACTICE

2 × 6 × 8 × 10 / 12 = 80 board feet.

GOOD TO KNOW

A board foot equals 144 cubic inches. Nominal and actual lumber dimensions can differ.