CONSTRUCTION TOOL

Board Feet to Square Feet Calculator

Convert lumber board feet into square feet using board thickness.

FREE ONLINE TOOL

Board feetThickness (in)

Result (ft²)

1,200

ft² = board feet × 12 / thickness (in)

Use actual thickness consistently. A board foot is 144 cubic inches.

STEP BY STEP

How to use board feet to square feet calculator

IN PRACTICE

100 board feet × 12 / 1 in = 1200 ft².

GOOD TO KNOW

Use actual thickness consistently. A board foot is 144 cubic inches.