What is a board foot?

A board foot is 144 cubic inches of lumber — for example a 1 in × 12 in × 1 ft board.

Does board foot use nominal or actual size?

Use nominal thickness and width (the size before planing) for pricing.

Calculate board feet from thickness, width, length, and quantity. Estimate lumber volume and total cost.

Estimates only. Round up and buy a little extra to account for waste, spills, and breakage.

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

What is a board foot?: A board foot is 144 cubic inches of lumber — for example a 1 in × 12 in × 1 ft board.
Does board foot use nominal or actual size?: Use nominal thickness and width (the size before planing) for pricing.

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