Board Feet Calculator

Lumber volume in board feet.

Input Parameters

Thickness (in)

Width (in)

Length (ft)

Boards

Board feet40

Per board4

ft³3.333333333

175 available

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Board feet from thickness × width × length over 12, times board count.

Board foot formula?

T(in) × W(in) × L(ft) ÷ 12 per board.

Nominal vs actual?

Lumber yards use nominal sizes — a “2×4” counts as 2×4 here.

Cubic feet?

Divide board feet by 12.