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Lumber Calculator

Calculate board feet and costs for lumber projects. Supports dimensional lumber, plywood, and hardwoods.

Lumber Specifications

Number of Boards*

Board Length*

m

Board Width (actual)*

cm

Board Thickness (actual)*

cm

Price per Board Foot

$

Pro Tips from the Workshop

•Board foot = 144 cubic inches (1ft × 1ft × 1in)
•Dimensional lumber (2×4) is actually 1.5×3.5 inches
•Hardwood prices vary widely - oak, maple, walnut range $3-12/bf
•Always buy extra - wood has knots, warps, and defects

Ready to Calculate

Calculate board feet and costs for lumber projects. Supports dimensional lumber, plywood, and hardwoods.

Lumber Calculation

Lumber is priced by board feet, a volume measurement:

Board feet = (thickness × width × length) ÷ 144
Multiply board feet by number of boards
Multiply total board feet by price per board foot