Board feet calculator

Board Feet Calculator (2026)

How many board feet of lumber do I need? Inputs nominal thickness (in), width (in), length (ft), and pieces — covers any species or stock size from 2x4 studs to 4x4 posts. Optional $/bf pricing returns a one-line cost. Free, mobile-first.

Inputs
Board dimensions
in
in
ft
pcs

Pricing

$/bf
Lumber order

Enter thickness, width, length, and piece count above to see board feet and cost.

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