FREE ONLINE CALCULATOR

Board Feet Calculator

Calculate total lumber board feet and cubic feet for rectangular stock.

✓ Instant results ✓ Editable inputs ✓ Formula explained

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CONSTRUCTION · TOOLS

MEASURE Enter project dimensions

ESTIMATE Calculate material volume

PLAN Check practical assumptions

CALCULATION TOOL

Board Feet Calculator

Change any value and calculate again.

Uses the values you enter. No account required.

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ABOUT THIS TOOL

When to use a board feet calculator

Calculate total lumber board feet and cubic feet for rectangular stock.

All assumptions are visible and adjustable. Check rates and underlying data against original sources before making a decision.

HOW IT WORKS

The calculation

Board feet = board count × thickness (in) × width (in) × length (ft) / 12.

Read the full guide →

ASSUMPTIONS

Know the limitations

Use nominal lumber dimensions where pricing is sold by board foot, not actual finished dimensions.

Results are estimates derived from your inputs.