Board Foot Calculator — Calculate Lumber Volume in Board Feet

Board Foot Calculator — Calculate Lumber Volume in Board Feet

Convert lumber dimensions to board feet for pricing, ordering, and project planning with hardwood and softwood lumber.

📏 Board Foot Calculator

BF per Board
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Total Board Feet
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Est. Cost ($4/BF hardwood)
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💡 Pro Tip

When buying rough-sawn hardwood, add 25–30% to your board foot calculation to account for milling losses (jointing, planing, ripping) before your wood reaches finished size.

Frequently Asked Questions

Q: How do you calculate board feet?

Board Feet = (Thickness in inches × Width in inches × Length in inches) ÷ 144. Or: (Thickness × Width × Length in feet) ÷ 12.

Q: Why is hardwood sold in board feet?

Board feet measure actual volume of wood. Since hardwoods come in random widths and thicknesses (unlike standardized framing lumber), board feet allow fair pricing regardless of board dimensions.

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