Construction
Board Feet Calculator
Compute board feet of lumber for pricing and take-offs.
Inputs
Board Feet Calculator
Result
Board feet
80
- Estimated cost
- $320
How it's calculated
BF = (T · W · L) / 12 (T, W in inches; L in feet)
Board feet and stick counts
Board feet = thickness (in) × width (in) × length (ft) ÷ 12. Buy 5–10% extra for cuts, defects, and mistakes. Softwood dimensional lumber (2×4, 2×6) is nominal — a '2×4' is actually 1.5" × 3.5".
Companion tools
For slabs and footings see the Concrete Calculator; for finished surfaces, the Paint Calculator and Tile Calculator.
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