Construction

Lumber Calculator

Estimate lumber volume in board feet, MBFT, and lineal feet from board dimensions, quantity, optional waste, and BF/MBFT pricing.

Important: Informational only. Double-check any value that affects a real decision before acting on it.
Inputs

Adjust your numbers

Results update as you type.

Count of identical boards in this line item. Use 0 only to clear the calculation.
Enter the actual or quoted thickness in inches. A dressed 2x board is often 1.5 in thick.
Enter the actual or quoted width in inches. A dressed 2x6 is often 5.5 in wide.
Board length in feet. If your length is in inches, divide by 12 first.
Optional planning buffer for cuts, defects, and mistakes. Many projects use 10–15%.
Optional lumber price. Leave blank to skip the cost estimate.
Use per board foot for retail quotes or per MBFT for wholesale-style quotes.
Results

Live answer

Order board feet
Net board feet
Board feet per board
Order MBFT
Lineal feet
Waste / overage
Estimated cost
How it works

Adds the board-foot, MBFT, and lineal-foot outputs seen in the research bundle, plus optional waste and per-BF/per-MBFT pricing without turning the page into a full building-materials estimator.