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.

Number of boards (required) Count of identical boards in this line item. Use 0 only to clear the calculation.

Thickness (in) (required) Enter the actual or quoted thickness in inches. A dressed 2x board is often 1.5 in thick.

Width (in) (required) Enter the actual or quoted width in inches. A dressed 2x6 is often 5.5 in wide.

Length (ft) (required) Board length in feet. If your length is in inches, divide by 12 first.

Waste / overage (%) Optional planning buffer for cuts, defects, and mistakes. Many projects use 10–15%.

Price Optional lumber price. Leave blank to skip the cost estimate.

Price unit 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.