Free tool · No signup
Board feet calculator
Total board feet for a lumber order. Standard board-foot definition: thickness (in) × width (in) × length (ft) ÷ 12.
Total board feet
240.0 BF(12.00 BF/pc × 20)
Formula: thickness × width × length ÷ 12 per piece, × quantity.
Uses nominal dimensions (2×6 is 2″×6″ for BF math even though actual rough size is 1.5″×5.5″). Hardwood billing sometimes uses surfaced dimensions — confirm with your supplier.
Built by Forward
Forward runs board-feet, stud count, joist count, drywall sheets, concrete yards, NEC + IBC + IMC calcs over text.