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Board footage calculator

A board foot is 144 cubic inches of wood: a board 1 inch thick, 12 inches wide and 1 foot long.

Calculate by

Enter the length of each board and the number of pieces. Use the thickness and width for your lumber tally in inches.

Pieces10

80.00board feet

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Common sizes

A nominal size names the board; the dressed size is what it measures once surfaced. Board feet are counted from the nominal size.

Nominal lumber sizes, their approximate dressed sizes in inches, and board feet per foot of length
NominalDressedBoard feet per foot
1×4¾″ × 3½″0.33
1×6¾″ × 5½″0.50
1×8¾″ × 7¼″0.67
1×10¾″ × 9¼″0.83
1×12¾″ × 11¼″1.00
2×41½″ × 3½″0.67
2×61½″ × 5½″1.00
2×81½″ × 7¼″1.33
2×101½″ × 9¼″1.67
2×121½″ × 11¼″2.00
4×43½″ × 3½″1.33
4×63½″ × 5½″2.00
6×65½″ × 5½″3.00