Lumber / Board-Foot Calculator

Board feet from nominal dimensions, plus price estimate.

Calculator Construction Updated Apr 19, 2026
Piece
Board feet

Formula

Board feet
BF = (T × W × L_ft) / 12
1 BF
= 144 in³ (1×12×12 in plank)
Nominal vs actual
2×4 is really 1.5×3.5" — BF uses nominal

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