Lumber Board Footage

Total board feet from thickness, width, length, count.

Run the calculator

Example

You enter

Thickness (in) 2
Width (in) 4
Length (ft) 8
Count 10

You get

Per piece 5.33 bf
Total 53.33 bf

Details, formula, and sources

Board feet = (thickness_in × width_in × length_ft) / 12. Rough-cut nominal vs. surfaced (S4S) actual dimensions resolved via NHLA / WWPA grading rules.

NHLA / WWPA grading rules by name.

NHLA rule book licensed; WWPA standard grading rules free at wwpa.org.

Estimate. AHJ and licensed professional govern.

Field names used by the API: thickness_in, width_in, length_ft, count, board_feet_each, total_board_feet

Nominal-to-actual table 2x4 = 1.5 in × 3.5 in (S4S)WWPA standard grading rules