Formula used
Board feet = thickness (in) × width (in) × length (ft) × pieces ÷ 12
Worked board foot example
Board Foot Calculator example: 1 in × 6.7 in × 5.8 ft × 13 pieces ÷ 12 = 42.1 board feet. At 4.5 per board foot, the estimate is 189.44.
Interpret the piece or volume result
Compare the computed board-foot total with the supplier's tally, but order the required pieces and cutting allowance rather than volume alone.
Cuts, defects, and stock-length effects
Random widths and lengths, live edge, surfacing, defects, moisture, and seller tally rules can make invoice board feet differ from a simple rectangular tally.
Questions specific to this calculation
What exactly is one board foot?
Use thickness and width in inches, length in feet, and the number of pieces; confirm whether the yard prices rough nominal stock or surfaced dimensions.