HOW IT IS CALCULATED
Calculate lumber in board feet
Combine piece count, thickness, width and length using the standard board-foot relationship.
Instant resultClear formulaRuns locally
01Values
02pieces × thickness(in) × width(in) × length(ft) ÷ 12
03Result
1 × 1 in × 6 in × 8 ft = 4 board feet
Board foot measures volume, not length
Boards with the same length can represent very different board-foot volumes if width or thickness changes.
02
In short
What logic does the calculator use?
pieces × thickness(in) × width(in) × length(ft) ÷ 12
Example?
1 × 1 in × 6 in × 8 ft = 4 board feet