How this board foot calculator works
Board feet = thickness in inches × width in inches × length in feet ÷ 12, multiplied by quantity.
How to use it
- Board thickness. Enter the value in in.
- Board width. Enter the value in in.
- Board length. Enter the value in ft.
- Quantity. Enter the value in boards.
- Request the result. Add your email, then select “Email & show my result.”
What to do with the number
Board-foot volume is commonly used to compare rough lumber quantities even when actual dressed dimensions are smaller than nominal dimensions. For mixed sizes, calculate each size group separately and add the board-foot totals.
Planning estimate
Use this result as a starting point, not a guarantee. Product specifications, site conditions, manufacturer guidance, local codes, taxes, labor, tolerances, and rounding can change the real requirement or cost.