CutlistBoard foot calculator
Enter actual board dimensions to total the volume, waste allowance and optional cost.
Saved only in this browser. Inputs stay in this tab’s session storage and are not transferred to the app.
Example calculation
Board foot calculator: worked out from the values already filled in the form above.
Inputs
- Measurements in: Millimetres
- Waste allowance (%): 15
- Price per output unit (optional): 0
- Your measurements: Thickness 25 · Width 150 · Length 2,400 · Quantity 3
Result
- Net volume: 11.442 bf
- Required: 13.158 bf
How the calculation works
Use measured thickness and width, not the nominal label on the rack. One board foot is a volume of 144 cubic inches; the board does not have to be one foot long. Each row multiplies that volume by its quantity, then the rows are added together.
Example: a board measuring 1½ × 3½ × 96 inches contains 3.5 BF. Four boards contain 14 BF. A 10% buying allowance raises the purchase estimate to 15.4 BF; it does not change the net volume in the finished pieces.
Related tools
Lumber cost and waste
Include a waste allowance in the volume you buy and estimate cost using your own unit price.
02Cubic feet of lumber
Calculate CFT from actual dimensions, with the same inputs available in metric or inches.
03Nominal and actual lumber sizes
A nominal 2 × 4 is not normally 2 inches by 4 inches. Check the actual dimensions for the stock you buy.