CutlistCubic feet of lumber
Calculate CFT from actual dimensions, with the same inputs available in metric or inches.
Saved only in this browser. Inputs stay in this tab’s session storage and are not transferred to the app.
Example calculation
Cubic feet of lumber: 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: 0.953 cft
- Required: 1.097 cft
How the calculation works
Cubic feet measure solid volume. A cubic foot contains 1728 cubic inches, or twelve board feet. The calculator converts metric measurements before applying the same volume relationship.
A 1½ × 3½ × 96 inch board is about 0.292 CFT. This is the volume of the wood itself. It does not include gaps between stacked boards, packaging or a delivery vehicle’s unused space.
Related tools
Board foot calculator
Enter actual board dimensions to total the volume, waste allowance and optional cost.
02Lumber cubic metre calculator
Add several board sizes and quantities to get the total volume in cubic metres.
03Lumber volume in sai
Calculate timber volume in the Japanese sai unit. Confirm the unit used by your supplier before ordering.