Board Foot calculator.
Calculate board feet from the actual dimensions and number of boards.
Your inputs
Use measurements from your plan and properties from your chosen product. Any prefilled values are illustrative.
A clear estimate starts here.
Enter your dimensions and product details to see the quantity and purchase breakdown.
Formula and assumptions
How this calculation works.
One board foot is 144 cubic inches. Enter the dimensions used by your supplier; nominal labels are not automatically converted into actual dimensions.
A worked example
Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.
- Entered board thickness
- 25.4 mm
- Entered board width
- 152.4 mm
- Board length
- 2.44 m
- Board count
- 10
Lumber volume: 40 board ft
Before you purchase
Use dimensions from your plan and properties from your chosen product. Any design spacing, section or fixing pattern must already be specified.
The calculation does not select a suitable timber section.
Method: dimensional arithmetic and user-supplied specifications. Software checks: 2026-10-04. Calculation and review policy.