Timber End Trim Volume calculator.
Separate purchased timber volume from usable volume after a stated end-trim allowance on each piece.
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.
Actual dimensions must be supplied. End trim is your cut plan and does not establish defect allowances or structural grading.
A worked example
Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.
- Purchased length
- 3 m
- Actual width
- 0.1 m
- Actual thickness
- 0.05 m
- Trim at each end
- 100 mm
- Stock pieces
- 10
Usable timber volume: 0.14 m³
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.
Actual dimensions must be supplied. End trim is your cut plan and does not establish defect allowances or structural grading.
Method: dimensional arithmetic and user-supplied specifications. Software checks: 2026-10-04. Calculation and review policy.