Free metal cut list calculator — steel and aluminium profiles
Plan straight cuts for one profile size at a time. Enter full lengths and usable offcuts together, then check the cutting plan before taking it to the saw.
Worked example: a full length and an offcut
Choose millimetres. Add one 6000 mm length and one 2000 mm offcut, each with available quantity 1. Set kerf to 3 mm and end trim to 5 mm per end. These are example allowances: measure your own stock and actual cut width.
| Part name | Length (mm) | Quantity |
|---|---|---|
| A | 4500 | 1 |
| B | 1800 | 1 |
Check the result
Part A fits the 6000 mm length and leaves 1487 mm. Part B fits the 2000 mm offcut and leaves 187 mm. Across both lengths: 6300 mm of finished parts + 6 mm of kerf + 20 mm of end trim + 1674 mm of offcuts = 8000 mm.
Prepare your workshop sheet
Copy the dimensions and quantities from your drawing or parts table. Keep the drawing references in Part name so they appear on the printed plan. For a spreadsheet, open CSV format and example above and download the template. Import replaces the parts list, so save your current order first if you need it.
What this calculation does not decide
Run different cross-sections, wall thicknesses and materials separately. This is a straight-cut length planner, not a sheet nesting or miter calculator. It aims to minimize total stock length; it does not distinguish owned stock from purchases or guarantee that existing offcuts are used first. Check the offcuts before reusing them: stock is not updated automatically.
How to use it
Enter the stock lengths and available quantities, blade kerf and end trim. Add each part length, quantity and optional name, or import a CSV. Calculate, check the offcuts, then print the workshop sheet. Save an order file to move it to another browser.
How are kerf and end trim counted?
End trim is removed from both ends of each stock piece. Between parts, a cut consumes the blade-width kerf. At the stock end, only the material remaining beyond the finished part is removed, up to one kerf; an exact fit needs no cut. Parts, kerf, trim and offcut are counted separately.