Skip to main content
Change Line/Curve Seam Allowance Tool Icon

Change Line/Curve Seam Allowance Tool

What it Does​

Changes the seam allowance width of the lines and curves you choose. A seam allowance is the extra fabric outside the sewing line. Use this tool when an edge needs a different width than the General default, such as a neckline, an armhole or a hem.

You can pick one of the three defaults or type a custom width. Only the lines and curves you select are changed. All others keep their current width.

To learn more about why seam allowance widths differ, see Seam Allowances in the Academy.

How to Use​

  1. Activate the tool by clicking the Change Line/Curve Seam Allowance icon.
  2. Select the change method, then select Continue:
    • Individual Line / Curve: change one edge at a time.
    • Multiple Lines / Curves: change several edges at once.
  3. Select the line or curve to change, or all the lines and curves to change, then select Continue.
  4. Choose the new seam allowance:
    • General Default
    • Neckline Default
    • Armhole Default
    • Custom Value
  5. If you chose Individual Line / Curve, the toolbox tells you the seam allowance the selected edge has now. To check a different edge, select it, then select Refresh.
  6. Select Continue. If you chose a default, the change is saved right away and you are done.
  7. If you chose Custom Value, enter the seam allowance width in the unit shown, then select Save.
tip

Choose from the defaults whenever you can. Edges that will be sewn together then have the same seam allowance. You can change the defaults with the Set Seam Allowance Defaults tool.