Why is a waistband cut wider than it will look?
A folded waistband needs fabric for both its visible and inner faces, plus the seams used in its construction. Cutting only the intended finished width leaves those hidden parts unaccounted for. The exact allowance depends on the chosen finish, so one formula does not cover every waistband design.
Questions you could explore
- Which parts of the cut width disappear inside the finished construction?
Start reading
- New Mexico State University Cooperative Extension ServiceWaistbands Made Easy, Guide C-234
New Mexico State University explains a regular waistband’s finished width, doubled fabric, seam allowances, and alternative finishes.
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