Buttonhole and button plackets
Both pieces share the selected length and finished width while carrying the marks required for their different closure roles.
Step 1
Choose a placket preset and adjust length, width, fold-under, and button spacing.
Before generating
Use the notes below to understand which measurements shape the draft, which options change construction, and what should be measured again when values conflict. Presets are starting points; the submitted values drive the result.
Both pieces share the selected length and finished width while carrying the marks required for their different closure roles.
Finished width describes the sewn placket; fold-under and seam allowance add the material required to construct it.
The first and last button offsets define the usable interval, and the remaining positions are distributed evenly within it.