Welt pocket builder
Choose a practical preset or set the visible opening, welt, bag, extension, construction, and allowances for your project.
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.
Keep the opening away from bulky seam intersections, darts, and edges unless the design accounts for them. Confirm that a hand can enter comfortably and that the pocket bag fits inside the garment without reaching the hem or closure.
Opening length should suit the wearer and garment scale. A decorative chest pocket may be shorter than a trouser or coat pocket. Test the intended angle and hand access on the pattern before selecting the final value.
The visible welt is only part of the strip. The cutting width also includes the folded return and seam allowances. Use the generated fold and stitching guides instead of cutting a strip equal to the visible width.