Self-bound and felled seam (no trim method)
This is question is related to the Self-bound and felled seam method described in https://www.threadsmagazine.com/project-guides/sew-your-own-jeans/updated-jeans-jackets?discussion=comment&cid=144560#comment-144560. I’ve also seen this method demonstrated online by Janet Pray.
I am not sure whether one of the pieces must be trimmed prior to offsetting.
Will the “Self-bound and felled seam” method result in a 5/8” seam allowance? Or would there be an additional 1/4” added to the width of that part of the garment after using this method? e.g. if two 10”+5/8” pieces of fabric were joined in this way, would the final width end up being 20” (e.g., the same as if it was sewn as a normal seam with 5/8″ seam allowance) or 20 and 1/4”?
The first line of sewing is at the 5/8” mark of one piece of the fabric (the one being folded over), but I’m having trouble envisioning what happens with the 2nd line of sewing relative to the piece that was offset by 1/4”….it seems like that 1/4” is not “removed” by the sewing because the 2nd line of sewing would be on top of the 5/8” mark which leave 1/4” between the two lines.