Ever wonder why you sew a perfect quarter inch seam and after putting all your pieces together for a particular block, your finished block still runs a little smaller than it was supposed to be when you square it off? Well, I’m going to explain that phenomenon to you and where I learned the answer to this question….
One of the things that always puzzled me was why would you sew a “scant” quarter inch seam. After all, a quarter inch seam is a quarter inch seam. Why would it be anything else. Right? Then a pattern or instructor throws this “scant” stuff at you. I just always accepted what to do, but wondered why? What is the difference between a quarter inch seam and a scant quarter inch and why would you use one or the other. I’ll tell you. Sometime ago I read or heard someone who answered my question. It’s because when you press your seam to one side the stitching takes up some of the space in the fabric. Sizing is especially crucial when sewing half square triangles and quarter square triangles. I didn’t believe it myself until I tried it. That is why a scant quarter inch seam is sewn a fraction to the right of where that seam should be. Continue reading “Scant Who? Generous What?”