Measure all your squares before you cut or starch. They may not be equal to start. The manufacturer told me they are meant to be trimmed down when I complained. Mine measured anywhere from 9.7/8 to 10.1/4. I did not realize the differences until I cut and snowballed the corners and nothing was matching. I measured the squares I had left and many were not 10". If you are soaking the pieces with best press, they also could be shriking.