no, I have made at least 20 denim/calico rag quilts, and you don't need to add stitching or ties in each block unless your squares are really big. I cut mine 6 1/2". Some of the quilts are 10 years old, used by boys and laundered frequently. Some of the calicos are wearing thin, but otherwise there have been no problems. The guys love them. My youngest has his at college with him.