I cut the blocks at 5 1/2 inches. They were sewn with 1/4 seams and I pressed the seams open. I used the herringbone stitch to reinforce the seams so they would not separate. The blocks were sewn together in alternating directions so they would reflect the light in different ways. Using so many different types of corduroy was a challenge because some of them were very stretchy. If they got out of "whack" I just trimmed them to the size I wanted or eased them into the next block. Of course some of the corners did not match well, but the herringbone stitch helped to hide the boo boo's.