I sat down last night with graph paper and drew out the pattern--thought I might some day make this quilt since I really love the pattern---until I realized that the FINISHED 9 patch measured 1 1/2" and that the finished double 9 patch would only be 4 1/2". Too tiny for my nerves, eyes, and patience. I might still make it but I'll enlarge the pattern if I do. As long as the strips to make the 9 patches are the same size as the ones making the 4 patches enlarging it shouldn't be hard to do. The blocks would easily transpose into a 12 1/2" block.