I'm working on a queen size one. If I recall correctly, I bought 5 yards of print, 4 yards of solid, 3/4 yard print for binding, and I used 7" squares. The D9P is only on the top of the mattress; the sides are just 10.5"x7" blocks of the prints. I had juuuuust enough, but I'd probably purchase another yard of solid if I was going to do it again (I got a little nervous when I cut my borders).