I just finished one not to long ago.I'm not sure exactly i think i used 3 1/2 yds for outside corners,the same for the other 4 squares and i don't remember the one square in the middle.I cut the blocks 5 inches each.I think the blocks came out 11 1/2 or 12 inches.I made a full size.I have a picture of the quilt if you want to see it.Connie in CO