Oh, this was made a long time ago. I can't remember! I'll give it a stab though. These will be finished sizes, so you would add 1/2" to the square to get a 1/4" seam.
I think I used Thangles on this- the 2.5" ones, so each block was 10", the centers were 5". The little strips around the block were 1", so each block totalled 12". That would make the finished size about 48" x 60". (I tend to make pretty big baby quilts. Then they can keep using them into toddler/preschool age.)
Hope that helps! Glad you like it!
Thanks everyone!