The centers are 4-1/2" to 6-1/2" squares (accurate cutting is included in the pattern). The surrounding strips are 2-1/2" - can you say Jelly Roll?!!
The quilt is a wonderful lap size: 62" x 70"
Here's a clearer shot:
This was so beautifully quilted by Leslee Evans of Atlanta. She was a master quilter (she was an architect in her former life).
Check out the Cobblestones Quilt in my Craftsy shop. It's only $4.00 and I am itching to make it again with all my Kaffe Fassett fabrics just begging to jump in and be sewn.