Is that a 6" block before its sewn with a 1 /2 seam allowance?
I use 6 1 /2 inch squares for a twin, just blocks butting them together and I need 10 x 14= 140. Thats including the 1 /2 seam allowance.
I want to do a quilt like your talking about with the block being framed.
Enjoy the process.
simple quilter