Originally Posted by quilt crazee
if the center finishes at 64, a 2.5 strip on each side will increase the size by 4", not just 2". AM I missing something?
You're right, it would increase it by 4" each way.
So instead of 2.5" border you'd need 1.5" border
which would then add 1" to top/bottom and each side resulting in a 66.5" unfinished center