Thanks for all the suggestions. . .now that I look at them 6 of the 16 are 12.5 on the dot. Those are the ones I made with my rulers. The other are all about 12 to 12 1/4 so just a tad short.
Do you think a boarder that small around the 10 blocks would look funny? Or should I put a boarder around all of them at maybe 13?
I thought about the on point. But some of these blocks loose their look on point. . .too bad since I really do like that look better :)