Originally Posted by romanojg

If you are trying to make sure all of the blocks are the same size the first thing you do is yes find the center which would be at the 5 1/4; then make sure the top/bottom and both sides of the ruler are at the same 5 1/4 so you are "centered" and then trim anything outside of that area. You need to have a 10 1/2 or larger ruler to do it right. If you don't center it before you square it your block won't be even all around.