I'm working on a d9p and I want to sash around the blocks. I'm going to cut my own 1 1/2'' strips. I want the border all the way around to be the same width. Would you cut it a little wider because the binding is going to take some of the width away? Am I over thinking it? I stayed away from sashing but this one won't work with out it.

I feel like this is a dumb question. lol