Quote Originally Posted by Bruce Schultz View Post
I didn't say I was cutting Windows. Just for cutting boards to size.
Unless you cut a lot of non-standard sizes, it's often easier to buy mat board pre-cut. You can get many standard sizes and they'll have perfect straight cuts and square corners. I use 14x18, 16x20, 20x24, 22x28 and 30x40. I get them from Redimat. They have a large selection of rag boards (I use Alphrag) and colors.

Save your rotary trimmer for photo paper.