I just started putting in the trex overlay. I helped a friend with a CCI grille of the same style and the instructions were the same. I'm hoping to have it done by sunday. You really need to have access to a grinder. I'll take a few pictures and throw em up when I get done depending on how it comes out. Also when it comes in the pics in the instructions suck. But you can pull up a pdf off of the trex website. They are identical.