I used my jigsaw to cut out a half circle in the back of the monitor shelf, in the far right section for wires to be threaded through. I used a small plate to mark it off.
Then I put the monitor shelf on the desk. ALMOST DONE !!!
I still need to finish it somehow. I think I'll use paint. You could stain yours. I'm also going to put furniture glides on the legs so my floor won't get all scratched up. The monitor shelf should be attached to the desk with screws. I'm going to put mine up through the desk surface & into
the outside 2x6. I think I'll wait until I have it in my computer room before I attach it so it will be easier to move the desk into it's permanent place.