Info on Plastic peg board please

[nita]

I've heard a few people mention using plastic peg board and am interested in using it for the back of my Blood cages but have a few questions.
1. Where do I find it, have never seen it.
2. Does it attach normally, just screw in or does it have to be glued or something.
3. What are the thicknesses available? I'm using 5/8" Melamine for the rest of the cage.

Thanks in advance guys!