I plan on making some major (or major for me) modifications to my jon boat this spring. One of the modifications is adding a floor, and I would like it to be carpeted as well. At this point I am just weighing options. I've heard alot of people talk about using plywood and the problems with it. Mainly the problem of it causing pin holes in the aluminum. So I've thought about using aluminum sheets... but I think its pretty expensive. I remember a guy a while back talked about using some old road signs he got from the department of transportation... would carpet adhesive bond with aluminum? Back to the plywood. I am assuming, but could be very wrong, that the pin holes in the aluminum happen where the wood comes in contact with the metal. I was thinking about this and the only points of contact would be on the ribs and around the edges of the floor. If the edges were covered with carpet and I put a thin layer of rubber strips or something between the wood and the ribs, would this take care of the problem? Also, does marine grade plywood have this problem? I appreciate any help or input.