Have a 03 sled bed 3 place trailer. The wood is starting to splinter pretty bad. The deck still seems solid. Was wondering if there was anything I could put on it. Roll on bed liner? Cover it with 1/8 inch thick piece of aluminum? Open to ideas. Also thought about just replacing the wood. What would you use? Treated plywood and aluminum don't like each other. Marine grade plywood availability is limited in my area. Local lumber yard recommended MDO plywood.