I bought a legend trailer that was used and previous owner insulated it and lined all walls and ceiling with 3/8 cdx plywood and it looks good and lot stronger than Lauan but afraid won't be easy to clean. Lots of trailers have white walls woundering what that is they used. Menards sells frp board u full spread glue on wall and apply it but I'm afraid to heavy then anybody have a light wieght wall liner that's easy to clean ?