Anyone have ideas for a trailer floor? My open has the wood planks, but after hauling some gravel it was a mess, was dropping rocks for a week after I cleaned it......I did use a large tarp, but didn't help....I saw some waterproof Luaen at HD, thin, about $10.00 a sheet, I even thought of the shower wall stuff??? If I could afford alum. diamond plate I would use that, it has to be thin as I don't want to add extra weight...thanks....or i guess I could Liquid nail the gaps????