Class 2 water-reactive solids and liquids shall not be stored in basements unless such materials are stored in closed water-tight containers or tanks. Proposal Pages. Items.Resources and Experience of Bidder. Hi-Lifts, Extra Long Trailers, Semi-Pole Trailers, Double. Apply to Laborer, Installer, Foreman and more! Most trailers are designed for conventional lumber, with out ripping. I would assume that solid wood PT boards would be stronger and last longer but I'm getting conflicting evidence online as a lot of people recommend plywood. Most trailers are designed for conventional lumber, with out ripping. Then what happens when it starts to crack or come up? I've heard you can't just epoxy over it when it's so old. .