Thinking about creating cheap do it yourself bed cover that will last and survive in bad weather while keeping cargo dry. My idea is buy one piece of either hardy plank or ply wood (short bed on fronty). Treat with sealant. If have to use two because cant find one big enough reinforce with 2X2 or 2X4. Attache some wheather striping to inside in order to seal against top of bed and tail gate. Drill four holes (two in front and two on sides toward rear of bed) making sure to aligne tie down clamps in bed rail under holes. Use a long bolt with some kind of rubber washer to seal against wood and use a nut to attach to tie down or bed rail clamp. Then probably spray paint either black or grey to match paints. Only going to use on road trips. Packing the wife and kid and a weeks load of luggage on the inside gets quite cramped. Let me know if there are any threads talking about this probalby will cost 20to 30 bucks depending on the type of material used. Any other ideas or any other methods all advice appreciated.