A pry bar or crow bar may be needed. Will take an hour or so to complete. 3.Needs to be lumber 2 X 6 or 2 x 8 or 2 x 10. Decking will not work, to thin. I just recently bought a slightly used 7 x 14 cargo trailer that has nothing in it. Gov or call us at 717-412-5300. We can supply and ship to Pennsylvania from our warehouse. Truck and trailer decking products are available for direct shipment to Pennsylvania from Memphis. I've used polyester resin before, which will seal it water tight. It might be a bit expensive depending on how much you are doing, but it is water proof.