Plywood help: flooring in a trailer

[Lew]

I am looking for a good plywood to be used as flooring in a 5X8 trailer. Weight top is 1800 lbs. What should I use? 2X6 would make it too thick to load on the tilt trailer.

[Anonymous]

Good plywood? There's Pressure Treated plywood, that's about your best bet there. But, if the structure's there, I'd probably go with low-grade Steel Diamond Plate and never replace it again...it might even be real close to the price of plywood, plywood's expensive.