Quote Originally Posted by Cooose View Post
I'm using 3/4" marine ply, which is coated in Epoxy and glassed on both sides. On the top of the floor I plan to Epoxy & glass wood blocking and cleats to the deck surface and anything that needs to be secured to the deck will be screwed into the "sacrificial" blocking/cleats.

I've also significantly improved drainage between the stringers such that water that may find it's way in can also find it's way out.
awesome, that should do the trick!