I've been needing a sink in my basement/garage for a while now.. so I picked up a really decent 2'x2' (approx) sink with hardware for cheap at the local Habitat Home Store. I've built a fixture for it to go in with pressure-treated 2x4's and some OSB for the top. Need something to go over the OSB though.. cheap, durable, and easy to install. I thought about just painting the OSB and caulking the edges but I want something more durable. Thoughts?