I have a re-do going on...trying to think this out without over thinking it... Cutting out the benches....adding bulkheads, and decks... Looking at Marine Grade plywood, or similar. What thickness do I need for the bulkheads & dividers? how about the decks? I was thinking 3/8 for the bulkheads, and 1/2 for the decks...but I don't want to over or under shoot this...I want the least weight possible with those materials, but not sacrificing stability and strength
!/4 inch marine ply will work fine for bulkheads. Can be used for decking also if cambered and a layer of 6 oz tooling cloth applied to each side over proper framing.
Yeah I chickened out and got 1/2-inch. Well, my deck will be overbuilt. Try Brett's method of bending the deck in a slight frown shape to resist moment forces. That may be the "camber" he's referring to. Brett, you used luaun too, right? That stuff's pretty well priced.
