David Tyler wrote:
David has found out. What will the finished thickness be? 4mm? If so, use 9mm ply for the deck. I don't want this boat to turn out to be cranky.
Why not: her designer and owner both are?!
I'd already thought about putting on lighter decks, David. The side decks are going to need beams - they'll be too flexible even with stringers, but I'll make those out of laminated (treated) Kahikatea, of which I have a good pile. The centre deck can most certainly be 9mm, with its pronounced camber. However, in 20 years, the teak will be well worn and I wonder if 9mm will be strong enough for the side decks by then. The extra weight of wood will be about 10 kilos at the very maximum. The alternative of glass, epoxy, primer, polyurethane and deck paint would also add a not inconsiderable weight. Are we worrying, in fact, about 5 kg?