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Here is my two cents:#1 - General consensus here is exterior plywood glued up in layers will work well. You can also use dimensional lumber like Southern Yellow Pine or White Oak. Whatever you use, seal it well. #2 - If you are concerned about stability (your #3) then putting in raised decks is going to make things worse. I like your idea of adding a floor. #3 - I would weigh the time and expense of modifying the hull against getting one that might better meet my needs. On the other hand, look at the link below. TinBoat member [USER=34810]@waterant[/USER] made some pretty cool flotation collars:https://www.tinboats.net/threads/diy-flotation-collar-side-floats-to-make-your-tin-boat-safer-and-more-comfortable.51751/post-515760
Here is my two cents:
#1 - General consensus here is exterior plywood glued up in layers will work well. You can also use dimensional lumber like Southern Yellow Pine or White Oak. Whatever you use, seal it well.
#2 - If you are concerned about stability (your #3) then putting in raised decks is going to make things worse. I like your idea of adding a floor.
#3 - I would weigh the time and expense of modifying the hull against getting one that might better meet my needs. On the other hand, look at the link below. TinBoat member [USER=34810]@waterant[/USER] made some pretty cool flotation collars:
https://www.tinboats.net/threads/diy-flotation-collar-side-floats-to-make-your-tin-boat-safer-and-more-comfortable.51751/post-515760
