Marine Grade Plywood?
That Cape Henry is a cute little boat!
I have to agree with Vasbinder (and Jeff_H) here. As stated before, I am only a "tinkerer" at this stage - replacing bulkheads, redoing decks, repairing wooden mast, etc. on a 28ft sloop. BUT I completely sympathize with the joy derived from these exercises and would love to build a small boat myself someday. I frequently get dock mates who gaze in on me when I''m working on the boat who clearly don''t "get it." There''s sort of a grudging admiration, but if sailing meant working on a boat, they would have no interest. Whatever Vastbinder decides, best of luck to him. BUT, he SHOULD spend the extra money for marine-grade ply!