the boat was designed with marine grade plywood, and that's what i'd use. more than likely the transom will just take one sheet of 3/4 plywood, the $60 or $70 for that isn't going to make or break any rebuild. now, with that being said, imo exterior grade plywood should be fine for the deck.
best answer: i used coosa recently on a boat rebuildit can appear to crush when overly compressed and then the lack of fiber in it vs plywood leaves it a bit loose to bolt into. that said, if you use the 3/4 and can bolt all the way thru it with some solid washers on the back you should be fine.
photo d is a piece of plywood from the floor of a boat wreck. note that even though the plywood has been snapped and left exposed to rain and wind it still holds its integrity. this was located underneath a faux teak floor meaning that it is most likely the original plywood used to build the floor of the boat.
i am trying to re-deck a pontoon boat. the owner dosen't want the 1' plywood and carpet as the deck any more. they want a fiberglass deck. they have had bad problems with rotting of the wood deck so they want fiberglass.
pontoon decks - wood-aluminum-composite whats the difference between cca and acq decking? the epa dictated that lumber yards could no longer sell cca treated plywood. the marine industry was granted an exemption with the understanding that wood would not be cut and would be used in whole sheets.
our pontoon boat decking boards are 3/4' thick. what is the warranty? the warranty on our cca treated marine boat deck wood is 30 years. do yall have fiberglass boards in a 4*8 sheets 3/4 inch thick. unfortunately we do not offer fiberglass boards for your pontoon boat. we do offer 3/4inch marine plywood thats some of the best in the
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re: why not pressure treated plywood? if you would take the time to search this forum, you would find multiple instances of the corrosion caused by pressure treated plywood to aluminum boats. we have some of the most experienced pro's on the web on this forum and that's why iboats is 1. you can't compare the responses here with other forums.