Attaching marine plywood to aluminum stringers/framework on 1980 sea nymph fm161

[Harry1959]

I was surprised Thayer the floor only had 1/2 plywood. Also it was held to stringers by rivets. I am leaning toward using 3/13 sheet metal screws. Would rivets be better? Thanks

 

[jasoutside]

I was surprised Thayer the floor only had 1/2 plywood. Also it was held to stringers by rivets. I am leaning toward using 3/13 sheet metal screws. Would rivets be better? Thanks

It's a little bit situational, but in general, rivets would be the best method to secure your (sealed) deck to the alum stringers.

Welcome to iBoats!

 

[Harry1959]

Thank you for response and the welcome Jasoutside. This is my first post on iboats, although google searches for technical advice on my boat repairs/rebuilds had led me to Iboat forums many times. I have gutted and rebuilt 2 pontoons and 2 fiberglass boats, this is my first rebuilt of aluminum hull. Also I noticed a couple typos in original post. Would use 3/16 sheet metal screws, not 3/13. I will proofread posts in the future.

 

[Scott Danforth]

no need to go to 3/4" as the foam supports the deck.