Boat deck help

[Les Young]

either use marine plywood or regular plywood covered in fiberglass resin. Treated plywood will cause a reaction called galvonic corrosion & eat holes in an aluminium boat. Personally i'd still excapsulate marine plywood in resin & seal all holes where screws were.

[peter]

either use marine plywood or regular plywood covered in fiberglass resin. Treated plywood will cause a reaction called galvonic corrosion & eat holes in an aluminium boat. Personally i'd still excapsulate marine plywood in resin & seal all holes where screws were.

Good advice Les!
Also there is marine plywood and then there is "marine plywood".
If I were doing this I would call Lund to find out where to get good marine plywood.
No treated plywood as mentioned anywhere in boat or trailer bunks. I used it and then took my aluminum sea nymph to the scrap yard a year later due to holes caused by the copper in the treated wood. I could write a book on chemical reactions in an aluminum boat! Almost went fiberglass but I guess I'm just an aluminum boat junkie.

PS - also ask Lund about what type alloy/metal screws to use...or just have them send you some. Same for rivets. Dissimilar metals is a problem especially in damp areas. Add salt and it gets a much worse.

[bob46]

I have done several I'm a carpenter I always cut pieces to fit coat all edges with fiberglass resin even edges screw down seal holes with resin mesh the edges and seams with fiberglass finish mesh that floor will last a long time