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Thread: Topping aluminum deck with plywood for stability?

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    Default Topping aluminum deck with plywood for stability?


    I have a 17/54 express with two milennium rod holders mounted on the deck. The aluminum flexes and the rod holders move more than I would like. I'm thinking about taking a sheet of 3/4 treated plywood, putting marine carpet on it, and carriage bolting it to my deck. Then remounting my rod holders and seat bases. I think it will really sturdy up everything. Has anyone ever done this or something similar? Any advice will be appreciated. Thank you

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    I went this way with it. It allows the holders to slide and the fasteners are spread over a bigger area.Name:  KIMG0176.jpg
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    Be careful with the plywood, will add quite a bit of weight. Does anyone know if the new treatment for plywood is safe with aluminum?
    I would go with something like catchNgrease posted. Not much weight, will never rot or warp.
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    Be careful with the treated wood and the aluminum. Could react and corrode and basically dissolve the aluminum. I also join in with the vote for stabilization plates instead of plywood.
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    I would get a piece of 1/8 aluminum cut to fit deck and put it on top and pop rivit it down.

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    Since 2004 treated wood has been treated with copper which will interact with aluminum. You could safely use it if you put a sheet of rubber or plastic between the wood and aluminum. However, as already mentioned, a sheet of 3/4 plywood is very heavy.
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    I would suggest aluminum plates underneath the rod holder bases. The wider and longer they are will only give it more strength.

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    And if the you insist on using wood, it is far better on the aluminum to get you some regular plywood and put several coats of marine Spar on it. Both sides and especially the edges. Plywood will have some gaps at spots where for what ever reason the laminate is not their, male sure to get the spar in the hole deep to prevent rotting from moisture. Good luck.
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    Quote Originally Posted by Jamesdean View Post
    And if the you insist on using wood, it is far better on the aluminum to get you some regular plywood and put several coats of marine Spar on it. Both sides and especially the edges. Plywood will have some gaps at spots where for what ever reason the laminate is not their, male sure to get the spar in the hole deep to prevent rotting from moisture. Good luck.
    Marine plywood doesn't have those gaps. But it sure leaves a very wide gap in your wallet.
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    Quote Originally Posted by skeetbum View Post
    Be careful with the treated wood and the aluminum. Could react and corrode and basically dissolve the aluminum. I also join in with the vote for stabilization plates instead of plywood.
    Thanks I've never heard of treated wood and aluminum having a reaction. I will definitely be researching into that if I go with wood.

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