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Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 15914
Experience:  Degree in Marine Technology. Gas and diesel marine mechanic.
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On a 1985 aluminum crestline Nordic (16'). It has 4 2X6's,

Customer Question

On a 1985 aluminum crestline Nordic (16'). It has 4 2X6's, screwed to aluminum beams going from front (at steering wheel) to back. 2 on each side. Are they put in at factory? Also, is 1/2" plywood o.k.?
Submitted: 2 years ago.
Category: Boat
Expert:  Jason replied 2 years ago.
Hello my name is ***** ***** am I speaking with?
Crestliner would have used marine grade plywood, and they would not have used 2x6's. As far as using 1/2 inch plywood, that really depends on how long you want it to last. I don't know how much you know about plywood, but it comes in different grades, with each side (or face) of the board having a letter assigned to it. With A being the best, ***** ***** being the worst. If you boat in saltwater, you really want to use a marine grade ply, it will hold up the longest. Marine ply would carry a rating of AAX. With both sides of the plywood being an "A" grade, meaning the faces are perfect. Marine ply is not allowed to have any voids or knots. The X means exterior grade, and that they use a waterproof glue. If you are boating in freshwater however you can typically get away a decent grade of exterior grade plywood. Something like a BCX is typically fine.
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