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Marine plywood has a couple advantages ...extra ply and no voids..been told same glue is in exterior ply so thats no better...but for a bulkhead that will be reinforced anyway I would not pay special fright and or wait for it to arrive just to have it but would go with 3/4 inch cc plugged ex tier...
Pressure treated ply also is not as stiff due to the impregnation process...it warps a lot easier under loads...so I would not use it for a bulk head...I wish Bayliner would have used it for transoms in their boats though...they would not have such a rot issue...
You will be fine pulling your main bulk head under the conditions you listed still in the water...
Last edited by Stillraining; 05-06-2008 at 02:00 AM.
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