KJ, upon giving it a little more thought, the whole idea of encapsulating the wood is to prevent it from absorbing water. So using a piece of treated pw that has been in a warehouse drying seems like a good idea. However it is pressure treated, so it does tend to squirm around during the treatment process as the different veneers absorb fluid at different rates and move in different directions, leading to a sheet that is not totally straight or dimensioned properly. Is it as strong as it once was? I don't know. Marine plywood conforms to a much higher standard than regular plywood. It has waterproof glues and decay resistant wood species. You have to know in the back of your mind that if you used marine pw, you would never have to worry about the quality of your work. But everytime you saw a thread about stringers or transoms, there would be a twinge of doubt! What ever you use, just pay attention to any cuts, limber holes, and chase ways. ultimately it is the penatrations through the encapsulating cover that leads to the downfall. I'm ripping apart a 73 center console right now to replace the floor and stringers. I can't wait to see whats underneath!
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