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How long can unprotected plywood be expected to last?

April 26, 2017plywood unprotected

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How long can unprotected plywood be expected to last?

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Marine grade or treated plywood will certainly last much longer than untreated. Unfortunately, I do not yet have a good idea of how long the wood can be expected to last. Unless the plywood delaminates because of exposure to wet conditions, I would guess that it will last at least a year.