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I am about to replace the bunks (wood, brackets and carpet) on my trailer. In the past, even treated wood only lasts as long as the carpets (4 years max). I have a handful of good red cedar 2x6s that I'm pretty sure would last longer than treated 2x4s.
Would the natural tanins in the cedar seep through the carpet and stain the boat? Should I oil the wood or let the west coast red cedar just absorb and release water like it usually does?