Dock pedestals that have power receptacles, a hose bib and sometimes lights can get pretty pricey. We've got a hodge-podge setup at our dock. A broken fitting feeding the hose bib (they used PVC rather then CPVC) resulted in days of hunting the leak down that led to the discovery. So now I want to do the whole thing right. The all in one pedestals are too expensive so I thought what if I built something out of marine plywood and.or pressure treated lumber.

Anyone know if this is a bad idea? It's a salt water environment and I'm curious how well pressure treated lumber and/or marine ply will hold up to a marine environment. I don't want to make something that will be falling apart in a few years.