Join Date: Apr 2007
Location: Powell River British Columbia, Canada
Hi. Welcome to the forum.
You can build a deck using plywood, but you have to give it ventillation to help keep it dry. Elevate it slightly, and keep it open underneath. The other thing you have to do is protect it from the weather. The only thing that I have found that works reasonably well is the material that comes in a roll and you apply it with glue. It is waterproof, and quite durable. Most building supply stores carry it. I can't think of the name of it right now. One word of caution. It is not cheap. Whatever you do, don't use Ducan or any other paint on product. My experience with them is that they simply are not worth the money, and do not last.