I do the same thing, Linda, but use treated lumber. 1"x6" for the platform and 2"x2" for the "feet". I use three 2x2's per platform. My platforms are everywhere under my oaks and cedars. That's what I put the potted plants on during the spring and summer. That not only allows the pots to drain well but also keeps the pots off the ground. My tree roots readily grow into the bottom of the pots otherwise. Also it keeps the earthworms from getting into the pots. I don't mind the worms.........actually I like them being in the potting soil, but my customers freak out if they find a worm in the root-ball (some of them anyway). I posted something a year or two ago about a customer in New York City finding an earthworm in a root-ball. It was and is a funny story.
