zapped, The 20' is the minimum length permitted. You could have a 4' x 4' building. The wording also applies to "stuctures" not just buildings, so the 4' x 4' is not out of the question. I know that the 20' in a ditch would be just as good if not better than a 20' ground ring, it just is a violation of the code wording. A good place for a 2008 proposal. Don
