>4. The perimeter fencing doesn't have to be very high, but needs to be >smooth and continue underground for 2-3 feet so that the ferrets can't >tunnel out. Hello FML, Hello Shirley -- I'm thinking of re-designing my in-progress outdoor ferret enclosure (yes, after all this time, it's still not done ( -v- ) ) to be more like yours, Shirley. Is everyone satisfied with 2 - 3 feet for keeping ferrets from tunneling out? And should the smooth perimeter be about 4' high? [RiccoRobertAdaTinaArtie] [Posted in FML issue 4943]