My favorite of all time is the Safety 1st Perfect Fit Gate. Got one at an auction and I am now hunting for best prices around. It snugs right up and easy to use. I have yet to find one with bars that are not easily climbed but perhaps you can attach plexiglass to the top half so they can only climb so far? That way you have some air holes and can get just about any gate/barrier. Me, I just love this one and am waiting for a sale! Thanks Kathy of Sammy's Clubhouse Spokane Ferret Rescue and Education Main website: https://sites.google.com/site/sammysclubhouse Like us on Facebook! Adopt your next pet from Petfinder. [Posted in FML 7812]