My pups are almost 14 weeks and so far they have not attempted to scale the walls of their x-pen but anything is possible. My little girl Maggie would be the one to do it. LOL! Barkley, the yorkie I had previous to these little ones was crate trained but he would still have accidents in the house so I don't know if anything is 100% fool proof. I think it depends on the dog and how much effort you put into training them. If the puppy apartment is enclosed and that makes you feel more secure then I would go with that.
__________________ Bogey  Maggie Mae and Barkley 8/28/12  |