yup, some yorkies learn how to climb and no amount of height will keep them in. The 30 " one worked for us but you may want to go for one of those large metal crate if the pup will be in a life threatening situation if it gets out. They are more of a pain, not as easy to fold up and transport but will keep the pup safe.
I had a friend who put two gates (one on top of the other) to keep her 3lb. Yorkie in a room. She still got out sometimes!!!!!!!!!! |