I bought a 48" inch play pen (http://www.amazon.com/Midwest-Exercise-Pen-30-Inch-Black/dp/B000H8YTJI/ref=sr_1_2?s=pet-supplies&ie=UTF8&qid=1438803234&sr=1-2&keywords=dog+pen) and had it attached to the door of the crate to provide more room for my GSD. Within about two weeks of getting her she was able to climb up and over. I had to make a roof out of chicken wire to keep her in. The pen you have is made for babies and likely wouldn't stand up to a shepherd.