I got this for my mom's dog, that I got her, and she told me while I was at school that he got huge. So my first thought was so I didn't get a toy dog so I got the large crate and I came home from thanksgiving break and he is still a tiny toy, so this thing is of course colossal on him, but not so much where he can fit through the bars. Love the two door exits. It seems suitable for any dog. I'm not so sure if this would be alright for a strong dog (the wire seems strong, it's defiantly not weak). But defiantly good for a trained dog.