a friend of mine bought one for her jack russel that had the divider in it. she got it from petsmart.
good luck!! I am very lucky that maggie has never messed in her crate. and it is pretty big....not huge but def. bigger than she needs. I got very lucky with that because I have had a dog in the past that would mess in his crate and then play in it. ooooh...that was so hard!!
again...good luck