My wife decided to get out daughter's each a guinea pig so I decided to build them a new home before they arrive. Thanks to the info here it was pretty easy. The cage on top is for our bearded dragon that I built 3 years ago. Still need to figure out what to do with the hay and put a lid on the kitchen. We do have a dog and cat (and kids) so it needs to be secure. The new family members are arriving on June 2nd.