I actually got this for an outdoor "cave" for the cats on the screen porch. They spend a lot of time on the roof lol, but they do seem to love it. My husband put it together and he used a few of his tools but it didn't take him very long. It is very well made with a hinged roof that opens if you need access. It is sold and stable but light enough to move around if you need to. The floor is raised so I am sure that is an advantage if you use it for a truly outside pet.