We have a 12x20 cat enclosure made out of cedar lattice panels that doubles as a seasonal daytime chick pen (minus cats) or broody breaking pen, (minus broody hen savvy cats). A cat door on the side of the house let's the cats come and go to the pen. The enclosure keeps most small wildlife safe from the cats and the cats safe from the bigger carnivores. I say most wildlife, it is amazing how many mice the cats catch out there. Our cats especially like an elevated perch with low sided cedar boxes attached. They can keep an eye on everything or curl up to snooze in the sun. Your cat should love its new 'catio' and be safe at the same time.