
I want to build a small area where my indoor cats can go through a pet door and get some outdoor time. It doesn’t need to be huge and I originally thought of a window box but it’s too tricky to attach. Attaching a tall cage to my timber back door with a cat flap in the door seems the perfect solution. It has to be the small gauge bird wire to be 100% snake proof. Started searching off the shelf solution I could modify but there is nothing that suits my project. Would like to add shelves, steps, maybe weatherproof top and enclosed section near the top for hiding in. Need ideas on materials. Timber? Aluminium? 180cm H 60cmW 40cmD