Cat shelves or cat walls? No matter what you call them they are the coolest diy cat idea I've ever seen. Cat climbing shelves are a great way to make something cool for you cats & save space in your home.
Do you have a cat? I once had a feline friend called Frederik-Bo, who was so sociable, he'd even go to the cafe round the corner to eat muffins with the clientele. When he first arrived home as a kitt(Diy Furniture Design)