You can buy a lot of different structures from your local pet store or online. You can build a cat castle by taping or stapling cardboard boxes together and cutting out holes for the cat to climb through. Cats love boxes. You can even put up cat shelves for the cats to explore. [8] X Research source

Try out different designs to see which the cat likes best. This will help keep your cat away from the furniture. [14] X Research source

Make sure you measure your window before ordering a pre-made catio.

Don’t forget to make sure that other animals, especially predators, can’t get into or dislodge the catio. [21] X Trustworthy Source The Humane Society of the United States National organization devoted to the promotion of animal welfare Go to source