Here's something to add to the list of awesome things you can build for your cat: a catio. It's a portmanteau of cat + patio, and it's an enclosed outdoor space that lets your cat enjoy the great outdoors, without the attendant risks. If you've got the DI Outdoor Cat Enclosure, Patio Enclosures, Cat Run, Cat Condo, Outdoor Cats, Outdoor Spaces, Outdoor Living, Outdoor Kitchens, Backyard Fences