Dicas para gateiros: Como fazer um gatil com um pátio pequeno?
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 DIY itch, here a few inspiring projects to get you started. Your neighbors may look askance at your new outdoor room, but your cats will be happy, and that's what matters.
Cat Runs & Cat Proofed Gardens - Page 11 - Pet Forums Community
outdoor cat enclosures connected to house - Google Search
Awesome outdoor cat enclosure - Felix would love this, Aaron would divorce me