Popular cat enclosures include large, tiered cages, round and square screened enclosures, and cat-safe fence systems. Designs are available as kits or custom built unit for any yard or outdoor space to fit the needs of the cat. Most outdoor cat enclosures include a tunnel that connects to the house.
Online retailers such as CagesByDesign.com and HabitatHaven.com sell cat enclosures of different sizes, many of which have customizable options. Both JacksonGalaxy.com and Paws.org share stories from those with outdoor cat enclosures and offer resources to help customize enclosures. In addition, Paws.org lists retailers that offer wide varieties of outdoor enclosure options.