How To Easy Build Cat Enclosure

Large catio attached to the side of a house

Cat Enclosure that provide peace of mind knowing your cat is always safe outdoors while protecting birds and wildlife. Whether you have an indoor or outdoor cat, you can provide many benefits for your feline friend, including safety, enrichment, fresh air and the stimulation of nature, by building a cat enclosure.

If you want to build one yourself, or you’re not sure where to begin, here are some tips to help you get started:

Window Box Type Catio with Window Access


There are several factors to consider when choosing a location for your cat enclosure. Prior to building your cat enclosure, consider the following:

  • Cat Access: The ideal location for a cat enclosures is near an exterior window or door with easy access for your cat to enter directly into a cat enclosure. Cat doors, available in a variety of sizes and styles, can be installed in a window, door or a wall. If you prefer a cat enclosure located further away from your home, consider a cat tunnel or carrying your cat to the cat enclosure.
  • Size: Evaluate how much outdoor space you have available and how many cats will use the cat enclosure. Cats love vertical space so you can maximize a small area by adding several vertical shelves and perches. If space is limited, a window box cat enclosure is a great option. If you want to enjoy the cat enclosure too, a 6’x8’ or 8’x10’ size catio will allow space for seating and bonding with your cat. After all, nature is good for humans too!
  • Level Foundation: Build your cat enclosure on a flat, level foundation to insure a successful project. Uneven ground can be leveled or you can build your cat enclosure on a patio or deck. Above-ground window box cat enclosure can be supported by angle braces that attach to the house.
  • Sun/Shade:  Cats love basking in the sun so a location that offers both sun and shade is ideal. Always provide shade for your cat such as shade cloth, a bench or cat shelter while outdoors.
  • Stimulating Views: Cats need stimulation on a daily basis. A cat enclosure location with views of a garden, wildlife and family activities will provide endless enrichment for your cat while enjoying fresh air.
Two cats enjoying a perch in their catio


Materials for building a catio are available from your local home improvement or lumber store. Typical materials include wood framing lumber, escape-proof wire, cedar shelves and roof options such as wire mesh or polycarbonate material so your cat can enjoy a cat enclosures all year long. To insure an escape-proof outdoor space, consider the following:

  • Wire: To insure your cat’s safety and the durability of a cat enclosures, 16 gauge, galvanized welded wire (fencing wire) is recommended and available in a variety of sizes including 2”x3” or smaller. Other options include vinyl-coated wire in green and black colors. Wire can be attached to your wood framing using a staple gun.
  • Floor: If you build a catio on a deck or patio, your floor surface already exists. For cat enclosure built on the ground, consider existing grass or add bricks, pavers or decking material. These materials will help avoid tracking dirt or muddy paws into your home.
  • Cedar shelves: Tight-knot cedar is a good choice for creating shelves for vertical and horizontal movement in the cat enclosures. Corner perches, ideal for lounging and catnaps, can be constructed using ¾” exterior grade plywood and covered in outdoor carpet.
  • Roof: A wire mesh or a clear, polycarbonate covered roof will insure your cat is contained and protected.
Accessories can provide enrichment in your catio


One of the joys of a cat enclosure is enrichment for your cat. Once you’ve built your cat enclosure, a variety of accessories and décor can enhance the outdoor experience including:

  • Cat Toys and Cat Scratchers: Add your cat’s favorite toys, a cat scratcher, tunnel tube or other enrichment for your cat’s enjoyment.
  • Cat Safe Plants: To keep your cat healthy, avoid using plants that are toxic to cats.   Several safe plant choices include wheat grass, catnip, basil, nasturtiums, pansies or grass planted in a pot.
  • Water Bowl or Fountain: Always have a bowl of fresh water available for your cat in a catio or consider a water fountain. (Avoid food that can attract rodents or unwanted critters.)
  • Litter Box: An outdoor litter box (in addition to your indoor box) can help reduce indoor odors and provide a convenient location for your cat’s needs while outdoors.
  • Decorate! Have fun decorating your cat enclosures with rugs, seating, garden art and more. There are endless ways to customize your cat enclosures to suit your style and your feline’s fancy!



4 different catio plans for a window, patio, deck or garden

A DIY catio plan can be the easiest way to build a cat enclosures and to get it right the first time.

As the founder of catio Spaces, we’ve been building custom catio for cat guardians for several years and while each catio is designed for a specific location, I’ve found that a few styles work well for most homes.

I’m passionate about catio and want to help every cat have a catio of their own. That’s why I made my most popular catio designs available to take the guesswork out of building one. Our DIY catio plans are designed to be built as panels (for ease of assembly) and best of all, you don’t need to be an experienced carpenter!

What’s included in a DIY Catio plan?

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