5 Things to Consider When Installing a Window Catio

Has your cat been showing you signs they might need a window box? Or maybe you just want to build the most purr-fect window catio—well, you are in the right place.

In this article, we will be going over 5 things to consider when installing a window catio.

1. Catio Size & Design Options

First, and most importantly, what is the size of your window? Without correct measurements this project can be doomed before it even starts! Make sure you measure the length, width you are wanting, and the height. A good ol’ tape measure can do the trick, but here at Cat Topia we recommend more precise measurements such as laser measurements.

With different types of windows, there are of course different types of window catios. Here at Cat Topia, we understand there is no such thing as one size fits all.

With so many options out there, it can be tough to decide which window catio setup is the best fit for you (and your cat). Let’s break it down with a quick list of pros and cons for custom-built catios vs. prefabricated options.

Custom Built Window Catio

Pros:

• Exact Precision: Custom builds ensure an exact fit—no matter how big, small, or oddly-shaped your window may be.
• Fully Customizable: You’re in control! From design and size to interior features like shelves and hammocks, custom catios let you create a setup that fits your home and your cat’s personality.

Cons:

• Cost: Custom catios usually come with a higher price tag. Why? You're paying for high-quality materials, thoughtful design, and the time it takes to make sure everything fits just right.

Prefabricated Window Catio

Pros:

• Cost: Prefab options are typically more budget-friendly. They’re made with cheaper materials and manufactured in bulk, which keeps the cost down.
• Quick Delivery: Available to ship right away with little to no wait time.

Cons:

• Quality: Most prefabricated catios use lower-end materials to cut costs, which can mean less durability and weather resistance.
• Customization: With prefab, what you see is what you get. There’s little to no room for personalizing the design or layout.
• Size: These catios are made in standard sizes, so if your window is a little unique—you might be out of luck.
• DIY Assembly Required: Unlike a custom catio that’s installed for you, prefab setups usually arrive in a box and require some handiwork. So, if you’re not confident with tools, it might be a bit of a project.

2. Safety & Durability

When you're thinking about getting your first catio, safety should always come first. Using the right materials can mean the difference between peace of mind and constantly worrying whether your cat’s outdoor hangout is holding up.

Let’s talk about the materials we use here at Cat Topia to help you pick the right, durable setup for your catio!

Quality lumber

Cedar: Cedar is a classic choice—and for good reason! It’s naturally resistant to rot and insects, smells amazing, and looks beautiful. Bonus: it weathers well and gives your catio that warm, earthy charm.

Redwood: Just like cedar, redwood brings natural durability and built-in protection against bugs and rot. It's also a champ in extreme weather, so if you’re in a climate that throws curveballs, redwood’s got your back.

Looking for something more budget-friendly? Pressure-treated (PT) lumber is a solid option. It’s treated to resist rot and insects and is great for outdoor builds—like your catio! Just note: it’s a bit more utilitarian in appearance than cedar or redwood.

Screening

1x1 Black Welded Wire Fence: This is our go-to at Cat Topia! We use 1x1 PVC-coated galvanized steel critter fencing. It’s tough, looks sleek, and keeps your cat safe from any curious (or not-so-friendly) critters. Plus, the black coating gives it a clean, polished look that blends right in.

Double Screening: Want to keep the bugs out while still letting the breeze in? We’ve got you. Some clients go with double screening, which includes cat-resistant pet screening layered behind the welded wire. It’s the perfect combo for creating a chill, insect-free space you and your cat can both enjoy.

Now for the serious-but-still-friendly part: your catio needs to be securely attached to your home. We’re not talking about a pop-up tent here—this is a structure that needs to hold steady through wind, zoomies, and whatever else nature throws at it. Attaching it properly to the window frame or exterior wall helps prevent any tipping, wobbling, or accidental escape attempts. Plus, a solid connection means you can kick back and relax, knowing your cat is safe and sound in their deluxe outdoor lounge.

However, this does mean you'll need to permanently attach the window catio to your home’s frame for better durability and safety. Renters, beware! If drilling into your home isn’t an option, you might want to check out freestanding catio setups instead. These don’t require any permanent connection to your house and can be just as fun and functional for your feline!

3. Accessibility for Your Cat

So, your cat has a fancy new outdoor lounge—awesome! But how are they actually getting in and out? Making sure your cat can easily access their window catio is key to them loving (and actually using) it.

Most window catios are accessed through—yep, you guessed it—a window! If you don’t plan on installing a cat flap or pet entrance, you’ll want to make sure you’re okay with keeping a window constantly open. Just a heads-up—this can invite insects (and maybe even the occasional chilly breeze) into your home.

That’s why we highly recommend using a cat flap, like Cat Flap Fever . It gives your cat the freedom to come and go, without turning your living room into a bug party.

Got a senior kitty or one who’s not a big fan of jumping? No problem. You can add steps, shelves, or a gentle ramp to help them cruise in and out with ease. Trust us, your cat will appreciate the red carpet treatment.

And if your cat’s a little hesitant about their new outdoor digs, don’t worry—it’s totally normal. Some cats need a bit of training or encouragement. Toss a favorite toy or treat inside the catio, give them time to sniff things out, and be patient. Before you know it, they’ll be sunbathing out there like they own the place (because, let’s be real, they do).

Pro Tip: Try placing their favorite blanket or bed inside the catio during the first few days. Familiar smells = comfort = “okay, this place is mine now.”

4. Weather Considerations

Your cat might love basking in the sun, but let’s be real—no one wants a sunburned kitty or a soggy furball. That’s why it’s important to think about the weather when planning your window catio.

Start by making sure there’s plenty of shade, especially if your catio gets a lot of direct sunlight. A covered roof, solid panel, or even a mounted awning can go a long way in keeping things cool and comfy during the summer months. On the flip side, if you live somewhere that gets chilly, adding a little wind protection or an insulated spot can help make the catio usable year-round.

And if your local weather forecast loves a good rainstorm? Consider adding waterproof touches like slanted roofs, polycarbonate panels, or outdoor-safe fabric covers. Your cat stays dry, and you don’t end up with a mini swamp outside your window. Win-win!

5. Enhancing the Experience

Last but definitely not least: enrichment features! Because let’s be honest—what’s a catio without a little fun?

Here are some of our favorite add-ons here at Cat Topia:

Multiple shelves

Adding shelves turns your catio into a multi-dimensional playground. Cats love vertical space, and shelves give them levels to explore, lounge, and claim as their own. Plus, they get those purrfect high-up vantage points to spy on birds, bugs, and the neighborhood drama.

Ramps

Ramps aren’t just great for senior kitties—they’re also a nice way for any cat to reach higher spots without having to leap like an Olympic athlete. (Let’s be real though, most of the time they’ll still launch themselves shelf to shelf... but hey, it’s nice to give them options!)

Hammocks

Is it really a catio without a cozy spot to nap? We don’t think so. Hammocks are a favorite for mid-play snoozes, and they don’t take up a ton of space. Try hanging one up high—cats love curling up in elevated hideaways for their royal rest sessions.

Cat-Safe Plants

Want to bring a little jungle vibe to the catio? Add some cat-safe plants like catnip, wheatgrass, or spider plants. Not only do they add greenery and visual interest, but your cat will love the sensory stimulation (and maybe a snack or two).

Interactive Toys

Keep your cat entertained with toys that dangle, roll, or crinkle. Motion-activated toys, hanging feathers, or even a few DIY surprises can help your cat stay engaged while they're outside living their best life.