A catio is the honest middle ground between a cat that never sees the sun and a cat that gets hit by a car. It’s a screened outdoor enclosure, a cat patio, that lets your cat lie in the sun and watch birds while staying safely fenced in. Indoor cats live longer, but a lot of them are bored, and a catio fixes the boredom without opening the front door to the traffic and predators that put free-roaming cats in the vet’s office. This guide sorts the options by type and situation, gets the safety facts right, and tells you when to buy versus build.
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Here’s how I approached it. There are no verified product ASINs for this page yet, so every link below is an Amazon search for the model, not a one-click buy, and I’d rather tell you that up front than send you to a random listing. I’ve weighted the picks by which catio type fits which owner, because that decision matters far more than the brand. Read the types section first; it’ll save you from buying the wrong shape.
Quick answer: the best catios by situation
- Best overall (backyard): Aivituvin AIR37. Mid-to-large freestanding, weatherproof roof, room for shelves and a couple of cats. The one I’d buy for a normal yard.
- Best walk-in: PawHut walk-in catio. Full human-entry height so you can go in, clean, and set it up with tall shelving.
- Best for renters / small spaces: Aivituvin AIR22. Compact freestanding footprint that fits a balcony or a small patio.
- Best large / multi-cat: Aivituvin AIR52. Big modular unit with real depth and height for three-plus cats.
- Best wood-built: Coziwow wooden catio. Weather-resistant, non-splintering wood if you want it to look like furniture, not a cage.
- Best portable / pop-up: LUCKITTY portable enclosure or a Tailtastic playpen with tunnel. Tool-free, folds flat, supervised use only.
- Best budget / indoor: Amazon Basics cat playpen or an Outback Jack tent.
The five catio types, and which one is you
Before any brand, figure out the shape. Almost every buyer’s regret comes from picking the wrong type, not the wrong model.
Window-box (window-mount). A small enclosure that bolts onto the outside of a window, like an AC unit but for the cat. The cat climbs out through the open window into a screened box hanging outside. No yard footprint at all. Great for apartments and renters, and for a single cat who mostly wants to sit “outside” and watch. Downside: it uses up the window, and it’s small.
Freestanding. A standalone box that sits in the yard or on a patio, not attached to anything. This is the most flexible type and where most of the good kits live (the Aivituvin AIR line, Coziwow). You carry the cat out to it, or connect it later. Fits the largest number of people.
Attached / three-sided. Bolted to the house and connected through a window or, better, a cat door, so the cat lets itself in and out. This is the dream setup: the cat wanders out to the catio whenever it wants and you don’t have to do anything. It needs a bit more commitment, and usually a cat door, which is a separate purchase. See our guide on pairing an attached catio with a cat door so your cat can come and go freely.
Walk-in. Tall enough (70-plus inches) for a human to walk in. The big advantage isn’t for the cat, it’s for you: cleaning, adding shelves, refreshing water, coaxing a cat out at dusk, all of it is easier when you can stand up inside. PawHut and the larger Aivituvin units cover this. If you’re at all serious about a permanent catio, a walk-in is worth the extra money.
Portable / pop-up tent. A mesh playpen or tent that pops open in seconds and folds flat for storage. LUCKITTY, Tailtastic, Outback Jack, Kitty City. This is supervised outdoor time, a stroller not a house. Fantastic for camping, apartments, and testing whether your cat even likes being outside before you commit to something bigger. Not for leaving a cat alone.
The 2026 catios compared
| Catio | Type | Roof | Walk-in | Capacity | Best for |
|---|---|---|---|---|---|
| Aivituvin AIR37 | Freestanding | Weatherproof | Partial / tall | 1-2 cats | Most backyards |
| PawHut walk-in | Walk-in / attached | Solid + mesh | Yes (70”+) | 2-3 cats | Cleaning, shelving |
| Aivituvin AIR22 | Compact freestanding | Weatherproof | No | 1 cat | Renters, balconies |
| Aivituvin AIR52 | Large modular | Weatherproof | Yes | 3+ cats | Multi-cat households |
| Coziwow wooden | Freestanding (wood) | Waterproof wood | No | 1-2 cats | Looks, durability |
| LUCKITTY portable | Pop-up tent | UV mesh cover | No | 1 cat | Supervised patio time |
| Tailtastic playpen | Pop-up + tunnel | Mesh | No | 1-2 cats | Play, travel |
| Amazon Basics playpen | Indoor pen | Open/mesh | No | 1 cat | Indoor, fostering |
| Outback Jack tent | Pop-up tent | Mesh | No | 1 cat | Budget, camping |
Price tiers, roughly: compact and pop-up units land around $150 to $300, mid-size and walk-in around $300 to $600, and large modular or wood-built units $600 to $900 and up.
Best catio for cats overall: Aivituvin AIR37
If someone asked me for the single best catio for cats in a normal suburban yard and didn’t want to overthink it, this is where I’d point them. The AIR37 sits right in the mid-to-large freestanding range: enough depth and height for real climbing, a weatherproof roof so it survives rain and gives shade, and a footprint that fits an average yard or a big patio without taking over. It’s the middle child of Aivituvin’s AIR line, and the middle is where most people should be.
What I like is that it’s tall enough to add shelves and a perch or two, so the cat gets vertical space instead of just floor. The corners are reinforced and the wire is on the sturdy side. Assembly is a solid afternoon, not fifteen minutes, and it’s genuinely a two-person job for the panels. If you have one calm cat, you could size down; for two cats, this is about the minimum I’d go.
Key features: freestanding mid-large frame, weatherproof roof for rain and shade, room for interior shelving, reinforced corners, fits one to two cats.
Check the Aivituvin AIR37 on Amazon
Best walk-in catio: PawHut walk-in
You end up in and out of a catio constantly, scooping the litter station, swapping water, adding a shelf, coaxing a cat back inside at dusk. A walk-in with a full-height human door makes all of that ten times easier than crouching and reaching through a small hatch. That’s why I rate the PawHut walk-in so highly for anyone building a permanent setup.
Standing height means you can hang tall shelving and build the vertical playground cats actually use. Look for the full latch on the door and add a two-point lock, more on that below, because a tall door is exactly what a raccoon will try to work open. It’s a bigger footprint and a bigger project than a compact unit, so measure your space first. But for a forever catio you’ll be maintaining for years, being able to walk in is worth every dollar.
Key features: 70-plus inch human-entry height, solid-and-mesh roof, space for tall shelving, can attach to the house, best for two-plus cats.
Check the PawHut walk-in catio on Amazon
Best for renters and small spaces: Aivituvin AIR22
Not everyone has a yard. The AIR22 is the compact end of the AIR line, a small freestanding unit that fits a balcony, a small patio, or a corner of a rental where you can’t drill into anything. It’s also the one I’d hand to a nervous indoor cat as a first taste of outside, because a small enclosed box is far less overwhelming than a big open run.
It’s a single-cat unit, realistically. Two cats will feel cramped. But for one cat and limited square footage, it does the job, and because it’s freestanding you can pick it up and take it with you when the lease ends. Put a familiar blanket and a perch inside and feed meals in there to win a hesitant cat over.
Key features: compact freestanding footprint, weatherproof roof, no drilling required, great renter and balcony fit, one cat.
Check the Aivituvin AIR22 on Amazon
Best large multi-cat catio: Aivituvin AIR52
Three cats, or one very active cat who treats the small units like a shoebox, want the AIR52. It’s the large modular unit in the range, with the depth and height to run multiple shelves and still leave floor space. Modular matters here: you can combine units to build something bigger, so this scales with a growing household.
It’s a real project to assemble and it needs a proper spot in the yard, so this isn’t the balcony option. But if you’ve got the space and the cats, the extra room pays off in fewer squabbles, because crowding is what starts multi-cat tension in the first place. Give each cat somewhere to perch out of the others’ way and the whole thing runs more peacefully. A cat tree inside or beside it adds even more vertical territory; our picks for adding vertical climbing and perching enrichment work well here.
Key features: large modular frame, combinable for bigger builds, multiple shelf levels, weatherproof roof, three-plus cats.
Check the Aivituvin AIR52 on Amazon
Best wood-built catio: Coziwow wooden enclosure
Some people don’t want a wire cage sitting in the yard, and I get it. The Coziwow wooden catio looks more like a piece of garden furniture, and the wood it uses is weather-resistant and non-splintering, which matters when a cat is rubbing and climbing on it daily. If curb appeal is part of the decision, this is the one to look at.
Wood has real tradeoffs against metal-frame kits. It’s heavier, it needs the occasional reseal to keep water out, and it’s usually pricier for the same interior space. But it’s warmer to look at, it holds heat a little less brutally than an all-mesh tent, and a good wooden unit lasts years if you keep it sealed. Put it somewhere with afternoon shade and it’ll age well.
Key features: weather-resistant non-splintering wood, furniture-like looks, waterproof roof, one to two cats, needs periodic resealing.
Check the Coziwow wooden catio on Amazon
Portable catios: pop-up tents done right
Portable catios are their own category and deserve real attention, because they’re the cheapest way in and the easiest to get wrong. A pop-up mesh tent opens tool-free in about ten seconds, folds flat into a carry bag, and works on a patio, a lawn, or a campsite. Some three-tier versions give around 57 inches of vertical space with scratch-resistant mesh, which is genuinely useful for a cat who likes to climb.
My picks here are the LUCKITTY portable enclosure and the Tailtastic playpen, which adds a mesh tunnel loop the cat can circle back into instead of dead-ending at a wall. For budget or camping, the Kitty City Outdoor Mega Kit and the Outback Jack tent both do the basic job cheaply.
The heat warning is the whole ballgame with these. A covered mesh tent in direct sun heats up fast, faster than you’d guess, and a cat can overheat quietly. So: keep it in shade, make sure air actually moves through all sides rather than sitting still, and choose a tent with UV-resistant netting and a waterproof top cover so it doesn’t bake or rot. Raised flooring keeps the cat off hot or wet ground and extends the tent’s life. And the flat rule: never leave a cat alone in a pop-up. The zippers on cheap ones can be nosed open, and the mesh won’t stop a determined raccoon or a hawk. Treat it as supervised time, like a stroller or a leash. For that supervised-outdoor role, a well-fitted harness is the other good option; see our take on supervised leash time as a portable alternative.
Key features (portable class): tool-free 10-second setup, folds flat with carry bag, some with ~57” vertical and tunnels, UV-resistant mesh on the good ones, supervised use only.
Best indoor pen: Amazon Basics playpen
Not a true catio, and I’ll say so plainly: the Amazon Basics large cat playpen is a wire pen, and it feels like a kennel, not a patio. But it earns a spot for a specific job. If you’re fostering, socializing a new cat, or giving a recovering cat a safe multi-level space indoors, it’s cheap, collapsible, and rolls where you need it. Some people also park it on a covered porch as a temporary outdoor spot.
It’s got shelves, it folds down for storage, and it fits a small litter box for a foster setup. The frame can shake a bit when an enthusiastic cat launches off the top shelf, and a cat who hates cages will let you know. For its actual use case, though, indoor and temporary, it’s fine and priced right.
Key features: collapsible wire pen, multi-level shelves, rolls on casters, fits a small litter box, indoor and temporary use.
Check the Amazon Basics playpen on Amazon
How to choose: the safety facts a 2026 guide has to get right
This is where cheap catios quietly fail. Get these right and almost any decent kit will keep your cat safe.
Wire gauge and mesh size. Thin wire and wide gaps are the two ways predators get in. Look for 14-to-16 gauge wire, and 14-gauge galvanized if raccoons are around your area, because raccoons have hands and will bend thinner wire. Mesh openings should be no larger than half an inch. Bigger gaps let a raccoon reach a paw through, and small cats can push their heads into surprisingly large holes.
A real roof, always. Any catio a cat uses unsupervised needs a complete roof, solid or mesh. An open-top enclosure gives zero protection from above, and hawks and great horned owls can take kittens and small young cats. It’s uncommon with a full-grown cat, but the roof costs you nothing and closes the risk off completely, so there’s no reason to skip it. If the unit doesn’t come with a full top, it’s not finished.
Two-point locking on walk-ins. A full-height door with a single handle latch is a raccoon puzzle, and raccoons are good at puzzles. Use a two-point system: the latch plus a carabiner or a small padlock. It costs a few dollars and it’s the difference between a secure enclosure and a raccoon buffet.
Size, and the mistake everyone makes. People buy too small. For an active cat or more than one, aim for at least about 36 inches of depth and 50 inches of height, with both floor space and vertical climbing room. Cats use height as much as width, so a tall unit with shelves beats a wide short one.
Weatherproofing that lasts. UV-treated wire or netting, a waterproof roof, raised or rot-resistant flooring, and reinforced corners in wood or metal. These are what separate a catio that survives three winters from one that sags and rusts in one.
DIY versus buy: the real cost
The internet is full of gorgeous DIY catio builds, and if you love a weekend project and want a custom size, building is a real option. DIY genuinely undercuts a kit at medium-to-large sizes, if you already own the tools and skills. The catch is the hidden costs nobody photographs: a staple gun, a nailer, a post-hole digger, a saw, the hardware cloth, and the lumber you measure wrong and toss. Count your own hours at even a modest rate and the math shifts.
For a small or medium catio, a pre-built kit is usually the more cost-effective and much faster route for most owners. Buy if you want it up this weekend, done right, and warrantied. Build if the project is the point, or if no kit fits your exact space. There’s no shame in either; just don’t start a DIY expecting it to be free.
Placement and getting your cat to actually use it
Put the catio where it gets morning sun and afternoon shade if you can, because a spot that bakes all day goes unused in summer. Against a window or wall lets you connect it to the house; freestanding goes anywhere; a deck or patio works for apartments. Always give shade, some shelter from rain and wind, and water the cat can reach.
The safe route from house to enclosure matters. The cleanest version is a cat door in a window or wall feeding straight into an attached catio, so the cat comes and goes on its own. Short of that, a secured tunnel or just carrying the cat out works. Whatever the route, it should be as escape-proof as the enclosure itself.
For getting a hesitant indoor cat to use it, patience beats force. Feed meals inside, add a familiar blanket and a perch, and let the cat explore on its own clock; most come around within a couple of weeks. A little catnip can tip a nervous cat over the edge, our notes on using catnip to encourage a hesitant cat cover which forms work best. A litter box in the catio is a fine supplement for long sessions, but it should never replace the indoor boxes.
Two safety add-ons for any cat with outdoor access, even enclosed. A breakaway ID collar in case they ever get loose, covered in our guide to safe ID collars for cats spending time outdoors, and for real escape artists, a tracker; see how to find an outdoor-access cat that gets loose. And if you’re not ready to commit to a full enclosure yet, an indoor window perch is a cheap way to test how much your cat cares about the view first.
Frequently asked questions
Are catios worth it? For most indoor cats, yes. They give a cat what it actually wants outdoors, sun to lie in and birds to watch, without the traffic and disease that free-roaming brings. They also cut down on door-dashing and yowling. The one iffy case is a very shy cat who ignores windows, but a small window box is cheap to test.
Are window catios worth it for apartments? For a renter with no yard, often yes. A window-box catio bolts onto the outside of a window and lets the cat step out into a screened box that hangs off the wall, using no floor space. It suits one cat that mainly wants to sit outside and watch the street. Just know it takes over the window, it’s small, and a heavier cat needs a mount rated for its weight.
How much does a catio cost? Pre-built kits run about $150 to $900 and up. Compact freestanding and pop-up tents sit around $150 to $300, mid-size walk-ins about $300 to $600, and large modular or wood-built units $600 to $900 and past it. Budget extra for shade cloth, a roof cover, shelves, and a cat door.
Is it cheaper to build or buy? DIY only wins at medium-to-large sizes, and only if you own the tools and have the time. Hidden costs (staple gun, nailer, wasted lumber, your labor) mean a kit usually beats DIY for small and medium builds. Buy for speed and simplicity; build for a custom size or the love of the project.
Do indoor cats need one? Not strictly, but they benefit a lot. Indoor boredom shows up as overgrooming, food obsession, fighting with housemates, or 3am zoomies, and a catio is one of the better enrichment fixes going. A cat with lots of vertical space and daily play may be fine without one.
How big should a catio be? Bigger than you think. Buying too small is the classic mistake. For an active or multi-cat setup, target at least about 36 inches of depth and 50 inches of height, with vertical climbing room, not just floor. When unsure, size up.
Related reading
- Best cat doors, to connect an attached catio so your cat comes and goes on its own.
- Best cat window perches, the cheap indoor test before committing to a full catio.
- Best cat GPS trackers, backup for the day an outdoor-access cat gets loose.
- Best cat harnesses, for supervised leash time as a portable alternative.
- Best breakaway cat collars, safe ID for cats spending time outdoors.
- Best cat trees for senior cats, vertical climbing and perching to pair with a catio.
- Best catnip, to coax a hesitant cat into a new enclosure.