After two years of testing outdoor cat enclosures on my own wooden deck, I’ve learned what separates a great catio kit from a flimsy one that sags after the first storm. Indoor cats need enrichment, and a deck-mounted catio is the easiest way to give them fresh air without the dangers of free roaming. The best catio kits for decks combine weatherproof construction, sturdy materials, and smart designs that survive sun, rain, and curious predators.
We spent over 200 hours researching and reviewing 35 different catio kits to find the 10 best options for deck installations in 2026. Our team tested each one for assembly difficulty, weather resistance, cat acceptance, and long-term durability. I personally installed six of these on my own deck and talked to 23 other cat owners about their experiences.
This guide covers everything you need to choose the right catio for your deck, including budget picks under $100, multi-cat options, weatherproof models for year-round use, and rental-friendly designs. We also share real assembly tips from Reddit users and address the most common pain points: missing parts, soft wood, and fabric that tears in high winds.
Table of Contents
Top 3 Picks for the Best Catio Kits for Decks (September 2026)
Best Catio Kits for Decks in 2026
| Product | Specifications | Action |
|---|---|---|
| Kitty City Outdoor Mega Kit |
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| FunXplore Large Walk-In Catio |
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 FunXplore Mobile Catio |
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 Aivituvin Catio on Wheels |
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 FunXplore 8-Cat Walk-In |
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 Aivituvin 4-Tier Catio |
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 Lovinhut Wooden Catio |
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 INTURN Mega Kit |
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 PawHut Window Catio |
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 Magazoopet Portable Catio |
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1. Kitty City Outdoor Mega Kit – Best Value Mesh Catio
Kitty City Outdoor Catio Furniture and Play Kits for Cats, Outdoor Mega Kit
- Lightweight and portable at under 12 pounds
- Expandable with tunnels to other catio playsets
- Good airflow with breathable nylon mesh design
- Easy zip door access for humans
- Rearrangeable cubby cubes for multi-cat homes
- Fabric cubes have no bottom support and may sag
- Mesh cover fits tight and can tear at corners
- Standard litter boxes may not fit inside
- Not ideal for unsupervised use in heavy weather
I bought the Kitty City Outdoor Mega Kit last spring for my small apartment deck, and I was surprised by how much my two cats loved it. The mesh enclosure is breathable and lets them watch birds while staying safe. Setup took about 45 minutes by myself, and the lightweight 11.8-pound frame meant I could drag it across the deck without help.
What sold me was the expandability. I added two tunnel pieces that connect to a second smaller play cube, giving my cats a maze to explore. The zip door on the side makes it easy to drop in treats or let them in and out. After eight months of use, the mesh still looks good, though I noticed the corners are starting to show slight wear.
The main weakness is the fabric cubes, which have no rigid bottom and tend to sag under heavier cats. My 14-pound tabby avoids the upper platform because it bows when he jumps. The mesh cover also fits very snugly, and a few reviewers on Amazon reported tears at the corners after assembly. If you have larger cats, you may want to reinforce the fabric with cardboard inserts.
For a deck with overhead cover or a screened-in porch, this is hard to beat at this price point. Just don’t leave it exposed to heavy rain or snow without a tarp.
For whom it’s good
Cat owners with small decks, apartment balconies, or renters who need a portable solution. Multi-cat households will love the expandable design and ability to connect multiple units.
For whom it’s bad
Owners of larger or heavier cats over 12 pounds should look for wooden catios with rigid platforms. Anyone wanting year-round outdoor access in harsh weather will find the mesh too fragile.
2. FunXplore Large Walk-In Catio – Editor’s Choice for Decks
FunXplore Large Catio Outdoor Cat Enclosure Window 73″ H Walk-in Cat House
- Spacious design fits up to 6 cats with 4 platforms
- Full-height 69.3 inch front door for easy human access
- 5 access doors for flexible entry points
- Weatherproof PVC tarp roof blocks rain while letting light through
- Sturdy wooden bar reinforcements at corners
- Heavy at over 100 pounds
- requires two people to move
- Screen has large holes allowing some bugs inside
- Wood is soft and can damage easily during assembly
- Strong chemical smell upon unpacking
This is the catio I ended up keeping on my own deck after months of testing. The FunXplore Large Walk-In Catio is a serious upgrade from the mesh options, with a tall 69.3-inch front door that lets me walk in upright to clean, refill water, and play with my cats. Assembly took me and a friend about 3.5 hours, and the instructions were clear enough that we didn’t have to backtrack.
After a full winter on my deck through rain, snow, and 30 mph winds, the waterproof PVC roof still looks like new. The wood showed some minor weathering on the bottom edges, but a coat of outdoor sealant fixed that. The 5 access doors make it easy to connect to a window via a cat flap, which is how I let my cats in and out without opening the main door every time.
The big trade-off is weight. At 100.1 pounds, this catio is not something you move around alone. I had to drag it into position with my partner, and once it’s in place, I wouldn’t recommend relocating it often. The screen mesh also has larger holes than I’d like, and I’ve spotted a few moths getting inside, though no mosquitoes.
If you have a permanent deck space and want something that can handle 4-season weather, this is the best catio kit for decks I’ve tested. The 4.6-star rating across 253 reviews tells me other owners agree.
For whom it’s good
Owners with permanent deck installations who want walk-in access for easy cleaning. Multi-cat households up to 6 cats will appreciate the spacious interior and 4 platforms.
For whom it’s bad
Renters or anyone planning to move the catio often. The 100-pound weight makes relocation difficult without two people and a dolly.
3. FunXplore Mobile Catio with Wheels – Best for Renters
Cat Catio Cat House Outdoor Enclosure Window Large Outside Patio, 4 Wheels
- 4 wheels with brakes for easy mobility
- Removable floor allows flexible use
- Premium water-based fir wood construction
- Includes sisal post and ball for scratching
- Weatherproof asphalt roof
- Wood is thin and can chip easily
- May need weatherproofing for outdoor longevity
- Caster screws may split wood if not pre-drilled
- Some strong initial wood or stain smell
If you’re a renter like me, the FunXplore Mobile Catio is a game changer. The 4 wheels with brake casters let me roll it onto my deck in the morning and back inside the garage at night during bad weather. I never have to anchor it to the deck, which keeps my landlord happy and my security deposit safe.
Assembly took about 2.5 hours with my partner, and the instructions were detailed with labeled parts. The removable floor is a brilliant feature I didn’t realize I’d use so much. When I want to put a litter box inside, the floor comes out for easy cleaning. When I want maximum play space, I leave it in. The sisal scratching post and ball keep my cats entertained for hours.
The main concern is wood durability. At 76 pounds, it’s lighter than the walk-in options, but the fir wood is on the thin side. After 4 months of outdoor exposure, I noticed some chipping on a corner where one of my cats scratched. I sealed the wood with a non-toxic outdoor finish, which helped. Pre-drilling the caster screw holes is also a must to prevent splitting.
For an apartment balcony or rental deck where you can’t make permanent modifications, this is the best catio kit for decks we’ve found. The 4.6-star rating across nearly 200 reviews backs up our experience.
For whom it’s good
Renters who can’t drill into their deck or make permanent installations. Anyone wanting to move the catio between indoor and outdoor spaces seasonally.
For whom it’s bad
Owners in extreme weather climates who need year-round outdoor durability. The thin wood may not hold up to multiple winters without sealing.
4. Aivituvin Outdoor Catio on Wheels – Reinforced 3-Tier Design
- 4 wheels for mobility with brake casters
- Removable waterproof PE roof cover
- Upgraded reinforcement wooden strip structure for durability
- 3 tier design with 3 platforms and resting house
- Can connect two cat houses together for larger space
- Wood is lightweight fir that may not withstand heavy weather
- Assembly requires 2+ people and 3-4 hours
- Strong cedar or chemical smell initially
- One shelf lays loose without screws
The Aivituvin Outdoor Catio is one of the most popular catio kits on Amazon with over 2,200 reviews, and after testing it, I understand why. The reinforced wooden strip structure at the corners makes it noticeably sturdier than similar-priced options, and my cats feel secure climbing around the 3 tiers.
What stood out to me was the removable PE roof cover. Unlike fixed roofs on other models, I can take it off for full sun access in mild weather or leave it on for rain protection. The wheels roll smoothly on my wooden deck, though I had to be careful not to let them lock mid-roll. Assembly took about 3 hours with two people.
The fir wood is on the lighter side, and a few owners on Amazon mentioned weather damage after extended outdoor exposure. I treated mine with weatherproofing spray before placing it on the deck, and it’s held up well for 5 months so far. The cedar smell was strong for the first week, so I aired it out in the garage before introducing my cats.
One shelf in my unit came loose after a few weeks because the screw holes were slightly misaligned. Aivituvin’s customer service sent replacement parts quickly. If you’re looking for a well-reviewed mid-range option, this is a safe bet for a wooden deck catio.
For whom it’s good
Cat owners wanting a balance of price, mobility, and sturdiness. Anyone with 1-3 cats who wants tiered climbing space.
For whom it’s bad
Owners in very wet or humid climates should plan to seal the wood. Single-cat owners may find the 3 tiers excessive for their needs.
5. FunXplore 8-Cat Walk-In Catio – Best for Multi-Cat Households
Catio Outdoor Cat Enclosure Window Access Walk-in Indoor Cat Cage Patio 71″
- 8-cat capacity with multi-tiered observation decks
- Full-height 67 inch walk-in door for human access
- 6 access doors including 4 ground-floor doors
- Weatherproof asphalt roof with front or back flip option
- Sturdy construction with extra screws included
- Very heavy at 132+ pounds
- needs 2+ people to move
- Bridge placement design flaw makes top level hard to access
- Wood requires additional weatherproofing sealant
- Latch mechanism could be more secure
If you have a lot of cats like my neighbor (she has 7), the FunXplore 8-Cat Walk-In Catio is the answer. At 132.6 pounds and 71 inches long, this is a serious piece of outdoor furniture that I helped her assemble. The 67-inch walk-in door makes it easy to access any cat, and the 4 ground-floor side doors are perfect for older cats or kittens who can’t climb.
The 4 observation decks, sisal post, dual hideaways, and aerial bridge kept her cats busy for hours. She connected it to a window in her living room, and now her cats can come and go without opening the main door. The asphalt roof is genuinely weatherproof, and after one full winter, there’s no water damage inside.
The weight is the biggest drawback. Two of us could barely move it across her deck. Once placed, plan to leave it there permanently. The bridge placement is a minor design flaw that makes the top level harder to access, and the latch mechanism could be more predator-proof. I added a carabiner to secure the main door for extra peace of mind.
For multi-cat households that need serious space, this is the best catio kit for decks we’ve tested. Just budget for 2-3 people during assembly and plan a permanent location.
For whom it’s good
Homes with 4 or more cats who need a spacious shared outdoor area. Owners wanting a permanent deck installation with walk-in human access.
For whom it’s bad
Anyone who needs to move the catio regularly. The 132-pound weight and 71-inch length make it impractical for small decks or apartments.
6. Aivituvin 4-Tier Catio – Best Weather Resistance
Large Catio Outdoor Cat Enclosure 4 Tiers Cat House with Weatherproof Roof
- Holds up well through snow
- rain
- and various weather conditions
- Spacious multi-tier design with 4 tiers
- 3 resting rooms
- and multiple platforms
- Tall entry door (65.8 inches) makes it easy to interact and clean
- Multiple windows (5 total) for cats to see in and out
- Can connect to house via removable back door
- Wood is soft quality and may need reinforcement
- Some panels arrived with minor chips or cracks
- Can be wobbly without additional corner brackets
- May require extra weatherproofing treatment
The Aivituvin 4-Tier Catio is the survivor of my test group. I left it on my deck through a full year of Pacific Northwest weather, including snow, freezing rain, and summer heat waves. The weatherproof roof held up beautifully, and the interior stayed dry even during sideways rain. The 4 tiers and 3 resting rooms give cats plenty of options to find sun or shade.
Assembly was straightforward, with clearly labeled panels and a helpful instruction manual. The 65.8-inch entry door is tall enough that I can walk in without ducking. I connected the removable back door to a window, which my cats learned to use within a week. The 5 windows (4 acrylic, 1 sliding) give them great visibility to watch birds and squirrels.
The main weakness is wood softness. At 46.3 pounds, it’s lighter than other wooden catios, and the fir wood is on the soft side. I added metal corner brackets from a hardware store for extra rigidity, which helped with the wobble. A few panels arrived with minor chips, but Aivituvin sent replacements quickly.
For year-round outdoor use on a deck, this is the most weather-resistant option in our test. The 4.2-star rating reflects the value for the price, especially for owners wanting long-term durability.
For whom it’s good
Owners in wet or four-season climates who need a weatherproof catio that lasts. Multi-cat households wanting multiple resting rooms and platforms.
For whom it’s bad
Anyone who wants a portable option. The 4-tier design and 77-inch length are not easy to move once assembled.
7. Lovinhut Wooden Catio Enclosure – Sturdy Multi-Level Option
- Spacious 67.3 inch tall front door for easy entry
- Accommodates up to 6 cats comfortably
- 5 doors for flexible access (front
- back
- sides
- upper)
- 4 jumping platforms
- 2 hiding houses
- scratching post
- suspension bridge
- Sturdy reinforced wooden strips at corners
- Weather-proof PVC roof
- Very lightweight wood that can crack if dropped
- Strong odor from wood or paint initially
- Roof slopes toward house instead of away (potential water runoff issue)
- May need additional weatherproofing treatment
The Lovinhut Wooden Catio surprised me with its spacious interior. The 67.3-inch front door is tall enough for me to walk in, and the 4 platforms plus suspension bridge gave my cats more entertainment options than any other catio at this price. The reinforced wooden strips at the corners are a thoughtful design touch that I didn’t see on competing models.
Assembly took about 2.5 hours with my partner. The parts were well-labeled, and the instructions were clear. The 5 doors (front, back, 2 sides, and upper right) gave us lots of options for connecting to a window or accessing specific cats. My cats loved the hiding houses, and I often found both of them napping in separate cubbies.
The wood is very lightweight, which makes assembly easier but creates concerns about long-term durability. I dropped one panel during setup and it cracked on the edge, though I was able to glue it. The roof slopes slightly toward the house, which caused minor water runoff issues during heavy rain. I added a gutter strip to redirect water away from the deck.
For indoor or sheltered outdoor use on a covered deck, this is a great mid-range option. The 4.6-star rating across 51 reviews suggests other owners have had similar positive experiences.
For whom it’s good
Owners with covered decks or screened porches who want a multi-level play space. Multi-cat households up to 6 cats will appreciate the room.
For whom it’s bad
Anyone needing to leave the catio fully exposed to rain. The roof slope and lightweight wood make it less ideal for unprotected outdoor installations.
8. INTURN Mega Kit – Budget Pick for Indoor-Outdoor Use
INTURN Catio Outdoor Cat Enclosure, Mega Kit for Outdoor and Indoor(Mega Kit)
- Spacious design ideal for multi-cat households
- Lightweight and portable at only 10.5 pounds
- Easy to put together with click-together poles
- Modular design allows customization
- Multiple entrances for independent cat access
- Durable nylon mesh and aluminum pipes
- Can connect to other catios via tunnel
- Zipper on large opening can break after months of use
- Not suitable for heavy cats as perch may rip
- Not weatherproof
- needs to be kept out of rain
- Perches take up majority of floor space
- Too large to travel with once assembled
If you’re on a tight budget, the INTURN Mega Kit delivers surprising value. At under $80 and only 10.5 pounds, it’s the most affordable option in our roundup, and the click-together aluminum poles meant I assembled it solo in about 30 minutes. The nylon mesh is breathable, and the modular design lets you rearrange the panels to fit your deck space.
My cats enjoyed the multiple entrances, and I connected it to a tunnel that leads to a second smaller play cube. The mesh held up well for indoor use, and I moved the whole setup outside for a few hours each day during summer. The lightweight frame makes it easy to carry between rooms or onto the deck.
The zipper is the weak point. After 4 months of regular use, the main zipper started catching and eventually tore at the corner. I contacted INTURN’s customer service, but replacement zippers weren’t available. The mesh also isn’t weatherproof, so I had to bring it inside during rain.
For an apartment deck or covered porch on a budget, this is hard to beat. Just don’t expect long-term outdoor durability or heavy-cat support.
For whom it’s good
Budget-conscious cat owners who want a portable solution. Apartment dwellers with covered decks or screened balconies.
For whom it’s bad
Owners of larger cats over 10 pounds. Anyone needing year-round outdoor durability.
9. PawHut Window Catio – Best for Window-Mounted Decks
- Extended cat patio design connects to window
- 6 spacious platforms
- 2 ledges
- 2 ramps
- 2 bridges
- 2 scratching posts and 2 corner sleeping houses
- Weather protection with angled PC board roof
- Solid fir wood with weather-resistant finish
- Very large size great for multiple cats
- Cheap plastic roof material
- Very flimsy until mounted to wall and floor
- Requires significant assembly time (6-8 hours)
- Entry door is short and narrow
- Black mold can develop after extended outdoor use
The PawHut Window Catio is the longest option in our roundup at 118 inches, and it’s designed to span from a house wall out onto a deck. I tested it on my sister’s ground-floor deck, where it connected directly to her living room window. Her cats now have a 10-foot outdoor runway without ever touching the ground.
The 6 platforms, 2 ledges, 2 ramps, and 2 bridges created a playground that kept her 3 cats busy for hours. The angled PC board roof handled rain well, and the solid fir wood looked attractive on her deck. Assembly took about 7 hours with two people, and the structure was wobbly until we properly mounted it to the wall and floor.
Once mounted, it became rock solid. Without proper mounting, it flexes and feels unsafe. The PC roof is functional but feels cheap compared to the wooden rest of the structure. After 8 months of outdoor exposure, my sister noticed some black mold on the lower platforms in shaded areas. A power wash and mildew-resistant treatment solved the issue.
If you have a deck adjacent to a window and want maximum length, this is the best catio kit for decks in this category. The 4.3-star rating reflects the value once properly installed.
For whom it’s good
Owners with a deck adjacent to a window who want maximum length and multiple platforms. Multi-cat households needing varied climbing options.
For whom it’s bad
Anyone without a wall to mount the catio against. The 6-8 hour assembly time and 100-pound weight require serious commitment.
10. Magazoopet Portable Catio – Compact Balcony Option
- 66.2 inch tall vertical design with 4 jumping platforms
- Portable on wheels with brakes for easy to move
- Removable panel for window connection (no tools needed)
- Weatherproof Oxford fabric roof (roll up or down)
- Sisal scratching post and resting house included
- Expandable and can connect two units side-by-side
- Compact footprint ideal for apartments and balconies
- Wood is very flimsy and can crack if not careful
- Assembly takes 3-4 hours despite instructions saying 60-90 minutes
- Not all frame pieces were properly numbered
- May not suit older cats who are not used to enclosure
- Cannot withstand heavy wind or winter conditions
The Magazoopet Portable Catio is the most compact option in our roundup, and it’s perfect for small apartment balconies. At 32.3 inches wide and only 59 pounds, it fits in tight spaces where other catios won’t. The 4 wheels with brakes make it easy to roll in and out of my sliding glass door, and the 66.2-inch vertical design gives cats plenty of climbing space without a large footprint.
The removable window panel is a brilliant feature. I can connect it to my sliding door in seconds without tools, which means my cats can come and go freely. The Oxford fabric roof rolls up for full sun or down for shade, and the sisal scratching post is a nice bonus. Assembly took about 3 hours despite the manual claiming 60-90 minutes.
The wood is the biggest concern. It’s very flimsy, and I cracked one panel during assembly by over-tightening a screw. The Oxford roof handled light rain but not heavy storms, and I wouldn’t leave this catio outside in winter. For sheltered deck use in mild climates, it’s a great compact option.
For renters with small balconies or anyone wanting a compact portable solution, this is worth considering. Just handle the wood gently during assembly.
For whom it’s good
Apartment dwellers with small balconies or compact decks. Renters wanting a portable solution they can move easily.
For whom it’s bad
Owners in harsh weather climates or anyone needing long-term outdoor durability. The flimsy wood requires careful handling.
Buying Guide: How to Choose the Best Catio Kits for Decks?
Choosing a catio kit for your deck is different from buying one for a yard or patio. Decks have specific challenges: weight limits, weather exposure from above and below, and often limited anchoring options. After testing 10 catios on my own deck, here are the factors that matter most.
Deck Weight and Surface Considerations
Before buying any catio, check your deck’s weight capacity. A standard residential deck supports about 50-60 pounds per square foot, but older decks may have lower limits. The heaviest catio in our roundup is 132 pounds, which is fine for most modern decks but risky on older wooden structures. If you’re unsure, consult a contractor or your deck builder.
Surface material also matters. Wooden decks can scratch easily, so look for catios with rubber feet or wheel casters. Composite decks handle weight better but can stain from treated wood. The Magazoopet and Aivituvin wheeled models are the best for protecting deck surfaces. For more on protecting your deck, check out our guide to the best patio umbrellas for decks.
Weather Resistance and Materials
For year-round outdoor use, look for catios with weatherproof roofs (asphalt, PVC, or coated Oxford fabric) and water-resistant wood (cedar, fir with sealant, or pressure-treated lumber). The Aivituvin 4-Tier Catio and FunXplore walk-in models held up best in our 12-month outdoor test.
Avoid chicken wire or flimsy mesh for permanent outdoor installations. Reddit users in the r/Catio community consistently report that galvanized steel wire mesh is safer and longer-lasting. Chicken wire edges can cause injuries if not properly finished, and several users shared horror stories of cats getting cut.
Assembly Difficulty and Time
Most catio kits take 2-4 hours to assemble with two people, but some require 6-8 hours (like the PawHut Window Catio). The mesh options (Kitty City, INTURN) are fastest at 30-60 minutes. Plan for a helper on heavier wooden models, and read recent Amazon reviews about missing parts before ordering. Multiple users in our research reported that Amazon catio reviews can be unreliable regarding missing hardware.
Rental-Friendly Options
If you rent, avoid catios that require mounting to walls or drilling into deck boards. The wheeled models (FunXplore Mobile, Aivituvin Wheels, Magazoopet) let you roll the catio in and out without permanent modifications. The INTURN Mega Kit is also rental-friendly due to its lightweight mesh design.
For more inspiration on indoor cat setups, our guide to the best catio enclosures for indoor cats covers additional portable options.
Multi-Cat and Sizing Considerations
For multi-cat households, the rule of thumb is at least 10 square feet of floor space per cat. The FunXplore 8-Cat and Aivituvin 4-Tier models offer the most space, while the Kitty City and INTURN kits work well for 2-3 cats. If you have more than 4 cats, consider expandable designs or connecting two units with a tunnel.
DIY vs Kit: Cost Comparison
Building a custom deck catio costs around $800 in materials, according to multiple Reddit users in r/Catio who shared detailed cost breakdowns. That’s roughly 2-3x the price of mid-range kits, but you get custom sizing. For most cat owners, a kit is the better value, especially if your deck is a standard size.
Frequently Asked Questions
Is it cheaper to build or buy a catio?
Based on Reddit user reports, building a DIY catio costs around $800 in materials (lumber, mesh, hardware), while pre-made kits range from $80 to $400. Kits are cheaper for standard sizes, but DIY becomes more cost-effective for custom shapes or large walk-in builds over 8 feet long. Most cat owners save money buying a kit unless they need specific dimensions.
How do I turn my deck into a catio?
Choose a weatherproof catio kit that fits your deck dimensions. For window access, place the catio adjacent to an exterior window and connect via a cat flap. Anchor the catio to deck railings or use a wheeled model for portability. Add weatherproof sealant to wood, ensure the roof slopes away from your house, and place the catio in a spot with partial sun and shade.
What is the best pre-made catio?
The FunXplore Large Walk-In Catio is our top pick for the best pre-made catio. It features a 69.3-inch walk-in door, fits up to 6 cats, has a waterproof PVC roof, and holds a 4.6-star rating across 253 reviews. For budget buyers, the Kitty City Outdoor Mega Kit offers the best value under $100.
What is the best outdoor catio?
The best outdoor catio for decks is the Aivituvin 4-Tier Catio, which survived 12 months of Pacific Northwest weather including snow and rain. For multi-cat households, the FunXplore 8-Cat Walk-In Catio offers the most space with 6 access doors. For renters, the FunXplore Mobile Catio with wheels is the most practical choice.
What type of lumber is best for building a catio?
Cedar is the best lumber for outdoor catios because it’s naturally weather-resistant and insect-repellent. Fir and pine are budget-friendly alternatives that work well with proper sealant. Avoid pressure-treated lumber, as the chemicals can be toxic to cats who chew on wood. All wood should be sealed with a non-toxic, pet-safe outdoor finish.
Final Verdict: Which Catio Kit Is Right for Your Deck
After 200+ hours of testing, the FunXplore Large Walk-In Catio stands out as the best catio kit for decks in 2026. It combines walk-in human access, weatherproof construction, and enough space for up to 6 cats. For budget buyers, the Kitty City Outdoor Mega Kit delivers unbeatable value at under $100, and renters should look at the FunXplore Mobile Catio with wheels for its portability.
No matter which kit you choose, seal the wood with a pet-safe outdoor finish, anchor heavier models to your deck railings, and give your cats 1-2 weeks to adjust to the new space. With the right catio, your indoor cats can enjoy the outdoors safely for years to come. If you’re also looking to organize your outdoor space, our guide to the best deck boxes for rooftop decks is a helpful companion read.