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Why Are Some DIY Catios Not Safe: Common Mistakes That Put Cats at Risk | DIY Catio Safety Tips

Building a DIY catio can be a rewarding project that allows your feline friend to enjoy the outdoors safely. However, not all DIY catios are created equal. Mistakes in design, materials, and construction can put your cat at risk of harm or escape. In this blog, we’ll discuss the most common mistakes in DIY catio building and how to avoid them, ensuring your furry friend stays happy and protected. Prioritizing DIY catio safety is key to ensuring your feline friend is protected.

Two Abyssinian cats in a wooden, wire-enclosed shelter. One cat curiously looks forward, the other explores. Sunlight brightens the scene.

1. Using Harmful Materials

One of the most overlooked aspects of building a DIY catio is the choice of materials. Some materials that seem practical can actually be harmful to your cat:

  • Pressure-Treated Lumber: While durable, this type of wood is treated with chemicals that can be toxic to cats if chewed or scratched.

  • Toxic Paints and Stains: Paints and stains with high VOC (volatile organic compounds) levels can release harmful fumes, especially in enclosed spaces. Always opt for pet-safe finishes.


2. DIY Catio Safety: Avoiding Gaps Too Large

Cats are escape artists, and even the smallest gaps can provide an opportunity for them to wriggle through or get stuck.

  • Ensure that all gaps in your catio are no larger than 1 inch to prevent escapes or injuries.

  • Pay special attention to doors, hinges, and mesh edges where gaps can form over time.


Pro Tip: Use high-quality mesh with small openings (like 1” x 1” galvanized wire) to keep your cat safely enclosed.


3. Not Making It Predator-Proof

Your cat isn’t the only one interested in the catio. Local wildlife, such as raccoons, hawks, or even snakes, may see the catio as an opportunity.

  • Mesh Strength: Choose heavy-duty, galvanized, PVC-coated mesh to withstand potential attacks from predators.

  • Blocking Small Predators: Install fine mesh or solid barriers at the base of the catio to prevent snakes or other small animals from entering.

  • Roofing: Ensure the catio has a secure roof to protect against aerial predators.

Pro Tip: Research the wildlife in your area to choose the right materials and design for maximum safety.

Cat sleeping on a carpeted shelf in a wooden enclosure. The relaxed pose and serene expression convey a calm mood.

4. Ignoring Weather and Location Factors

The location and design of your catio should account for weather conditions to keep your cat comfortable and safe:

  • Shade and UV Protection: Cats need shaded areas to avoid overheating in the summer.

  • Rainproofing: Use polycarbonate panels or similar materials to create a weather-resistant roof.

  • Anchor It Down: High winds can topple a poorly secured catio, so make sure it’s anchored securely to the ground or your home.

Pro Tip: Position your catio in a spot that offers a mix of sunlight and shade, and ensure proper drainage to avoid water pooling.


5. Overlooking Security Features

A secure catio isn’t just about keeping your cat in; it’s also about keeping everything else out. Common security mistakes include:

  • Flimsy Latches: Use heavy-duty latches on all doors to prevent clever paws (or predators) from opening them.

  • Weak Fasteners: Staples or lightweight screws can loosen over time. Use weather-resistant screws and bolts to ensure durability.


6. Not Monitoring Your Cats

Even the safest catio requires regular supervision to ensure your cat’s well-being:

  • Install Cameras: Set up cameras to monitor your cat’s activity while you’re away.

  • Set Curfews: Don’t leave the catio open at night; bring your cats inside to protect them from nocturnal predators and weather changes.

  • Frequent Checks: Regularly check on your cat while they’re in the catio to ensure they’re safe and comfortable.

Pro Tip: Make monitoring a habit by setting reminders to check your cameras or physically inspect the catio throughout the day.


7. Skipping Regular Maintenance

Even the best-built catio needs regular maintenance to stay safe:

  • Inspect for Damage: Check the structure, mesh, and fasteners regularly for wear and tear.

  • Clean the Space: Remove dirt, leaves, and waste to prevent pests and bacteria buildup.

  • Reapply Finishes: Reapply non-toxic paints or stains every few years to keep the wood in good condition.


8. Forgetting Enrichment and Comfort

A safe catio is also a happy catio. Skipping features that provide stimulation can lead to a bored or stressed cat:

  • Add Vertical Spaces: Include shelves, ramps, and perches for climbing and exploring.

  • Incorporate Hiding Spots: Add cozy boxes or tunnels for your cat to retreat to.

  • Provide Toys and Scratch Posts: Keep your cat engaged with hanging toys, scratch posts, and other interactive elements.

Pro Tip: Rotate toys and accessories periodically to keep your cat interested. Check out our favorite enrichment accessories for inspiration.


While building a DIY catio is a great way to create a safe outdoor space for your cat, it’s essential to avoid these common mistakes. From choosing the right materials to ensuring predator-proof design, attention to detail can make all the difference. By building a secure and enriching catio, you’ll give your cat the outdoor adventures they crave without compromising their safety.

DIY Catio Plans on screen; two tablets display building instructions and diagrams. Wooden catio model shown with cats inside. Clean, modern layout.


Ready to build your own catio? Check out our DIY catio plans and recommended materials to get started safely and effectively!






Outline of a cat's head above the text "The Catio Company" in bold, black font on a white background. Minimalistic and playful design.

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