Designing a catio for cat behaviour

A catio that is safe but dull will sit empty. Designing around how cats behave makes the difference — and the principles are well established.

What cats need

Feline veterinary bodies have set out what a cat's environment should provide. The Feline Environmental Needs Guidelines published in 2013 by the American Association of Feline Practitioners (AAFP) and the International Society of Feline Medicine (ISFM) describe five pillars:

1. A safe place — somewhere to retreat, hide and feel secure.
2. Multiple, separated key resources — food, water, toileting, scratching, play and resting areas, spread out rather than together.
3. Opportunity for play and predatory behaviour.
4. Positive, consistent and predictable human-cat interaction.
5. Respect for the cat's sense of smell.

A catio can help with almost all of them.

Go up

Cats use height to feel safe and to watch. Provide shelves and perches at several heights, with comfortable steps between them. A high lookout with a view of the garden is often the favourite spot.

• Shelves wide enough to lie on, and deep enough to turn around.
• Steps an easy jump apart — smaller for seniors.
• A ramp to the first level for kittens, seniors and cautious cats.

Somewhere to hide and rest

A box, cubby or covered bed in a quiet corner gives a nervous cat a reason to stay. Put a resting place in the shade and one in the sun.

Scratch, play and smell

• A sturdy scratching post or panel.
• Places to stalk: planters with cat grass, a tunnel, a box with a hole.
• Cat-safe plants to sniff and nibble — see the planting guide.

Multi-cat catios

Cats who live together do not always want to share space. Reduce tension by:

• Giving every high shelf two ways off — avoid dead ends where one cat can corner another.
• Providing more resting and hiding places than cats.
• Spreading resources out: water, litter and scratching in more than one place.
• Adding visual barriers so a cat can rest out of sight.

See the multi-cat template.

Senior and less mobile cats

• Small step-ups or ramps instead of jumps.
• Wide, non-slip shelves and resting landings.
• Water, a bed and litter on the lowest level.
• A warm, sheltered corner — older cats feel temperature more.

See the senior-cat template.

Introducing the catio

Let cats explore at their own pace, supervised, with familiar bedding inside. Short, positive visits first. Watch how they use it, then adjust the layout.

How OpenCatio3D helps

Furniture in OpenCatio3D has real heights and sizes, and the welfare rules use your cat profiles: they look for resting and hiding places, several heights, alternative routes in multi-cat homes, and gentle access for seniors.

Frequently asked questions

How high should shelves be in a catio?

Use several heights. Steps between levels should be comfortable for your cats — much smaller for seniors, with ramps where needed.

How do I stop cats fighting in a catio?

Give them space and choices: two routes to every level, more resting places than cats, spread-out resources and places to hide. If tension continues, ask your veterinarian or a feline behaviour professional.

Will my cat use a catio?

Most cats enjoy one, but some need time. Make it inviting with shade, height, hiding places and familiar bedding, and keep early visits short and supervised.