Top 5 Cat Flaps

Peter Armani | 08-01-2026

Cat flaps offer a simple way to give your feline friend more independence while maintaining control over their access. With options ranging from basic two-way doors to advanced locking systems, choosing the right cat flap can make life easier for both you and your pet. In this guide, you’ll find a comparison of popular cat flaps, highlighting their everyday practicality, ease of installation, and features that matter most to cat owners.

Editor's Choice
Depets Large Cat Door, 4 Way Locking
Depets Large Cat Door, 4 Way Locking
Premium Pick
Lessmon Thin Cat Door for Windows and Sliding Doors
Lessmon Thin Cat Door for Windows and Sliding Doors
Budget Pick
Depets Medium Cat Flap Door, Magnetic Lock
Depets Medium Cat Flap Door, Magnetic Lock

Top 5 Cat Flaps

We researched and compared the top products in the Cat Flaps category to provide you with these recommendations.

1. Depets Large Cat Door, 4 Way Locking

Spacious Four Way Access
Depets Large Cat Door, 4 Way Locking

Made from smooth ABS plastic, this cat flap feels sturdy and is suited for everyday use in busy households. The large opening accommodates bigger cats or even small dogs, while the transparent flap allows pets to see through before entering. Its four-way locking system gives you flexibility to manage your pet's access throughout the day.

What We Like:

  • Four-way locking for versatile access
  • Large opening fits bigger cats
  • Transparent flap for visibility
  • Weather-resistant exterior
  • Brush strip reduces noise

What Could Be Improved:

  • May require precise measuring for installation
  • Not ideal for very thick doors

2. Lessmon Thin Cat Door for Windows and Sliding Doors

Slim Window Friendly Design
Lessmon Thin Cat Door for Windows and Sliding Doors
9.5

Lessmon

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This slim cat door is designed for easy fitting in windows, sliding doors, or thin wooden doors. The ABS plastic construction feels durable, and the included sealing strip helps keep out drafts and odors. Its four locking modes offer flexibility, and installation is straightforward with the provided template and hardware.

What We Like:

  • Suitable for windows and sliding doors
  • Slim profile fits thinner panels
  • Four locking modes for control
  • Sealing strip helps with insulation
  • Simple installation process

What Could Be Improved:

  • May not suit larger cats
  • Limited to thinner door types

3. Depets Medium Cat Flap Door, Magnetic Lock

Quiet Magnetic Closure
Depets Medium Cat Flap Door, Magnetic Lock

This medium-sized cat flap features a magnetic closure that helps reduce noise and keeps the flap securely shut. The transparent panel allows pets to see through, and the four-way locking system gives you control over their access. It's a practical option for interior doors or walls up to a moderate thickness.

What We Like:

  • Magnetic closure for quiet use
  • Four-way locking system
  • Transparent flap for visibility
  • Fits medium-sized cats
  • Straightforward installation

What Could Be Improved:

  • Not suitable for very large cats
  • May require additional sealing for exterior use

4. PetSafe Interior 2-Way Locking Cat Door

Simple Two Way Control
PetSafe Interior 2-Way Locking Cat Door
8.9

Petsafe

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Designed for interior doors, this cat flap uses a basic two-way locking system to manage your cat's access between rooms. The translucent plastic flap is durable and minimizes scratching, making it a good choice for separating spaces like bedrooms or litter areas. Installation is quick with the included template and hardware.

What We Like:

  • Easy two-way locking
  • Durable plastic construction
  • Quick installation with template
  • Good for separating indoor spaces

What Could Be Improved:

  • Lacks four-way locking options
  • Not intended for exterior doors

5. CEESC Extra Large Cat Door, 4-Way Locking

Extra Large Pet Access
CEESC Extra Large Cat Door, 4-Way Locking

Constructed from weather-resistant ABS material, this extra-large cat door feels robust and is suitable for larger cats or small dogs. The four-way locking mechanism gives you control over your pet's access, and the transparent flap helps pets see what's on the other side. Added features like a brush strip and rain seal enhance comfort and reduce noise.

What We Like:

  • Extra-large opening for bigger pets
  • Four-way locking for flexibility
  • Weather-resistant construction
  • Brush strip reduces noise
  • Rain seal for outdoor use

What Could Be Improved:

  • May be too large for small cats
  • Requires careful measuring for installation

How to Choose Cat Flaps

Matching the cat flap size and features to your cat and your home setup ensures smooth daily use and security.

Size and Fit

A properly sized flap prevents squeezing and encourages your cat to use it confidently.

Locking Mechanisms

More locking options give you better control over your cat's movements and help keep stray animals out.

Material and Durability

Durable materials and thoughtful seals make the cat flap last longer and keep your home comfortable.

Installation and Compatibility

Check compatibility with your door or window material before buying to avoid installation issues.

Practical Scenarios

Think about your daily routine and your cat's habits to select the most practical cat flap for your needs.

FAQ For Cat Flaps

1. How do I measure my cat for a cat flap?

Measure your cat's width at the shoulders and height from the ground to the belly. Choose a flap with an opening slightly larger than these measurements for comfortable access.

2. Can cat flaps be installed in glass doors or windows?

Some cat flaps are designed for installation in glass doors or windows, but this may require professional help to avoid damaging the glass.

3. What is the difference between two-way and four-way locking?

Two-way locking allows you to set the flap as open or locked, while four-way locking lets you choose between in-only, out-only, fully open, or fully locked modes.

4. Are cat flaps weatherproof?

Many cat flaps designed for exterior doors include weatherproofing features such as seals or rain covers, but always check the product details to ensure suitability for outdoor use.

5. Do cat flaps keep other animals out?

Locking mechanisms can help prevent stray animals from entering, but no cat flap is completely secure against determined wildlife or pets without additional security features.
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Peter Armani

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