Top 5 Cat Door For Interior Doors

Peter Armani | 04-02-2026

Cat doors for interior doors offer a simple solution for giving your feline friend private access to litter boxes, food, or quiet spaces while keeping certain areas off-limits to other pets or children. Whether you want a locking flap, a barrier-free opening, or an easy DIY installation, the right cat door can make your home more comfortable for both you and your cat. Here’s a look at several options designed for different needs and spaces.

Editor's Choice
Depets Large 4-Way Locking Cat Flap
Depets Large 4-Way Locking Cat Flap
Premium Pick
Purrfect Portal Meow Manor XL Interior Cat Door
Purrfect Portal Meow Manor XL Interior Cat Door
Budget Pick
PetSafe Interior 2-Way Locking Cat Door
PetSafe Interior 2-Way Locking Cat Door

Top 5 Cat Door For Interior Doors

We researched and compared the top products in the Cat Door For Interior Doors category to provide you with these recommendations.

1. Depets Large 4-Way Locking Cat Flap

Spacious Four Way Access
Depets Large 4-Way Locking Cat Flap

This cat flap is made from smooth ABS plastic, giving it a sturdy feel that stands up to daily use in busy homes. The large opening is suitable for bigger cats or even small dogs, while the transparent flap allows pets to see what’s on the other side. Its four-way locking system offers flexible control over your cat’s indoor movement.

What We Like:

  • Versatile four-way locking
  • Large opening for big cats
  • See-through flap for comfort
  • Weather-resistant build
  • Brush strip for quieter use

What Could Be Improved:

  • Installation requires careful measuring
  • Not ideal for very thick doors

2. 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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This interior cat door features a basic two-way lock to manage your cat’s access between rooms. The sturdy, translucent plastic flap resists scratches and works well for dividing spaces like bedrooms or litter areas. Installation is straightforward with the included template and hardware.

What We Like:

  • Easy two-way locking
  • Durable plastic construction
  • Fast installation process
  • Useful for dividing indoor spaces

What Could Be Improved:

  • No four-way locking
  • Not suitable for exterior doors

3. Purrfect Portal Meow Manor XL Interior Cat Door

No Flap Easy Access
Purrfect Portal Meow Manor XL Interior Cat Door
9.1

Purrfect Portal

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This barrier-free cat door is crafted from smooth plastic and designed for easy, flap-free passage, making it ideal for cats who dislike traditional flaps. Its XL size accommodates larger breeds and allows pets to reach litter boxes or food in closed rooms. The installation process is DIY-friendly, with secure mounting hardware for both solid and hollow core doors.

What We Like:

  • No-flap design for silent use
  • Large opening for bigger cats
  • Simple DIY installation
  • Keeps dogs out of cat spaces
  • No training required for cats

What Could Be Improved:

  • No locking mechanism
  • Only for interior use

4. ikuso Indoor Cat Door

Barrier Free Passage
ikuso Indoor Cat Door

This cat door offers a simple, open design that allows cats to move freely between rooms without a flap. The smooth plastic feels gentle for everyday use and is especially useful for keeping dogs out of cat-only spaces. It’s a practical choice for letting cats access food or litter areas while doors remain closed.

What We Like:

  • No-flap, easy entry
  • Allows cats private access
  • Helps keep dogs out
  • Minimalist look suits most doors

What Could Be Improved:

  • No lock or control feature
  • Limited to interior doors

5. Wordcam Large Cat Door Interior Door

XL Size Cat Access
Wordcam Large Cat Door Interior Door
8.7

Wordcam

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Built from tough ABS material, this XL cat door features smooth, rounded edges for safety and a paintable frame to match your decor. The barrier-free design lets cats move freely to access food, water, or litter while keeping larger pets out. It’s suitable for most door types and comes with a template and screws for straightforward installation.

What We Like:

  • Large opening for bigger cats
  • Paintable frame for customization
  • Durable, smooth-edged construction
  • Fits solid and hollow doors
  • Simple installation with template

What Could Be Improved:

  • No locking option
  • Only for interior use

How to Choose a Cat Door for Interior Doors

Cat doors for interior doors are most often used to give cats private access to certain rooms while keeping dogs or children out. The best choice depends on your cat’s habits, your home’s layout, and your installation skills.

Locking vs. Barrier-Free Designs

Locking cat doors allow you to limit your cat’s movement as needed, while barrier-free designs are ideal if you want quiet, unrestricted passage.

Size and Fit

A snug fit ensures your cat is comfortable using the door and prevents unwanted pets from squeezing through.

Installation and Materials

Consider your comfort with tools and whether you want a temporary or permanent solution. Most cat doors are designed for hollow or solid core interior doors.

Use Case Scenarios

Think about where your cat needs access and whether you want to restrict other pets or children from those spaces.

FAQ For Cat Door For Interior Doors

1. What size cat door should I get for my interior door?

Measure your cat’s height and width, then choose a door with an opening slightly larger than your cat to ensure easy passage. Consider larger models if you have big cats or multiple pets.

2. Are cat doors for interior doors easy to install?

Most interior cat doors come with templates and hardware for DIY installation. The process usually involves cutting a hole in the door and attaching the frame, but complexity can vary depending on the model and your door’s material.

3. Can I use a cat door to keep dogs or children out of certain rooms?

Yes, many cat doors are designed to be just large enough for cats, helping prevent dogs or small children from accessing areas like litter boxes or feeding stations.

4. Do interior cat doors require training for cats to use?

Most cats adapt quickly to barrier-free or flapless doors, while flap doors may require some encouragement or training, especially if your cat is unfamiliar with the concept.

5. Will installing a cat door damage my interior door?

Installation typically involves cutting a section of the door, which is a permanent modification. However, most cat doors are designed to be neat and unobtrusive, and some can be painted to match your decor.
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Peter Armani

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