Top 5 Interior Cat Doors: A Detailed Review Guide

Imagine this: your cat desperately wants to get from the living room to the bedroom, but a closed door stands in the way. You hear the little meows, the pawing at the wood—it’s a constant reminder of their desire for freedom. Sound familiar? Many pet owners face this exact daily dilemma.

Choosing the perfect interior cat door is tougher than it looks. You worry about drafts, security, and making sure the door fits your existing interior walls without looking messy. Will it fit the door panel? Will your cat even use it? These small decisions can lead to big headaches if you pick the wrong one.

This guide cuts through the confusion. We will break down the best types of interior cat doors available today. You will learn exactly what features matter most for your home and your feline friend’s comfort. By the end, you will feel confident choosing a solution that keeps both you and your cat happy.

Top Interior Cat Door Recommendations

SaleBestseller No. 1
Depets Large Cat Door (Outer Size 9.9" x 9.2"), 4 Way Locking Cat Flap Door for Interior Exterior Doors, Weatherproof Pet Door for Circumference < 23"
  • 4 Switching Modes: Depets cat door interior door has four independent models to lock with switches - swing out only, in only, both in and out, and fully locked, easy control of your pet's in and out
  • Applications: Outer size: 9.25" x 9.92" x 2.16"(W x H X D), Inner size: 7.08" x 7.48"(W x H), Cut-Out Size: 7.7" x 8.3" (W x H). This cat door exterior door is for cat lighter than 17.64 lb and waist circumference shorter than 23.62"
  • Easy To Install: Complete instructions included, you can easily install our doggy door in windows, doors, cupboards etc.
  • Thoughtful Design: Transparent flap let pet see through the pet door. Exterior screen is water resistant. Brush strip reduces noise from the door closing
  • Assured Quality: Made of ABS plastic, weather-resistant, the surface of this window cat door is smooth and durable
SaleBestseller No. 2
PetSafe Interior 2-Way Locking Cat Door - Allows Convenient Movement Between Rooms & Minimizes Scratching - Tinted Durable Plastic Privacy Door for Feeder & Litter Box
  • Cat-Only Access Control: The PetSafe Interior 2-Way Locking Cat Door lets you control access to private spaces like litter boxes, pet feeders, or nighttime areas
  • Durable & Pet-Safe Design: Translucent cat flap made from durable plastic minimizes door scratching and keeps dogs, kids, and unwanted intruders safely out
  • Easy DIY Installation: Quick, hassle-free setup with included cutting template, hardware kit, and installation guide fits most interior doors 1.5 - 2" thick
  • Global Mission, Local Care: With U.S. roots and worldwide reach, PetSafe delivers vet- and trainer-recommended solutions and exceptional customer support to create fields of joy for pets
  • 25 Years of Trust: Since 1998, PetSafe has created safe, innovative, and trusted products that bring joy, enhance pet lives, and support the lifelong bond between pets and their families
Bestseller No. 3
Cat Door for Interior and Exterior Doors with 4-Way Locking System - Pet Door for Cats and Small Dogs, Durable Transparent PVC Flap with Noise Reduction Seals-Viywicz
  • 【Fits Interior & Exterior Doors for Cats & Small Dogs】 Cat Door versatile design installs easily on most interior and exterior doors. The ideal size (9.84"x9.25")provides comfortable passage for your cats and small dogs.
  • 【4-Way Locking System for Total Control】 Cat door interior door secure latch offers locked, in-only, out-only, and free-pass settings. Control your pet's access and prevent unwanted entry from other animals for complete peace of mind.
  • 【Clear & Quiet Transparent PVC Flap】 Dog door the transparent flap allows your pet to see through, reducing hesitation. Sealed edges minimize noise and help improve indoor insulation.
  • 【Easy Installation】 Pet door Comes with a clear installation template and guide. No need for a handyman; you can easily install it yourself using common household tools.
  • 【Built to Last with Durable Materials】 Pet gate indoor constructed with a sturdy frame and a tough, easy-clean flap. Engineered for reliable daily use, giving your pet freedom and you convenience.
Bestseller No. 4
Wordcam Large Cat Door Interior Door, XL Indoor Cat Door, Pet Doors for Cats, Kitties and Small Dogs (White)
  • 【EASY INSTALLATION】:Our cat door comes with a full instruction manual and cutting template, allowing you to easily install it on your door with the included screws. Get it up and running in just a few simple steps!
  • 【SAFE AND DURABLE】: Made of tough, wear-resistant ABS material, our cat door interior door features smooth, burr-free edges to protect your cat from scratches. Its sleek design and paintable surfaces ensures it will perfectly match your door and home decor, while standing up to everyday wear and tear.
  • 【BARRIER-FREE DOOR DESIGN】: With our interior cat door, your cat can come and go as it pleases, accessing its food, water, and litter box even when you’re not home. This design also ensures that larger pets–like dogs–won’t be able to get inside, keeping both your cat and your home safe.
  • 【PERFECT SIZE FIT】: With an external size of 12.4"x 10.63"x 2.44" and pass-through opening of 8.46"x 7.87", our cat door inside is perfect for doors with thicknesses of 0.8"-1.78". It’s also great for larger cats, weighing up to 20-25 lbs.
  • 【VERSATILE APPLICATION】: Our indoor cat door is suitable for all types of hollow, solid, and inner doors. It’s perfect for use in laundry rooms, bedrooms, basements, and other areas where your cat can have its own space. With our cat door, your cat will be happier and more comfortable.
Bestseller No. 5
Meow Manor® Cat Door Interior Door - No-Flap, Interior Cat Door for Cats Up to 20 lbs, Easy DIY Setup, Secured Installation in Minutes, No Training Needed…
  • (PATENTED) PRIVACY FOR YOUR KITTY - Meow Manor pet door for cats is a magic portal to your cat's safe haven. With our indoor cat door, your baby can finally have a personal space for their litter box and food while the human door is closed. The best part? It keeps the odor away in the cutest way possible! And the dogs, too.
  • EASY DIY INSTALLATION - Most cat doors on the market are put up with flimsy tape. DIYers can set up this pet door for interior doors in minutes. Our patented indoor cat door comes with easy to follow instructions and sturdy screws for a more secure, foolproof installation. Conveniently fits both solid and hollow core doors with 1.25" - 1.75" thickness.
  • THE ONLY NO FLAP KITTY DOOR IN THE MARKET - Our cat door interior door is built with you and your feline in mind. Unlike cat doors with flaps that can harm your pet, this large cat door for interior door is safe for your baby's paws. No more getting their paws stuck under the flap and kids or dogs getting close to the litter box.
  • NO TRAINING NEEDED - A cat door interior door with a built-in flap requires training to be used and can be bothersome with the annoying flap noise. To put an end to this door trouble, our kitty door for interior door has an option to "close" the opening instead. No training needed. Your cat will get it the same way he did with his litter box! It's THAT easy.
  • FOR BIGGER BREEDS - Make cat doors indoor bigger you said. We heard you! Meow Manor measures at 9.25” high and 9” wide and is designed to be a large cat door to fit pets that weigh up to 20 lbs. If your cat weighs 20 lbs or more, we suggest you check out the Meow Manor XL.
Bestseller No. 6
ikuso Indoor Cat Door, Cat Door for Interior Door, Pet Doors for Cat, Kitties and Kittens
  • ღBARRIER-FREE DOOR DESIGNღ: There is no one in the house. Put the cat food in the house. With the cat door for interior door, there is no need to worry about the entry of the dog. The cat can freely go in and out to play, eat and drink!
Bestseller No. 7
Meow Manor® Cat Door Interior Door - No-Flap, Interior Cat Door for Cats Up to 20 lbs, Easy DIY Setup, Secured Installation in Minutes, No Training Needed…
  • (PATENTED) PRIVACY FOR YOUR KITTY - Meow Manor pet door for cats is a magic portal to your cat's safe haven. With our indoor cat door, your baby can finally have a personal space for their litter box and food while the human door is closed. The best part? It keeps the odor away in the cutest way possible! And the dogs, too.
Bestseller No. 8
The Kitty Pass Interior Cat Door Hidden Litter Box Pet Door for cats up to 21 lbs
  • The Kitty Pass is the safest and cutest way to let your cat in and out, of closed doors.
  • Smooth, Wide opening allows your cat to pass through SAFELY, without tails getting snagged or caught up.
  • No eye offending Screw Holes or logos, just beautiful clean lines that compliments your door perfectly.
  • Pass through opening is 7 1/2" wide and 6 1/2" height and can be used by all cats up to 20 lbs. Easily fits all standard interior doors with sizes, 1 1/4" to 1.75" thick
  • Comes completely finished in a beautiful semi gloss white, or you can easily paint it yourself, to match your homes decor.

The Ultimate Buying Guide: Finding the Perfect Interior Cat Door

Do you have multiple rooms in your house? Do you want your cat to move freely between them? An interior cat door is a great solution! This guide will help you choose the best one for your home and your feline friend.

Key Features to Look For

Not all interior cat doors are the same. Look for these important features:

  • Size and Flap Opening: Measure your cat! The opening must be big enough for your cat to pass through comfortably. A door too small causes stress.
  • Locking Mechanism: Many doors come with a lock. This lets you control when your cat can pass. You might want to keep them out of a certain room sometimes.
  • Sound Level: Some flaps are loud when they swing open. A quiet door is better, especially if your cat is shy or if you have light sleepers in the house.
  • Durability: The door needs to last. Check reviews to see how well the plastic or metal holds up over time.

Important Materials

The material of the door affects how long it lasts and how easy it is to clean.

Plastic Doors:

Most interior doors are made of durable plastic. Plastic is lightweight and usually inexpensive. Look for ABS plastic; it resists scratching better.

Metal Accents:

Some higher-end models use metal frames or magnetic closures. Metal adds strength but can sometimes make the door heavier or noisier.

Flap Material:

The flap itself is often clear vinyl or soft rubber. Soft flaps are easier for cats to push through. Make sure the material does not crack in different temperatures.

Factors That Improve or Reduce Quality

Quality matters for a smooth experience. Here’s what makes a good door:

Quality Boosters:
  • Magnetic Closure: A small magnet at the bottom keeps the flap securely closed. This stops drafts and stops the flap from swinging wildly.
  • Smooth Edges: Check that there are no sharp edges where your cat could scratch itself. Good manufacturing leaves smooth finishes.
  • Easy Installation Kits: Doors that come with clear instructions and all necessary screws are higher quality.
Quality Reducers:
  • Flimsy Flaps: If the flap feels very thin, it might tear quickly.
  • Poor Alignment: If the frame doesn’t fit together squarely, the door might stick when opening.
  • Cheap Hardware: Screws or mounting brackets that strip easily lower the overall quality.

User Experience and Use Cases

Think about where you will install the door and who will use it.

Installation Locations:

Interior doors are usually installed in hollow-core wooden doors or sometimes drywall partitions. Measure the thickness of your door. Some kits are designed only for thin doors.

Cat Comfort:

If you have an older or very large cat, you need a larger opening and a very light flap. A heavy flap makes movement difficult for them.

Use Case: Litter Box Access:

Many people install an interior cat door leading to a laundry room or basement where the litter box is kept. This keeps smells contained while allowing access.

Use Case: Separating Pets:

If you have a dog that harasses the cat, an interior door lets the cat escape to a safe zone (like a home office) when needed.

Choosing the right door improves life for both you and your pet. Measure twice, buy once, and enjoy the freedom!


10 Frequently Asked Questions (FAQ) About Interior Cat Doors

Q: What is the main difference between an interior and exterior cat door?

A: Exterior doors need to be weatherproof and highly secure against outdoor animals. Interior doors focus more on ease of use, quiet operation, and fitting standard indoor door thicknesses.

Q: Do I need tools to install an interior cat door?

A: Yes, usually you need a drill, a jigsaw or keyhole saw to cut the opening, and a screwdriver. Some kits include templates to make cutting easier.

Q: Can I install an interior cat door in a solid wood door?

A: It is much harder. Solid wood requires heavy-duty saws. Most interior cat doors are designed for standard hollow-core interior doors, which are easier to cut.

Q: How do I measure my cat for the right size door?

A: Measure your cat at its widest point (usually across the shoulders or hips). The door opening should be at least one inch taller and one inch wider than that measurement.

Q: Will an interior cat door let in drafts?

A: If the door has a good magnetic closure or weather stripping, drafts are minimal. Doors without a solid seal might allow slight airflow between rooms.

Q: Are interior cat doors safe for kittens?

A: Small kittens might get stuck if the door is too large or if the flap is too heavy for them to push. Supervise young kittens until they learn how to use it.

Q: How do I keep my dog from using the cat door?

A: Use a door with a strong locking mechanism that you can slide shut. You can also buy specialized microchip or RFID doors that only open for your cat’s collar tag.

Q: What if the door doesn’t fit the door thickness?

A: Some doors come with plastic liners or extension tunnels. These pieces bridge the gap between the two sides of the door, ensuring a clean look even on thicker doors.

Q: How long does it take to install one?

A: If you are comfortable using a power saw, installation usually takes about one to two hours, including measuring, cutting, and securing the frame.

Q: Can I paint the frame of the cat door?

A: Yes, most plastic frames can be lightly sanded and painted to match your interior trim color. Check the manufacturer’s instructions first for the best paint type.