6 Best Cat Door Picks of 2024

Posted in: Cat Supplies - Last Updated: January 8, 2024 - Author: Rebekah Carter
Posted in Cat Supplies 
Last Updated: October 1, 2021  
Author:  Rebekah Carter
white and black cat exiting an exterior cat door

A cat door or cat flap is an excellent investment for any homeowner giving their feline friend the freedom to explore the outdoors. The best cat door models  ensure your furry friend can hop in and out of your home whenever they choose, without you having to rush to open the door every few minutes.we

Although cats don’t necessarily have to go outside to be happy, many pet parents prefer to give them this option. Unfortunately, cats can be quite indecisive. If you’ve already got an outdoor feline, you’ll know how frustrating it can be to rush to the door to let your cat out, only to have them scratching to come back in a few minutes later.

So, what do you need to consider if you’re planning on buying your own cat flap or cat door? Microchip cat doors will give your furry friend the freedom they need with added security, while basic flaps are ideal for simplicity.

So, here’s everything you need to know about choosing the best cat door in 2021.

The PetSafe Freedom Flap

Our choice is the PetSafe Freedom Flap, the Best Overall Cat Door for your cat!

PetSafe Freedom Aluminum Pet Door for Dogs, Large, White, Tinted Vinyl Flap

Is a Cat Door a Good Idea?

First, you’ll need to ensure you actually want to invest in a cat flap for your kitty. The biggest thing holding many pet parents back is the risk of allowing their kitty to go outside. Indoor cats are often much safer than their outdoor companions, and they can even live longer too. However, if you have a cat that’s used to going outside, it’s very difficult to train them to stay indoors.

A cat door gives you the freedom to provide your kitty with independence, so you can spend less of your life running around after your cat. Here are some of the pros and cons to consider.

Pros:

  • Gives outdoor cats the freedom to explore
  • Less time spent running back and forth to the door
  • More secure than leaving a door or window open
  • Relatively easy to use in most cases
  • Lockable flaps allow you to control when your cat goes outdoors
  • Could allow your cat to go to the toilet outside

Cons:

  • The outside world can be dangerous for cats
  • You’ll need to teach your cat how to use the cat flap
  • Other animals may get in through the flap

Which Type Of Cat Flap Is Best?

These days, there are various kinds of cat flap or cat doors to choose from if you’re raising an outdoor kitty. You can stick to something simple, like a manual cat flap, if you’re not worried about other animals getting into your home. Alternatively, you might prefer to look into microchip cat door or lockable cat flaps for greater peace of mind.

The types of cat flaps you can consider include:

Manually operated cat flaps

The simplest form of cat flap manually operated flaps simply open when your cat pushes its head against the part which opens. This type of flap will offer access to all kinds of cats – including the ones that don’t belong to you. Be careful to ensure other animals can’t get into your house.

Infrared/ Magnetic cat doors

Another relatively simple product, these cat doors open with a magnet or device placed on your cat’s collar. When your cat’s collar is within reading distance of the flap, the device will usually unlock, allowing your cat to come in and out. This can help to deter other animals from coming into your home, but you may still end up with wayward cats if they have a similar collar.

Microchip cat doors

The most advanced option on the market today is the microchip operated cat flap. This device scans your cat’s microchip to determine who to allow into your home. Many of the leading products allow for multiple cats to be programmed into the system, so you can even use this device if you have a multi-cat household. These microchip cat doors are perfect for preventing other cats from accessing your home.

Whilst we are on the topic of microchips, every cat owner should also ensure that they have their furry partner microchipped just in case he or she gets lost. A microchip will allow them to be identified quickly and easily. 

tabby cat exiting a cat flap outside

What to Look for in the Best Cat Flap

Choosing the best cat flap generally means asking yourself a few basic questions. First, you’ll need to ask yourself whether you’re comfortable with your cat being an outdoor animal and how you’re going to keep the cat safe (with microchips and vaccinations).

When you’re fully committed to getting a cat flap, think about:

  • The size: The right size cat flap will depend on the size of your kitty. Some breeds of cat, like the Maine Coon and Savannah are much larger and need more space to get in and out of a door. If you have a small to mid-sized cat, a standard cat flap should work fine.
  • Function: How do you want your cat flap to work? Are you looking for something that your cat can easily push open without the need for special collars and microchips? Do you want a cat flap that can distinguish your cat from other animals?
  • Materials: The materials used to make your cat door will determine how it looks, how long it lasts, and how durable it is. A good quality plastic designed to withstand UV rays is often a good choice.
  • Installation: It’s also important to ensure you can easily install the cat door of choice into your existing door. Making a mess of the installation process doesn’t just mean you need to buy a new cat flap. You might end up having to replace your entire door.
  • Locking options: If you have a manual cat door, you may need to look for ways to lock it yourself. Alternatively, a microchip cat flap will usually automatically lock when not in use. If you choose a microchip cat flap, ensure you can program more than one cat to go through it if you have multiple felines.
  • Indoor or outdoor?  Cat doors don’t have to lead to the outside world. A good cat flap can also be an excellent way to allow your kitty to get between different rooms of the house, without you having to leave the doors open.
long haired tabby cat exiting a cat flap

Cat Door FAQ

Buying the ultimate cat flap can often seem complicated if you’ve never had one before. It’s difficult to determine which product is going to be the most secure, as well as which options will feel the most comfortable to your cat. If you’re feeling uncertain when searching for your cat flap, here are some of the questions you may need to answer.

Q: Should I lock my cat door overnight?

Cats are complicated creatures. Some like to go out through the day, while others prefer to do most of their hunting and exploring during the night. If you want to allow your cat total freedom to go out whenever they choose, you’ll need to avoid locking the cat flap during the night. Unfortunately, this can also make it difficult to protect your home from other animals. If you’re worried about security, it’s often a good choice to opt for a microchip cat flap which locks automatically.

Q: Where can I install a cat flap or cat door?

Interestingly, you won’t necessarily need to place your cat flap in a door, depending on the kind of product you get. It’s possible to install some cat flaps in windows, and even walls, depending on your needs. If you have specific requirements for the installation, make sure you check the details of the product in advance for information on your options.

Q: How do I know if a cat door is big enough?

Most cats can squish through virtually any size of door or entryway. However, that doesn’t mean you should choose the smallest cat flap. A small cat flap might feel like a better idea when you want to protect against potential security issues. However, you also run the risk of your cat not wanting to use the cat flap. Remember, you need to train them to walk in and out of it first.

Q: How do I install a cat door?

Most cat flaps will come with advice on how to install them within your instruction manual. If you can’t find this information in the product packaging, check online for insights. You may need to cut a portion out of your wall or door to install the cat flap. If you’re concerned about this, make sure you seek the help of a professional.

Q: Do I need more than one cat door?

Not necessarily. Having multiple cat flaps means worrying about more points of entry throughout your home. Most cat flaps will be suitable for multi-cat households. If you have a microchip solution, make sure that you opt for something which you can program for multiple cats.

How Do You Get Your Cat to Use a Cat Flap?

Perhaps the biggest question for cat owners looking to install their own cat flap, is how do you get a feline to use it? Some kitties will automatically take to the cat flap and start using it straight away. Other felines may need more convincing to get started.

Ensure your cat feels comfortable with the flap by giving them plenty of time to check out the product before you fit it. Your cat should have time to sniff at the plastic, and confirm it isn’t a threat. When installing the flap, make sure it’s at a good height, so it’s convenient for your cat to use.

If you’re not sure what the right height would be for your cat, the best option is measure from your cat’s belly to the floor. After installing the cat flap:

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  • Hold the flap open so the cat can see and smell the outdoors for a few moments to begin with. It will take a few moments for your cat to recognize the presence of a new exit from the home.
  • When you’re ready, you can go outside and push your hand through the cat door to offer some treats. Once your cat smells the food, slowly pull your hand backwards to encourage the cat to climb through the cat flap.
  • Adding your cat’s scent to the new cat flap can help them get used to the idea too. All you need to do is take a cloth and wipe it over your cat, then rub it into the cat flap.
  • Don’t ever try to simply force your cat through the flap because you’re feeling overly frustrated. Make sure you’re patient and allow the cat to avoid the cat flap if they prefer.
tabby cat exiting a white cat flap on a blue door

The 6 Best Cat doors for 2021

Now you know everything there is to know about cat flaps, how to use them, and what to look for in the best cat flap, we can begin our search. To help you make the right choice, we’ve chosen a wide range of cat flap options for you to choose from. Let’s get started.

1. PetSafe Freedom Flap (Best Overall Cat Door)

Simple but effective, the PetSafe freedom flap is a convenient solution for allowing your cat to leave and enter the house whenever they choose. The great thing about this product is it comes in a range of sizes. This means that families with larger breeds of cat can still enjoy the benefits of a manual cat flap. Plus, it’s extremely easy to install too. 

All you need to set up the cat flap is a screwdriver and a little time. The weather-resistant and soft cat flap has a magnetic enclosure to ensure that your home stays protected against bad weather and bugs. What’s more, this cat flap is suitable for a wide range of different styles of door too. With quality guaranteed, it’s hard to go wrong with a product like this.

PetSafe Freedom Aluminum Pet Door for Dogs, Large, White, Tinted Vinyl Flap

Pros:

  • Easy to install into a range of doors
  • Various size options to choose from
  • Weatherproof, soft magnetic closing
  • Manual solution requires no tech setup
  • Works for both dogs and cats

Cons:

  • No protection from wayward animals
  • Gets dirty easily

2. PetSafe Cat Door for Interior Door (Best Interior Locking Cat Doors)

Sometimes you don’t just need a cat door to allow your kitty to explore the outdoor world. An interior cat door is excellent if you want to create a cupboard where your kitty can go to the bathroom in their litter tray with absolute privacy. This is a great way to lock away smells too. Interior doors can also help to keep cats out of bedrooms and other spaces when necessary.

This PetSafe cat door is transparent for easier training, so your cat can see you or their treats on the other side of the flap. The installation is quick and simple, so you can fit your flap onto any kind of door. There’s even a sliding lock so you can easily lock off certain rooms and keep your cats out of places where they’re not supposed to be. All that, and you can even choose between a two-way or four-way lock too.

PetSafe Interior Cat Door: 2-Way Locking, Indoor Pet Door Flap - Tinted Privacy Door for Cat Litter Box or Pet Feeder, Built-In Door Lock, Durable Door Frame, DIY Easy Install, Hardware Kit Included, Small, White

Pros:

  • Easy DIY installation
  • Fantastic for training cats to use cat flaps
  • Great for protecting interior environments
  • Lock and unlock with different locking options
  • Works with a wide range of doors

Cons:

  • Not suitable for outdoor use
  • Only available in one size

3. Cat Door Built In Interior Pet Door (Best Interior Cat Door)

If you’re looking for a simple interior cat door option, then the Purrfect portal could be the right choice for you. This adorable door comes in a fun cat shape, so you can keep your home looking gorgeous while giving your cat the freedom to wander around wherever they want to go. You won’t be able to close or lock this door when necessary, however. 

Ideal for creating a separate litter space in your home, this cat door fits in solid and hollow-core doors alike, with a clever design and easy installation. There’s a template included to help you mark where your cat flap is going to go. After that, all you need to do is cut out the right shape and add the portal. A no flap design does mean you won’t have to train your cat either.

Cat Door Built In Interior Pet Door for Small, Medium, & Large Cats - Cat Doors for Interior Doors - Hole Pass Fits Indoor Hollow Core or Solid Inside Doors - Hidden Kitty Litter Box Cat Furniture

Pros:

  • Minimal training required
  • Easy to install throughout the home
  • Great for giving your cat more freedom inside
  • Simple template system provided
  • Durable plastic

Cons:

  • One size only
  • No door for locking purposes

4. SureFlap Microchip (Best Microchip Cat Door)

Few cat flap options deliver the same peace of mind as a microchip door. These solutions are intended to ensure you only allow the right cats into your home. You simply program the device to recognize your cat’s microchip, and the system will scan your kitty every time it approaches to determine when it should be allowed in. You can program up to 32 identities with this flap. 

With a long-lasting battery, a secure design, and durable materials throughout, the Surefeed cat door is one of the most reliable options for homeowners. You can usually expect up to 12 months of battery life from the Surefeed solution, but you’ll also be able to see when the energy levels are running low thanks to a low battery LED light indicator.

SureFlap - Sure Petcare Microchip Cat Flap, White, Scans Pet's ID on Entry, Check Your Cat's Size,Flap Opening is 4 3/4” (H) by 5 5/8” (W)

Pros:

  • Excellent security and peace of mind
  • Works with up to 32 identities
  • Fantastic easy installation
  • Great battery life with low-level indicator
  • Suitable for a range of door types

Cons:

  • Only available in one size
  • Requires programming to work properly

5. Depets Large Cat Door (Best Cat Doors for Large Cats)

As mentioned above, it’s much easier to train your kitty to use a cat door when the product is large enough. A small hole might be enticing for some kitties, but you don’t really want your cat to have to squash through your cat flap every time you want to use it. This larger cat door, suitable for small dogs and larger cats, is a great option for big cat households

The product, which has a circumference of around 23 inches, is easy to install, and comes with all the instructions you need to jump in. The transparent flap is also fantastic for training because your cat will be able to see you through the door. High-quality materials also protect against rain and wind from the outdoors too.

Depets Medium Cat Flap Door with 4 Way Lock (Outer Size 7.5' x 7.8'), Magnetic Pet Door Kit White, Weather-Resistant Cat Door for Cats & Doggy

Pros:

  • Ideal for larger cats and dogs
  • Fantastic easy installation
  • Weather-resistant materials
  • Transparent flap for easy training
  • Multiple locking modes

Cons:

  • Takes up a lot of door space
  • Can get dirty easily

6. PetSafe Electronic SmartDoor (Best Collar Activated Cat Door)

The PetSafe cat flap and pet door is another excellent pick for homeowners keen to put safety and security first. This cat door is ideal for all kinds of dogs and cats, with multiple sizing options available. The Smartdoor works with the smartkey device which you place on your pet’s collar, so only they can get in and out of your home when they choose. 

This product comes designed for easy installation, and you can even put it in a wall instead of a door if you prefer. The battery-operated system can work with up to 5 smart keys at once, depending on how many cats you have in your home.

PetSafe NEVER RUST Electronic Pet Door - Automatic Dog and Cat Door - For Small Pets - Pets Weighing 4 - 15 lb

Pros:

  • Excellent for protecting your home
  • Easy to install in walls and doors
  • Fantastic battery-operated performance
  • Weatherproof and secure design
  • Multiple sizes

Cons:

  • Universal key could allow outside animals into the home
  • Can be easy to lose track of battery life

Final Thoughts on Picking the Best Cat Flap

The right cat flap for you will depend on your feline’s preferences, as well as your own goals. If you’re looking for an indoor cat door option, the lockable Petsafe cat door is an excellent choice.

For an exterior cat door capable of providing peace of mind, we’d recommend the Surefeed microchip solution to work alongside your cat’s collar. You can even use it with multiple cats! 

Just to end on, please make sure that you have your kitty fully covered by pet insurance

Even more so with adventurous outdoor moggies! You never know! 

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About the author

Rebekah Carter is a dedicated animal lover. Her Savannah cat, Roscoe, has a lot of attitude, while her Maine Coon, Dukino, is full of love. When not writing, she’s looking after her cats and researching ways to help them live their best possible life. Her passion for animals and natural skill for writing led her to pursue pet blogging.

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