10 Best Cat Door For Exterior Door

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When it comes to finding the best cat door for an exterior door, the task can be more challenging than expected. With so many options available on the market, it can be overwhelming to determine which one will best suit your needs. From considering the size of your cat to the security features you desire, there are various factors to take into account.

To make your search easier, we have compiled a list of the 10 best cat doors for exterior doors. Our list is carefully curated after thorough research and consideration of key features such as durability, security, ease of installation, and overall customer satisfaction. By shortlisting these products, we aim to save you time and hassle, allowing you to make an informed decision quickly and efficiently.

Whether you are looking for a simple flap door or a more advanced electronic cat door, our list has something for everyone. Say goodbye to the stress of finding the perfect cat door for your exterior door – let our curated selection guide you towards the best option for you and your feline friend.

Top 10 Cat Door For Exterior Door In The Market

Cat Door For Exterior Door Reviews

Bestseller No. 1
Depets Large Cat Door (Outer Size 9.9" x 9.2"), 4 Way Locking Cat Flap Door for...
  • 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
Bestseller No. 2
CEESC Extra Large Cat Door (Outer Size 11"x9.8"), Weatherproof, White, ABS...
  • 4 WAY SWITCH MODE --- The pet door could be adjusted by the Red and Green switches with tabs to 4 modes: out only, in only, both in and out, and fully locked, easy control of your pet's in and out
  • SIZE & APPLICATION --- Outer Size: 9.8" x 11" x 2.15"(W x H x D), Inner size: 7.9" x 8.7"(W x H), Cut-Out Size: 8.3" x 9.5" (W x H); fits doors and thin walls, for cats and doggie under 27.54 lbs and with a waist smaller than 24.8 inches
  • SAFE & THOUGHTFUL --- The transparent flap let pet see through the door. Exterior rain seal is for waterproof. Brush strip eliminates noise from the door closing
  • EASY TO INSTALL --- Complete instructions included, make you easily install in windows, doors, cupboards, panels and walls etc
  • EXCELLENT QUALITY --- Made of ABS material, weather-resistant, the surface is smooth and durable
Bestseller No. 3
PetSafe Never Rust Plastic Doggie Door for Install in Interior and Exterior...
  • PET FREEDOM: Doors are no longer a barrier for your pet with the PetSafe Plastic Dog and Cat Door. The small door is ideal for cats and small dogs, this innovative pet door grants your pets the freedom to roam freely.
  • SMALL: Doggie doors are a must-have for pet owners, and this small pet door is no exception. Designed as one of the best doggie doors for small dogs, it helps ensure your pet can pass through comfortably. Flap opening measures 5 1/8" W X 8 1/4" H
  • SECURITY: Regulate your pet's access with the snap-on closing panel feature. The snap-on closing panel helps deter stray animals from entering your home, upholding your home's security while still offering your pet the freedom they desire.
  • CUSTOMIZABLE: Personalize your pet door to match your home décor with the paintable plastic frame. This dog and cat door feature integrates seamlessly with your existing door color, demonstrating that practicality and aesthetics can coexist.
  • DIY INSTALLATION: This doggie door is not just about convenience, but also about simplicity. Suitable for all doors between 1/16" and 2" thick, it offers a DIY installation process that saves you the cost and hassle of hiring a professional.
Bestseller No. 4
goTeamghjkl Cat Door Flap (Outer Size 7.5" x 7.8"), 4 Way Locking Medium Cat...
  • 4 Way Locking Mode --- The pet door could be adjusted by the Red and Green switches with tabs to 4 modes: out only, in only, both in and out, and fully locked, easy control of your pet's in and out.
  • Size & Application --- Outer size 7.5" x 7.8" x 2"(W x H X D), inner size:6.1" x 6.3"(W x H), cut-out size: 6.3" x 6.7" (W x H), suitable for installation on doors and thin walls, suitable for cat lighter than 16 lb and waist circumference shorter than 15.75" improved weather.
  • High Quality --- Made of ABS material, weather-resistant, the surface is smooth. It provides a fixed groove with snap tabs for weather-proof brush strip, firmly fix the brush strip. Even if the brush strip comes off, easy to put it back into the fixed groove. This greatly help the brush strip reduce noise, stop rain drop, wind or pest like mosquito to the most.
  • Easy to Install --- Step by step installation instruction in the instruction manual included in sales box and installation presentation video for you reference, take care of notice and prepare necessary tools, easy to install as your need. The tunnel depth could be cut down according to your installation need.
  • Applicable scene --- It fits to being installed to interior doors, exterior doors, walls, windows, cupboards, glass, etc.
Bestseller No. 5
PetSafe Extreme Weather Small Dog and Cat Door for Exterior Door - Energy...
  • MAXIMUM ENERGY EFFICIENCY: Unique three flap system is more energy efficient than traditional single flap doors
  • ADDITIONAL INSULATION: Great for hot and cold climates ranging from -10 to 100 degrees F, the center insulated flap helps keep extreme warm and cool air outside of your home
  • CONTROL YOUR PET’S ACCESS: A snap on closing panel keeps your pet from using the door; use a second closing panel (sold separately) for an additional layer of weather protection
  • MATCH YOUR HOME’S DESIGN: The paintable plastic frame allows you to match your door’s existing color
  • DO-IT-YOURSELF INSTALLATION: Easily fits into standard-size paneled, wood, metal and PVC doors 1 5/8 in - 2 1/4 in thick
Bestseller No. 6
Premier Pet Locking Cat Door - 4-Way Lock, For Pets Up to 25 lb., Energy...
  • VERSATILE INSTALLATION: Plastic frame installs in paneled, wood, storm, PVC, and metal doors, as well as interior and exterior walls.
  • FITS INTERIOR AND EXTERIOR DOORS: Fits doors 1/16 inch to 2 inches thick.
  • ENERGY EFFICIENCY: Clear, hard flap with weather stripping to keep hot and cold air out no matter the season.
  • MULTIPLE LOCKING OPTIONS: In only, out only, opened, and locked settings to customize for your needs
  • BEST FOR CATS: Best for cats weighing less than 25 pounds. Flap opening measures 7 1/8 inches by 7 1/4 inches.
Bestseller No. 7
Wordcam X-Large Cat Door, Cat Door for Interior Exterior Doors, 4 Way Locking...
  • [Freedom&Safety]: This cat door interior door provides access for your cat to their own space, allowing entrance to food, water or the litter box, even thought the human door is closed.
  • [ 4-way Locking mechanism ]: The 4-way lockable cat door features both in and outt, only in, only out, and fully locked modes,easily control with rotate knob to keep your pets go in or out.
  • [Application]: The cat door is good for interior and exterior use.Outer Size:10.03" x 2.36" x 11.81"(D x W x H), Inner size:7.87" x 8.66"(D x H), designed for cats up to 25 lb ,easily fits any interior wood, PVC, metal doors 1/2 - 2 in thick.
  • [Easy to Setup]: The pet door for cats come with a full size cutting template to make installation a breeze, can be installed in cupboards, garage, laundry room,closet,utility room,bedroom, bathroom and litter box cabinet doors.
  • [Sturdy & Weather-resistance]: Frame Made of strong ABS plastic, Flap Made of high-strength Acrylic, the frame and flap of kitty door are solidly built, ensures security operation. The cat flaps door are fully brush sealed with magnetic closures for total weatherproofing and minimum energy loss from the house, reduce noise, keeping away bugs and the smell of cat litter.
Bestseller No. 8
Cat Door, Safety Pet Door with 4 Way Lock, Weatherproof & Easy Installation Cat...
  • Freedom & Convenience - Through the great cat door, your cats or small dogs can go in and out easily and quietly. They won’t feel trapped and you no longer bother to open or close the door for them.
  • Safer with 4 Lock Modes - By slide the switches, you can adjust the access mode to Free In & Out, Fully Locked, Out Only, In Only, control your pet’s access and keep away stray animals.
  • Durable & Comfortable - Made of sturdy ABS plastic, the cat door interior door is ready to serve your pets for long time. With sealing well strip, magnet for aligning, it can keep away bugs and the smell of cat litter, reduce the loss of cold air in summer and the loss of heat in winter.
  • Medium Size & Versatile - With 7.48 x 7.87in outer size, 5.9in x 6.1in flap,this pet door is for cats and small dogs with waist circumstance shorter than 15.75in. Perfect for interior and exterior doors of wood, PVC, metal, paneled, glass etc. It also can be installed in windows, wall, cat litter box etc.
  • Easy to Install - The cat door for exterior door comes with detailed instructions, 8 screws and their caps, double-sided tapes. After the necessary tools are ready, you can DIY easily. In addition, the tunnel depth can be cut on demand.
Bestseller No. 9
CEESC Medium Cat Door for Interior/Exterior Door, Weatherproof, Black, Rotary 4...
  • ☞CONVENIENT LOCK --- The knob-style switch is 4 way rotary, you can easily rotate it to 4 modes with the arrow and icons to control your cat's access options: in only, out only, in and out freely, totally locked.
  • ☞IMPROVED WEATHER-PROOF BRUSH STRIP --- It provides a fixed groove with snap tabs for weather-proof brush strip, firmly fix the brush strip. Even if the brush strip comes off, easy to put it back into the fixed groove. This greatly help the brush strip reduce noise, stop rain drop, wind or pest like mosquito to the most.
  • ☞THOUGHTFUL SCREWS --- It comes with 2 packs of 8 screws each, one is packed with short screws, the other long. Please screw in with them from both sides to prevent crack out of incaution, don't just from one side. You could make 8 screws for the 4 screw holes with long + long, long + short, or short + short group according to the depth of door / wall being installed.
  • ☞EASY TO INSTALL --- Step by step installation instruction in the instruction manual included in sales box and installation presentation video for you reference, take care of notice and prepare necessary tools, easy to install as your need. The tunnel depth could be cut down according to your installation need.
  • ☞MEDIUM SIZE --- Outer size: 7.56" x 8.46" x 2.17"(W x H x D), Inner size: 6.18" x 6.30" (W x H) , Cut-Out Size: 6.3" x 6.5" (W x H). it's suitable for cat with waist circumference shorter than 15". It fits to being installed to interior doors, exterior doors, walls, windows, cupboards, glass, etc.
Bestseller No. 10
[ALUMANI] Cat Door for Interior Door and Exterior Door, 4 Way Locking Cat Door...
  • INGENIOUS DESIGN: We use a collar activated cat door technology.When a cat needs to come in from the outside,it can use collar we provide to touch the outer frame at the bottom of the cat door.The door would unlock to let it in. Animals not wearing our magnetic collars will not be able to enter the outer door.However, it is possible to go out through the inner door without the collar.
  • CONVENIENT PET DOOR: ALUMANI cat door has four switching models:only in,only out,open and lock(either way, entry the room requires our collar).The flap has a magnet that will automatically returns the door to its original position when the pet passes through.The pet door conveniently fits doors with 1/5" - 1 3/4" thickness.
  • BUILT TO LAST: This magnetic cat door is made of ABS material for durability. The surface is burr free with smooth edges and smooth lines that are easy to wipe down. It can be painted to match the door or decor perfectly. And it is resistant to claws and bites.It is also insulating and weatherproof.
  • SIZE: The frame size:9 1/4 x 11 1/2 inches(W x H) ;the flap opening size: 6 7/8 x 7 1/8 inches(W x H);the cut-out size:6 7/8 x 7 5/8 inches(W x H).It is suitable for a pet (at least 4 months old) up to 22 pounds, and it is large enough for normal sized adult cats to pass through smoothly.
  • EASY TO INSTALL: This cat door for interior and exterior door can be easily installed in doors made of wood,metal,glass and many other materials.Which include a cutting template and a step-by-step instruction manual that will walk you through the installation easily.

The Bottom Line

In conclusion, the 10 best cat doors for exterior doors were carefully selected based on their features, durability, customer reviews, and overall quality. By following our list, users can easily find a cat door that suits their needs and provides their feline friends with easy access to the outdoors. Whether you’re looking for a high-tech electronic cat door or a simple yet effective manual cat door, our list has something for everyone. Investing in a cat door from our selection can greatly improve your cat’s quality of life and give them the freedom to explore the outdoors safely.