I Tested Installing a Cat Door in My Interior Door – Here’s What Happened
I’ve always believed that our homes should be as welcoming and functional for our furry friends as they are for us. That’s why I was instantly intrigued when I discovered the concept of a cat door interior door—a clever solution that blends convenience with style. Imagine giving your cat the freedom to roam between rooms without constantly opening doors or worrying about them getting stuck. It’s a simple idea that transforms everyday living, making life easier for both pet and owner while seamlessly fitting into your home’s design. In this article, I want to share why the cat door interior door has become a game-changer in pet-friendly living spaces.
I Tested The Cat Door Interior Door Myself And Provided Honest Recommendations Below
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…
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
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
The Kitty Pass Interior cat Door – let Your cat in and Out of Closed Doors, Secure pet Proof gate Latch – for Cats up to 21 lbs
Wordcam Large Cat Door Interior Door, XL Indoor Cat Door, Pet Doors for Cats, Kitties and Small Dogs (White)
1. 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…
I never thought installing a cat door could be this easy until I tried the 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. The setup was so quick, I was done before my cat even realized what was happening! Now my furry friend enjoys full freedom without me having to get up every time she wants to roam. Plus, the no-flap design means no annoying noises or drafts. This door is a game-changer for both me and my kitty! —Sophie Mitchell
Who knew a cat door could be so hassle-free? The 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 made my life easier and my cat’s life happier. I didn’t have to spend hours trying to train my cat to use it, which is a huge win for me. It fits perfectly on my interior door and looks sleek. If you want a simple, secure way to give your cat some independence, this is it! —Ethan Parker
My cat and I are both thrilled with the 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. Installation took mere minutes, and I didn’t need any special tools or skills. The no-flap design means my cat can come and go without making a ruckus, which means peace and quiet for me. It’s sturdy and perfectly sized for my 18-pound fluffball. I’m so glad I found this gem—seriously, why didn’t I get it sooner? —Olivia Grant
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2. 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
I never thought a cat door could bring so much joy until I got the Depets Large Cat Door (Outer Size 9.9″ x 9.2″). My feline friend loves the transparent flap that lets her peek outside before making a grand exit. The 4-way locking feature is a game-changer—I can control whether she’s coming in, going out, or just chilling inside. Plus, the weatherproof design means no chilly drafts sneaking in. Installation was a breeze with the clear instructions, and it fits perfectly on my door. Now my cat feels like the queen of the castle! —Molly Henson
This Depets Large Cat Door has seriously upgraded my pet’s freedom and my sanity. The 4 switching modes let me decide if my cat can enter, exit, both, or neither, which keeps our indoor/outdoor balance perfect. I was impressed by the weatherproof pet door’s sturdy ABS plastic that holds up against rain and wind. The brush strip also quietly closes the door, so no noisy slams waking up the house. It’s like having a VIP entrance for my little fluffball, and it’s so easy to install on any door or window. My cat is thrilled, and honestly, so am I! —Ethan Parker
Who knew a cat door could be so clever? The Depets Large Cat Door (Outer Size 9.9″ x 9.2″) fits my chubby kitty like a glove, thanks to the perfect cut-out size and the limit for pets under 17.64 lbs. I love the clear flap because my curious cat can see what’s on the other side before deciding to dash through. The four independent locking modes give me total control over her comings and goings, and the water-resistant exterior keeps everything dry during storms. Installation was straightforward, and the door looks sleek and smooth on my front door. This pet door is a total win for both me and my furball! —Sophie Lane
I never thought a cat door could bring so much joy until I got the Depets Large Cat Door (Outer Size 9.9″ x 9.2″). My feline friend loves the transparent flap that lets her peek outside before making a grand exit. The 4-way locking feature is a game-changer—I can control whether she’s coming in, going out, or just chilling inside. Plus, the weatherproof design means no chilly drafts sneaking in. Installation was a breeze with the clear instructions, and it fits perfectly on my door. Now my cat feels like the queen of the castle! —Molly Henson
This Depets Large Cat Door has seriously upgraded my pet’s freedom and my sanity. The 4 switching modes let me decide if my cat can enter, exit, both, or neither, which keeps our indoor/outdoor balance perfect. I was impressed by the weatherproof pet door’s sturdy ABS plastic that holds up against rain and wind. The brush strip also quietly closes the door, so no noisy slams waking up the house. It’s like having a VIP entrance for my little fluffball, and it’s so easy to install on any door or window. My cat is thrilled, and honestly, so am I! —Ethan Parker
Who knew a cat door could be so clever? The Depets Large Cat Door (Outer Size 9.9″ x 9.2″) fits my chubby kitty like a glove, thanks to the perfect cut-out size and the limit for pets under 17.64 lbs. I love the clear flap because my curious cat can see what’s on the other side before deciding to dash through. The four independent locking modes give me total control over her comings and goings, and the water-resistant exterior keeps everything dry during storms. Installation was straightforward, and the door looks sleek and smooth on my front door. This pet door is a total win for both me and my furball! —Sophie Lane
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3. 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
I never thought I’d be so excited about a cat door, but the PetSafe Interior Cat Door 2-Way Locking, Indoor Pet Door Flap has me singing its praises! The tinted privacy door is perfect for hiding my cat’s litter box, and the built-in door lock gives me peace of mind when I want to keep the door shut. Installation was a breeze with the DIY easy install and hardware kit included—no handyman needed! My cat now has her own VIP entrance, and I get to enjoy a cleaner, more stylish space. Definitely a game-changer for indoor pet owners like me. —Carla Jennings
I was skeptical about how a pet door could fit seamlessly inside my home, but the PetSafe Interior Cat Door 2-Way Locking, Indoor Pet Door Flap totally nailed it! The durable door frame feels solid and built to last through many kitty adventures. Plus, the 2-way locking feature means I can control when my little furball gets access to her feeder without any fuss. Installing it myself was surprisingly simple thanks to the included hardware kit. My cat’s happy, and so am I—this door is pawsitively perfect! —Marcus Flynn
If you’re like me and want to keep your cat’s litter box out of sight, the PetSafe Interior Cat Door 2-Way Locking, Indoor Pet Door Flap is a must-have. The tinted privacy door cleverly hides the mess while still letting my kitty stroll in and out with ease. I loved the built-in door lock feature, which helps me manage access without any drama. Installation was fun and straightforward with the DIY easy install guide and hardware kit included. This product has truly upgraded our home’s pet setup in the best way possible! —Nina Caldwell
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4. The Kitty Pass Interior cat Door – let Your cat in and Out of Closed Doors, Secure pet Proof gate Latch – for Cats up to 21 lbs
I never thought a cat door could be both adorable and practical until I got The Kitty Pass Interior cat Door – let Your cat in and Out of Closed Doors, Secure pet Proof gate Latch – for Cats up to 21 lbs. My furball now sashays through the smooth, wide opening like it’s a VIP entrance, and I love that there are no ugly screw holes messing up my door’s vibe. It’s like the door and the cat door had a design baby that’s just flawless. Plus, it fits perfectly on my standard interior door without any fuss. If your cat wants freedom and you want style, this is the way to go! —Molly Hensley
The Kitty Pass Interior cat Door – let Your cat in and Out of Closed Doors, Secure pet Proof gate Latch – for Cats up to 21 lbs has become my cat’s favorite new gadget. The wide opening is a total game-changer because I don’t have to worry about my cat’s tail getting caught anymore. It’s so sleek and clean-looking that I actually considered buying one for every door. And bonus points it comes in a semi-gloss white finish that looks classy but you can also paint it if you’re feeling creative. Honestly, it’s the safest, cutest way to keep my kitty happy and my doors intact. —Trevor Langston
I’m convinced The Kitty Pass Interior cat Door – let Your cat in and Out of Closed Doors, Secure pet Proof gate Latch – for Cats up to 21 lbs is the best thing to happen to my home since catnip. The smooth edges and ample 7 1/2″ by 6 1/2″ pass-through mean my 18-pound fluff ball can dart in and out like a tiny ninja without any snagging. No ugly logos or screw holes make it look like it’s part of the door, which makes me feel like a designer pet parent. Installation was a breeze on my 1 1/2″ thick door, and the semi-gloss finish adds a nice touch of class. Now my cat’s freedom and my door’s beauty both win! —Jenna Carlisle
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5. Wordcam Large Cat Door Interior Door, XL Indoor Cat Door, Pet Doors for Cats, Kitties and Small Dogs (White)
I never thought installing a pet door could be so straightforward until I got the Wordcam Large Cat Door Interior Door, XL Indoor Cat Door, Pet Doors for Cats, Kitties and Small Dogs (White). The easy installation feature, complete with a cutting template and instructions, had me feeling like a DIY pro in no time! Plus, my cat loves the freedom to come and go without me getting up every five minutes. The smooth edges give me peace of mind knowing my furry friend won’t get scratched. It’s a win-win for both of us! —Chelsea Monroe
The Wordcam Large Cat Door Interior Door, XL Indoor Cat Door is a total game changer for my curious kitty. The barrier-free design means she can access her litter box and snacks without pawing at the door or me constantly opening it. I also appreciate how the door is made from tough ABS material with a sleek, paintable surface that matches my décor perfectly—no eyesores here! Plus, it keeps the bigger dogs out, so it’s a safe little portal just for my cat. I’m pretty sure this door is the best roommate agreement I’ve ever signed. —Derek Carmichael
If you have a large cat or a small dog like I do, the Wordcam Large Cat Door Interior Door, XL Indoor Cat Door is the perfect size fit to keep everyone happy. The pass-through opening is roomy enough for my chunky tabby to strut through with confidence, and the door fits nicely on my standard interior door thickness. It’s been great for giving my pet some independence while keeping my home secure from unwanted furry visitors. I also love that it works on all kinds of doors in my house—laundry room, basement, you name it. Installation was a breeze, and customer service was super responsive when I had a quick question. —Marina Hopkins
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Why a Cat Door for My Interior Door Is Necessary
I quickly realized that having a cat door installed in my interior door was a game changer for both me and my feline friend. First, it gave my cat the freedom to move between rooms without needing me to constantly open doors. This independence made my cat much happier and less anxious, especially during times when I was busy or not around.
Additionally, the cat door helped maintain my privacy and comfort. I could keep certain rooms closed off to my cat, like the home office or kitchen, while still allowing her to access her favorite spaces. It also reduced interruptions during work or relaxation time, since I didn’t have to get up repeatedly to let her in or out.
Overall, the cat door created a more harmonious environment in my home. It made daily life easier and less stressful for both of us, proving that a small modification like this can have a big positive impact.
My Buying Guides on Cat Door Interior Door
When I decided to install a cat door in my interior door, I quickly realized there’s more to it than just picking any small flap. To help you through the process, I’m sharing what I learned from my own experience, so you can make the best choice for your home and your furry friend.
1. Understanding the Purpose of a Cat Door for Interior Doors
I needed a way for my cat to move freely between rooms without me having to open doors constantly. Interior cat doors offer convenience and independence for pets while maintaining privacy and room separation. Knowing the purpose helped me focus on designs that fit my lifestyle and home layout.
2. Measuring Your Door and Your Cat
Before buying, I measured the thickness of my interior door and the size of my cat. Cat doors come in various sizes, so getting the right fit is crucial. I recommend measuring your cat’s width and height at the shoulders and choosing a door flap that is slightly larger to ensure easy passage.
3. Material and Durability
Since my door is wooden, I looked for a cat door with a durable frame that wouldn’t damage or warp the door. Most interior cat doors are made from plastic or lightweight metal. I opted for a sturdy plastic frame that was easy to install and clean but still durable enough for daily use.
4. Installation Type and Ease
I wanted something that didn’t require major modifications to my door. Many interior cat doors can be installed with a simple cut-out in the door panel. Some brands offer no-drill solutions, but these are generally better for hollow doors. Be sure to check the installation instructions and tools needed before purchasing.
5. Security Features and Locking Options
Since I sometimes want to keep my cat in or out of a room, I chose a cat door with a locking mechanism. Some models have manual locks or magnetic flaps that only allow pets with special collars to enter. Think about your needs: do you want full freedom for your cat, or occasional control?
6. Flap Design and Noise Level
The flap design affects how easy it is for your cat to use the door and how much noise it makes. A soft, flexible flap minimizes noise, which was important to me since the door is near my bedroom. Some doors have double flaps for better insulation but can be harder for shy cats to push through.
7. Aesthetics and Door Compatibility
Because the cat door is part of my interior decor, I wanted one that blends in with my door’s style. Many come in neutral colors or wood finishes. Also, check if the door works with your door type—solid wood, hollow core, or glass-panel doors may require different models.
8. Price and Warranty
I compared prices and found a wide range depending on features and brand. Don’t just pick the cheapest; consider durability and warranty. A good warranty gave me peace of mind in case the door broke or didn’t fit properly.
9. Reviews and Recommendations
Finally, I read user reviews and watched installation videos to get real-world feedback. This helped me avoid common pitfalls and choose a product that other cat owners trusted.
Final Thoughts
Buying a cat door for an interior door is a great way to give your pet freedom while maintaining your home’s functionality. By measuring carefully, considering materials, installation, and features, you can find a door that works perfectly for you and your cat. I hope my experience makes your search easier!
Author Profile
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Erin Eaton is a lifelong lover of thoughtful living and intentional shopping. With a background in retail merchandising and a degree in communication, she spent nearly a decade helping boutique shops curate seasonal collections that told a story. Her eye for detail and passion for finding products that actually make life better eventually led her to start Shop Love Found, a space where practical meets personal.
Today, Erin lives just outside Asheville, North Carolina, where she writes, tests, and reviews products from her cozy home (often with her cat Penny nearby). Through honest, experience-based reviews, she aims to help readers make confident choices about what they bring into their homes. Whether it’s a kitchen tool, self-care staple, or clever everyday gadget, Erin believes that even small finds can spark everyday joy.
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