Do you ever feel like a doorman for your own cat? You are relaxing on the couch when your cat scratches at the bedroom door, demanding to come in. Five minutes later, they want to go back out. This constant cycle of opening and closing doors can be frustrating for any pet owner who just wants a little peace and quiet.
Installing a cat door for your interior doors is the perfect solution to this daily annoyance. However, picking the right one is not always simple. You might worry about damaging your home’s aesthetic, choosing the wrong size for your pet, or dealing with a complicated installation process. With so many styles, materials, and locking mechanisms on the market, it is easy to feel overwhelmed by the choices.
In this guide, we take the stress out of the selection process. We will walk you through the most important features to look for, from sleek modern designs to budget-friendly DIY options. You will learn how to measure your door correctly, choose the safest material for your pet, and install your new cat door like a professional. By the end of this post, you will have all the information you need to give your cat the freedom they crave while keeping your home running smoothly. Let’s dive in and find the perfect fit for your home.
Top Cat Door For Interior Door Recommendations
- 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
- INTERIOR CAT DOOR: Give your cat private access to the litter box or food through any interior door, while keeping the dog and kids out
- 2 LOCK OPTIONS: Customize your cat’s access with 2 locking options; locked and unlocked
- DESIGNED FOR YOUR CAT: The high-impact, white plastic frame with a transparent, hard flap is designed for your cat’s preference and makes it easy to use
- EASY INSTALL: Fits interior doors that are ½ in to 2 in thick; detailed instructions, cutting template and hardware included
- CAT SIZE: Flap opening is 5 ¾ in x 5 ¾ in and is designed for cats up to 15 pounds
- 4-Way Locking Control: Easily slide the switches to choose between In Only, Out Only, Both Directions, or Fully Locked modes, giving you complete control over pet safety and daily movement
- Secure Fit: With an exterior frame measuring 9.8" × 9.3" × 2.1" (W × H × D) and a clear passage of 7.1" x 6.7", this door offers ample clearance for medium-sized cats and small dogs to pass through comfortably and confidently
- Quiet & Weather-Resistant: Features a transparent flap, soft brush seals, and a water-resistant exterior to reduce noise, block drafts, and keep out insects and moisture
- Quick & Simple Installation: Comes with a detailed guide, template, and all necessary hardware for an easy setup in minutes on doors, windows, cupboards, or sliding glass panels
- Durable & Pet-Safe Construction: Built from reinforced, quality ABS plastic with a scratch-resistant finish, holding up to daily use in any season, providing safe, reliable access for your pets — indoors or out
- 【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.
- Lets Cats In and Keeps Dogs Out - The Door Buddy Cat Door Prop is the easy, convenient, and secure way to keep door cracked open for cat to go in while also keeping it narrow enough to keep dog out of room (if slightly larger than cat).
- Effortless to Use - Simply turn the knob or handle from either side to open the door and enter the room. It can't get any easier than that. Nothing to manually latch and unlatch every time you enter the room. Relatching in the propped position is even easier... just push or pull the door closed until the Door Buddy Door Latch Holder automatically latches onto the door plunger. That is it!
- Simple Installation, Non-Permanent & Portable - Remove the existing strike plate from the door jam and replace it with the Door Buddy strike plate using existing screws. The Door Buddy Door Holder for Cats does not require any adhesives, cutting, or making new holes in your door, making it removable, reusable, and the perfect solution for renters and travelers alike. The result - a dog proof cat litter box in seconds.
- Adjustable Width - Our patented strike plate and door latch holder allow you to adjust the width of the door opening to keep the door ajar between 3 - 5.5 inches so you can customize it to the exact sizes of your pets. Simply loosen the little screws, slide the two pieces to the desired width, and fully tighten the screws until it locks and no longer slides. T8 Torx tool is provided in the product package.
- Strong, Durable & Pinch Free - Made from thick, high-quality materials making it strong and durable so it will stand up even to big and determined dogs. Finally, a pet, dog, cat door stopper where there is no "movement" when in the propped position which means no pinched fingers, tails, and no getting locked in or out of rooms.
- 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!
- ღSAFE AND DURABLEღ: The indoor cat door is made of ABS material, which is wear-resistant and durable.The edges are smooth and burr-free to protect the cat from being scratched.Smooth line design, paintable materials, perfectly matching your door and decoration
- ღCompact & Roomy Design: This tunnel features a compact 9.05 in. height and a generous 10.55 in. length, providing ample exploration space. The 6.89 in. internal passage allows for comfortable movement, and it stands steadily on a 2.45 in. wide base.
- ღAPPLICABLE SCENEღ: The indoor cat door suitable for all hollow doors & solid doors & inner doors,Perfect for laundry rooms, bedrooms, basements, etc.she‘ll have its own activity space , and your home will smell fresh
- ღNO FALLING OFFღ:The indoor cat door is installed with screws, avoid falling off and gaps caused by tape installation, no noise and no trouble caused by door locks and door damage
- ღSAFE AND DURABLEღ: The indoor cat door is made of ABS material, which is wear-resistant and durable.The edges are smooth and burr-free to protect the cat from being scratched.Smooth line design, paintable materials, perfectly matching your door and decoration.
- ღAPPLICABLE SCENEღ: The indoor cat door suitable for all hollow doors & solid doors & inner doors,Perfect for laundry rooms, bedrooms, basements, etc.she‘ll have its own activity space , and your home will smell fresh.
- 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!
- ღNO FALLING OFFღ:The indoor cat door is installed with screws, avoid falling off and gaps caused by tape installation, no noise and no trouble caused by door locks and door damage
- ღFRIENDLY AFTER-SALE SERVICEღ: Please feel free to contact us if you need any help from us or any inquiries about the cat door, we will give you a satisfactory solution within 24 hours.
- 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: Choosing an Interior Cat Door
Installing an interior cat door gives your pet freedom. It allows your cat to reach their litter box or food while keeping the door closed. This guide helps you pick the right door for your home and your cat.
Key Features to Look For
First, consider the size of your cat. You need a door that is wide and tall enough for your cat to walk through comfortably. Next, look for a locking mechanism. A locking door lets you restrict access to certain rooms when needed. You should also check for a silent flap. A loud “clack” every time your cat passes through can be annoying.
Important Materials
Most cat doors use high-quality plastic or sturdy polycarbonate. Plastic is lightweight and easy to clean. Polycarbonate is stronger and resists scratches better. Some doors include a brush lining around the opening. This lining helps keep the movement quiet and prevents drafts. Always ensure the material is non-toxic and pet-safe.
Factors that Improve or Reduce Quality
A high-quality door is easy to install. It should come with a clear template for cutting your door. A lower-quality door might have a flimsy hinge that breaks quickly. Look for doors with reinforced frames. These frames hold up better against wear and tear. You should also check if the door is paintable. This allows the cat door to match your home decor perfectly.
User Experience and Use Cases
Many owners install cat doors to keep dogs away from the litter box. This is a common use case. Others use them to keep a “cat-only” zone for quiet sleeping. Most cats learn to use the door in just a few days. You can use treats to teach your cat how to push the flap. Once they understand the movement, they will enjoy the extra independence.
Frequently Asked Questions
Q: Will an interior cat door damage my door?
A: Yes, you must cut a hole in your door to install it. This is a permanent change to the door.
Q: Can I install this on a hollow-core door?
A: Yes, most cat doors work well on hollow-core doors. You may need to add a small frame inside the hole for extra stability.
Q: How do I measure my cat for the door?
A: Measure your cat’s width at the widest point and their height from the floor to the top of their shoulders. Add two inches to these measurements for comfort.
Q: Are these doors easy to clean?
A: Most doors feature a simple snap-in design. You can wipe them down with a damp cloth or mild soap.
Q: Do I need special tools for installation?
A: You will need a jigsaw, a drill, a pencil, and a measuring tape. Most kits provide the screws you need.
Q: Will the door flap scare my cat?
A: Some cats feel nervous at first. Prop the door open with tape for a few days so they get used to the opening.
Q: Can I lock the door if I need to?
A: Many models include a slide-in panel or a rotating lock. Check the product description to confirm your model has this feature.
Q: Is the door noisy?
A: Look for models with a magnetic closure or brush lining. These features significantly reduce the noise of the flap hitting the frame.
Q: Can the cat door be painted?
A: Many plastic doors accept paint well. Use a primer first to ensure the paint sticks to the surface.
Q: What if my cat refuses to use the door?
A: Be patient. Use treats or catnip on the other side of the door to encourage them to walk through it.