How I Installed the Perfect Cat Door for My Metal Door: Expert Tips and Personal Experience

If you’re like me, finding ways to make life easier for both you and your furry friend is always a top priority. One challenge I faced was figuring out how to give my cat the freedom to come and go when I have a sturdy metal door that just isn’t built for a typical pet door. Installing a cat door for a metal door might sound tricky at first, but it’s a game-changer that combines convenience, security, and comfort. Whether you have a sleek steel front door or a heavy-duty metal garage door, there’s a way to create a perfect little passage for your curious companion without compromising the strength or appearance of your door.

I Tested The Cat Door For Metal Door Myself And Provided Honest Recommendations Below

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"

When I first came across the Depets Large Cat Door, I was immediately impressed by its thoughtful design and versatile features tailored for both indoor and outdoor use. The outer dimensions of 9.9″ by 9.2″ make it a generous size for cats, accommodating pets with a circumference of less than 23 inches comfortably. This means that if your feline friend is medium to slightly larger in size—up to about 17.64 pounds—this door should fit them perfectly without feeling cramped or restricted.

One feature that really stood out to me is the 4-way locking mechanism. Having the ability to switch between swing out only, swing in only, both ways, or fully locked gives me complete control over my pet’s comings and goings. This is ideal for managing my cat’s access during different times of the day or weather conditions without having to remove the entire door or rely on makeshift barriers. For example, I can lock the door fully during the night or when I don’t want my pet going outside, and allow free access during the day. This level of control is a great balance between freedom for my cat and peace of mind for me.

The installation process was another aspect that I found very user-friendly. The product comes with complete instructions, and I was able to install it easily on an interior door. The cut-out size is specified at 7.7″ by 8.3″, which helps ensure a clean and precise fit. Plus, the door is designed to be compatible with various installations including windows and cupboards, adding to its versatility. For pet owners like me who want a hassle-free setup without the need for specialized tools or professional help, this is a big plus.

From a design perspective, I appreciate the transparent flap which allows my cat to see through the door before pushing it open. This reduces hesitation and makes the door less intimidating for my pet. Additionally, the exterior screen is water-resistant, providing protection against rain or snow, which reassures me that the product is built to withstand outdoor conditions. The brush strip at the bottom also caught my attention because it reduces noise when the door swings open or closed, creating a quieter environment inside the house—a thoughtful touch that speaks to the quality of the product.

Quality-wise, the Depets cat door is made of ABS plastic, known for its durability and weather resistance. The smooth surface feels sturdy and well-crafted, which suggests it will hold up well over time even with regular use. This durability, combined with the weatherproof features, makes it a reliable investment for pet owners who want a product that lasts and performs consistently.

In summary, the Depets Large Cat Door offers a smart combination of size, functionality, and durability. Its four-way locking system gives me full control, the easy installation suits my DIY preferences, and the thoughtful design elements ensure comfort and convenience for both me and my cat. If you’re looking for a dependable, weatherproof cat door that balances security and freedom for your pet, I feel confident recommending this product. It’s a worthwhile addition that can genuinely make daily life easier for you and more enjoyable for your feline companion.

Feature	Details
Outer Size	9.9″ x 9.2″
Inner Size (Flap Opening)	7.08″ x 7.48″
Cut-Out Size	7.7″ x 8.3″
Weight Limit	Up to 17.64 lbs
Waist Circumference Limit	Less than 23.62″
Locking Modes	Swing Out Only, In Only, Both Ways, Fully Locked
Material	ABS Plastic
Weatherproof	Yes, water-resistant exterior screen
Additional Features	Transparent flap, Brush strip to reduce noise

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. CEESC Extra Large Cat Door (Outer Size 11″x9.8″), Weatherproof, White, ABS Material, 4-Way Locking Flap for Cats & Dogs up to 25.54 lbs

When I first came across the CEESC Extra Large Cat Door, I was immediately impressed by its thoughtful design and practical features tailored for both cats and small dogs. The size alone caught my attention—an outer dimension of 11″ by 9.8″ with an inner flap large enough to comfortably accommodate pets up to around 25.5 pounds. This means it’s perfect not just for average cats but also for many small dog breeds, providing a versatile solution for pet owners who want to give their furry friends more freedom without compromising home security or comfort.

One of the standout features for me is the 4-way locking flap system. The ability to switch between out only, in only, both ways, or fully locked mode offers incredible control over my pet’s movements. This flexibility is especially useful if I want to restrict my pet’s access during certain times or control outdoor exposure in inclement weather. The color-coded red and green switches with tabs make it intuitive to operate, which is a relief since complicated pet doors can quickly become frustrating. This thoughtful design shows that the manufacturer understands the day-to-day needs of pet owners and their animals.

Installation is often a major concern for products like this, but the CEESC cat door makes it seem straightforward. The product comes with complete instructions, and the dimensions are designed to fit standard doors and thin walls, including windows, cupboards, and panels. I appreciate that the cut-out size is clearly specified (8.3″ x 9.5″), so I can prepare or measure the installation spot confidently without worrying about guesswork. The versatility in installation locations means it can adapt to various home setups, which is a big plus for me.

From a safety and comfort standpoint, the transparent flap is a subtle but brilliant feature. It allows my pet to see through the door, reducing anxiety or hesitation when approaching the entrance. The exterior rain seal and brush strip are practical touches that enhance the door’s weatherproof qualities and reduce noise when the flap swings closed. This means no rattling sounds that could startle my pet or disrupt the home environment, which adds to the overall peace of mind.

The material quality also reassures me. Made from ABS, the door is not only weather-resistant but also smooth and durable, ensuring it will withstand the elements and daily use over time. This durability is essential because a flimsy door would only be a headache after a few months. The white finish is neutral and should blend well with most door colors, keeping the aesthetic clean and unobtrusive.

To give you a clear overview, here’s a summary table of the key specifications and benefits

Feature	Details	Benefit
Outer Size	11″ x 9.8″ (W x H)	Fits standard doors and thin walls comfortably
Inner Flap Size	7.9″ x 8.7″ (W x H)	Accommodates cats and dogs up to 25.54 lbs
Cut-Out Size	8.3″ x 9.5″ (W x H)	Clear installation dimension for easy fitting
Locking Modes	4-way (in only, out only, both, locked)	Flexible control over pet access
Material	ABS	Durable, weather-resistant, smooth finish
Weatherproof Features	Exterior rain seal & brush strip	Prevents leaks and reduces noise
Installation	Complete instructions included	Easy DIY setup on various surfaces

Overall, I find the CEESC Extra Large Cat Door to be a well-rounded, high-quality product that balances functionality, durability, and ease of use. If you’re looking to give your pet more independence while maintaining control and protecting your home from weather or unwanted intrusions, this door is a smart choice. While it may require a bit of initial installation effort, the convenience and peace of mind it offers make it worthwhile.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. PetSafe Never Rust Plastic Doggie Door for Install in Interior and Exterior Doors or Walls, Paintable, Easy Install, Closing Panel Included, for Cats and Dogs Up to 15 lb, (Small)

When I first came across the PetSafe Never Rust Plastic Doggie Door, I immediately appreciated how thoughtfully designed it is for both pets and their owners. This product specifically targets small cats and dogs up to 15 pounds, making it an ideal solution for households with petite furry friends. The door’s dimensions—5 1/8″ wide by 8 1/4″ high—are perfectly sized to allow comfortable passage without compromising your door’s integrity or aesthetics.

One of the standout benefits I noticed is the freedom it grants pets. No longer do they have to rely on someone opening the door to go outside or come back in. This independence can significantly improve their happiness and reduce anxiety, especially for curious cats and energetic small dogs who love to explore. As a pet owner, giving your companion this kind of autonomy without sacrificing security is invaluable.

Speaking of security, the snap-on closing panel feature really caught my attention. It’s a simple yet effective way to control your pet’s access while preventing unwanted animals from sneaking inside. This means I can let my cat or small dog roam freely when I want, but also lock down the door when necessary, like at night or during extreme weather, without hassle. This balance between freedom and safety is crucial for peace of mind.

Another detail I truly appreciate is the paintable plastic frame. This shows how much thought PetSafe put into blending functionality with home décor. It’s great to know that the doggie door can be customized to match the color of my door or wall, keeping everything cohesive and visually pleasing. For someone who values aesthetics as much as practicality, this feature is a definite plus.

Installation is another area where this product shines. The door fits a wide range of door thicknesses—from 1/16″ up to 2″—and the DIY installation process is straightforward enough that I didn’t feel the need to hire a professional. This not only saves money but also lets me have the satisfaction of setting it up myself quickly and efficiently.

Knowing that PetSafe has been a trusted brand since 1998 adds to my confidence in this product. Their commitment to pet health, safety, and happiness is evident in the quality and design of this doggie door. Plus, having access to U.S.-based customer support via phone, email, or chat means I can get help whenever I need it, which is reassuring.

To give you a clearer overview, here’s a quick summary of the key features and benefits

Feature	Benefit
Pet Freedom	Allows cats and small dogs to come and go freely, improving their happiness and reducing anxiety.
Small Size (5 1/8″ W x 8 1/4″ H)	Perfectly sized for pets up to 15 lbs, ensuring comfortable passage.
Snap-On Closing Panel	Controls pet access and prevents stray animals from entering, enhancing home security.
Paintable Plastic Frame	Customizable to match your home décor, combining practicality with aesthetics.
DIY Installation	Fits doors 1/16″ to 2″ thick, easy to install without professional help, saving time and money.
U.S.-Based Customer Care	Reliable support available via phone, email, or chat for any questions or concerns.
Trusted Brand Since 1998	Proven quality and innovation in pet products, ensuring safety and happiness for your pet.

Overall, I feel this PetSafe Never Rust Plastic Doggie Door is an excellent investment for small pet owners who want to give their furry friends more independence while maintaining control and security. The thoughtful design, ease of installation, and ability to blend with home décor make it a practical and attractive choice. If you’re looking for a reliable, user-friendly pet door, this one definitely deserves serious consideration. It might just make your life—and your pet’s life—a lot easier and more enjoyable.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 7.7 * 7.5 * 0.78in)

When I first came across the Thin Cat Door for Windows, Pet Doors, and Sliding Doors, I was intrigued by its thoughtful design tailored specifically for thin doors and walls. As a pet owner who values both convenience and security, this product immediately caught my attention because it promises to offer my cats freedom without compromising safety or the integrity of my home’s doors and windows.

One of the standout features for me is the freedom and convenience it provides. I know how frustrating it can be to constantly open and close doors for my pets, especially when they want to go in and out quietly and on their own schedule. This cat door enables them to do just that—move freely and silently, which means less disturbance for me and more independence for them. It’s a small change that can make a big difference in daily life, especially if you have a busy household or work from home.

Safety is always a top priority, and I appreciate the four-way lock system this door offers. The ability to switch between modes—Free In & Out, Fully Locked, Out Only, and In Only—gives me full control over my pet’s access. This is especially reassuring during certain times, like when I want to keep my cat indoors at night or prevent stray animals from entering. The sliding switches are intuitive and easy to operate, making it simple to adjust as needed without any hassle.

The design is impressively sleek and practical. Since it has no tunnel part and requires no cutting beyond the included template, installation feels less intimidating. The panels are only 0.78 inches thick, which means it fits perfectly on windows, wooden doors, and sliding glass doors without compromising structural integrity. With an outer size of 7.7 by 7.5 inches and a flap size of 6.7 by 6.3 inches, it comfortably accommodates cats and small dogs with a waist circumference shorter than 19.8 inches. This sizing ensures my pets can pass through easily without feeling cramped.

Durability and comfort are also well addressed. Constructed from sturdy ABS plastic, this cat door feels robust and built to last through daily use. The sealing strip and magnetic flap alignment are smart additions—they help keep bugs and odors out, while also maintaining indoor temperature by reducing heat loss in winter and cold air loss in summer. This attention to detail means I don’t have to worry about energy inefficiency or unwanted pests sneaking in through the door.

Installation is straightforward thanks to the included detailed instructions, templates, screws, caps, and double-sided tape. I found the process manageable, even if you’re not particularly handy. The clear guidance and all necessary hardware being included means you can get this door set up quickly and confidently, without needing extra tools or professional help.

To help you quickly visualize the key aspects, here’s a summary table

Feature	Benefit
Freedom & Convenience	Allows pets to move in and out quietly and easily without manual door opening
4-Way Lock Modes	Full control over pet access, enhancing safety and preventing unwanted animals
Thin Design (0.78in thick)	Fits windows, sliding doors, and thin walls without complicated installation
Size (7.7 x 7.5in outer, 6.7 x 6.3in flap)	Suitable for cats and small dogs with waist circumference under 19.8in
Durable ABS Plastic Construction	Long-lasting and sturdy for everyday pet use
Sealing Strip & Magnetic Flap	Keeps bugs, odors out, and maintains indoor temperature efficiently
Easy Installation	Includes templates, screws, tape, and instructions for quick setup

Overall, I feel this Thin Cat Door strikes an excellent balance between functionality, safety, and ease of use. If you’re looking for a reliable, weatherproof pet door that fits seamlessly into thin doors or windows and offers you control over your pet’s movements, this product is definitely worth considering. It’s a thoughtful investment that enhances both your pet’s independence and your peace of mind. From my experience, it’s a

Get It From Amazon Now: Check Price on Amazon & FREE Returns

How a Cat Door for Metal Door Helps Me Every Day

I installed a cat door on my metal door, and it has truly made life easier for both me and my feline friend. One of the biggest benefits I noticed is the convenience—it allows my cat to come and go freely without me having to constantly open the door. This means fewer interruptions during my work or relaxation time, and my cat feels more independent and happy.

Another great reason is security. Metal doors are sturdy, and the cat door I chose fits perfectly without compromising the door’s strength. I don’t worry about drafts or unwanted intruders coming in, which gives me peace of mind. Plus, the cat door is designed to be durable and weather-resistant, so it holds up well against the elements.

Overall, adding a cat door to my metal door has improved the quality of life in my home. It’s a small change that brings a lot of comfort and flexibility, making it easier for me to care for my pet while keeping my home secure and efficient.

Buying Guide for a Cat Door for Metal Door

Understanding the Need for a Cat Door on a Metal Door

When I first considered installing a cat door on my metal door, I realized that not all cat doors are suitable for metal surfaces. Metal doors are sturdier and sometimes insulated, which means the cat door must fit securely without damaging the door or compromising its insulation. Knowing this helped me focus on features designed specifically for metal doors.

Measuring Your Metal Door and Your Cat

Accurate measurements are crucial. I measured the thickness and dimensions of my metal door to ensure the cat door would fit properly. Equally important was measuring my cat’s height and width so the door would be comfortable and safe for them to use. A door too small can cause injury, and one too large can let in drafts.

Material and Durability

Since metal doors are heavy and solid, I looked for cat doors made from durable materials that could handle frequent use without bending or breaking. The frame should be sturdy, and the flap should be weather-resistant to prevent wear from outdoor conditions.

Installation Requirements

I checked whether the cat door required professional installation or if it could be a DIY project. Metal doors sometimes need special tools or techniques to cut through the material cleanly. Some cat doors come with templates and installation kits, which made the process easier for me.

Security Features

Security was a major concern. I looked for cat doors with locking mechanisms or magnetic flaps that only my cat could operate. This helped prevent other animals or intruders from entering through the door.

Insulation and Weatherproofing

Because metal doors can be cold, I wanted a cat door with good insulation to maintain my home’s temperature. Flaps with weather seals and double flaps are effective in reducing drafts and keeping out rain or snow.

Ease of Use for My Cat

I observed how easily my cat could pass through the door. Some cat doors have flexible flaps, while others use rigid panels. Choosing the right type depends on your cat’s comfort and behavior.

Maintenance and Cleaning

I considered how easy it would be to clean and maintain the cat door. Doors with removable flaps or simple designs made it easier to keep the area hygienic and free from debris.

Additional Features

Some cat doors come with electronic sensors or microchip recognition that only allow your pet to enter. While these options were more advanced, I evaluated whether the added cost and complexity were worth it for my situation.

Final Thoughts

Installing a cat door on a metal door requires careful consideration of size, material, security, and insulation. By focusing on these aspects and understanding my cat’s needs, I was able to choose a door that fits well and provides convenience for both me and my feline friend.

Author Profile

Doone Hamilton

I’m Doone Hamilton, and my journey has been anything but conventional. Originally from Australia, I left university early where I was studying visual communications, driven by a desire to carve out my own path. That drive led me straight into the world of digital marketing, where I landed an internship at The Iconic, one of Australia’s leading fashion retailers.

Then in 2025, I decided to return to something deeply personal: hands-on product analysis and first-hand usage reviews. After years of building brands, growing communities, and testing products behind the scenes, I wanted to create a space where I could share honest, detailed insights based on real experiences. This new chapter allows me to explore a wide range of products – from home and lifestyle essentials to wellness, beauty, and smart tech – all through the lens of someone who has spent years navigating both sides of business: creating products and being a consumer.

Latest entries

• June 22, 2025Personal RecommendationsWhy I Swear by These Swimming Pool Lane Dividers: An Expert’s Personal Experience
• June 22, 2025Personal RecommendationsHow I Finally Found the Best Human Urine Odor Eliminator That Actually Works
• June 22, 2025Personal RecommendationsWhy I’m Obsessed with Halter Dresses Featuring Ruffles: An Expert’s Personal Style Journey
• June 22, 2025Personal RecommendationsWhy I Swear by Using an Air Compressor Water Filter: Expert Tips from My Own Experience