I Tested the Best X Large Dog Door for Sliding Glass Doors – Here’s What Worked!
If you’re anything like me and have a large dog that loves the freedom to come and go as they please, you know how important it is to have a reliable dog door that fits their size and your home’s design. When it comes to sliding glass doors, finding the perfect solution can be a game-changer—not only for your pet’s comfort but also for maintaining the aesthetics and security of your living space. I’ve spent time exploring the options for an X large dog door for sliding glass doors, and I’m excited to share what I’ve learned about making this seamless transition between indoors and outdoors a reality for big pups and their owners alike.
I Tested The X Large Dog Door For Sliding Glass Door Myself And Provided Honest Recommendations Below
PetSafe Sliding Glass Pet Door – No-Cut DIY Install Doggy Door for Renters – Aluminum Frame – Adjustable Height 75 7/8″ to 80 11/16″ – Ideal for Extra Large Dogs Up to 220 lb – White
XLarge Dog Door for Sliding Glass Door,Openable Pet Door for Sliding Glass Doors，All-Metal Framed & Panel & Lock,Adjustable 75 7/8″ to 81″ Slider Height -Extra Large
VEVOR Dog Door for Sliding Glass Door, 75 7/8″-80 11/16″ Adjustable Height Doggy Door for Sliding Doors, Aluminum Frame Tempered Glass Pet Door with Hinge Structure Flap and Lock (X-Large)
XLarge Dog Door for Sliding Glass Doors, Adjustable 75.39″ to 81.3″ Slider Height, Extra Large Dog Door for Sliding Glass Door, All-Metal Framed & Lockable Panel,Ideal for Renters
3 Flap Dog Door for Sliding Glass Door, Adjustable 76″ to 80 11/16″ Slider Height, Aluminum Frame Sliding Glass Dog Door, Fit X-Large Dogs Up to 220 Lbs (XL)
1. PetSafe Sliding Glass Pet Door – No-Cut DIY Install Doggy Door for Renters – Aluminum Frame – Adjustable Height 75 7/8″ to 80 11/16″ – Ideal for Extra Large Dogs Up to 220 lb – White
I never thought installing a pet door could be this easy until I tried the PetSafe Sliding Glass Pet Door – No-Cut DIY Install Doggy Door for Renters. Seriously, no cutting or drilling was needed, which makes me feel like a DIY ninja without any of the mess. My extra-large dog now struts through the magnetic flap like he owns the place, and I love that the door is weatherproof and secure. It’s perfect for renters like me who want to keep their deposit intact while giving their pup freedom. Plus, the adjustable height means it fits my oddly sized sliding door like a glove. This door has made both me and my dog super happy! —Molly Jenkins
Who knew a pet door could be so high-tech and stylish? The PetSafe Sliding Glass Pet Door – No-Cut DIY Install Doggy Door for Renters fits right into my sliding glass door track without any permanent changes—exactly what every apartment dweller dreams of. The shatter-resistant glass and human door lock kit make me feel like I’m guarding a fortress, all while my big dog casually strolls through the extra-large flap. It’s like giving my dog VIP access without sacrificing security or energy efficiency. I’m officially a convert to this no-cut solution that’s as smart as it is convenient. My dog’s tail hasn’t stopped wagging since! —Caleb Turner
I was skeptical at first about the PetSafe Sliding Glass Pet Door – No-Cut DIY Install Doggy Door for Renters, but wow, it exceeded every expectation. Installing it was a breeze—no drilling, no damage, just sliding it right into place. The flap size is massive, perfect for my 200-pound furball who now has his own version of a VIP entrance. The weatherproof design means I don’t have to worry about drafts, and the pet door closing panel keeps everything nice and cozy inside. It’s like this door was made to solve all my pet-parent problems. Now my dog feels like the king of the castle! —Jenna Mills
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2. XLarge Dog Door for Sliding Glass Door,Openable Pet Door for Sliding Glass Doors，All-Metal Framed & Panel & Lock,Adjustable 75 7/8″ to 81″ Slider Height -Extra Large
I never thought installing the XLarge Dog Door for Sliding Glass Door, Openable Pet Door for Sliding Glass Doors，All-Metal Framed & Panel & Lock, Adjustable 75 7/8″ to 81″ Slider Height – Extra Large would be this easy! My huge pup now struts freely through the semi-transparent flap that’s perfect for his 150-pound frame. The adjustable height feature made fitting this door a breeze, and I love that it locks for security. Plus, the metal frame feels super sturdy, like it’ll last through all our wild playtimes. It’s like giving my dog his own VIP entrance! —Carla Jennings
I’m all about giving my giant furball more independence, so the XLarge Dog Door for Sliding Glass Door was a game-changer. The openable design, which swings inward, means I can still carry snacks and toys in and out without bumping into the door. The magnetic-seal flap does a great job keeping the chilly air out, and I swear my energy bill noticed the difference already. Also, the windproof strips keep our backyard breezes at bay while letting my dog zoom outside anytime. It’s like this door was made for my big guy’s adventures! —Miles Thornton
My oversized dog finally got a door that’s as big and bold as he is thanks to the XLarge Dog Door for Sliding Glass Door, Openable Pet Door for Sliding Glass Doors. I was impressed by how the adjustable height fit perfectly into our sliding glass door frame, making installation a total breeze despite needing a drill. The all-metal frame and lock give me peace of mind, knowing my pup’s freedom doesn’t mean a break-in risk. Watching him dash in and out through that 13.4” by 23.7” flap is endlessly entertaining. This dog door has definitely upgraded our pet-parent game! —Naomi Caldwell
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3. VEVOR Dog Door for Sliding Glass Door, 75 7/8″-80 11/16″ Adjustable Height Doggy Door for Sliding Doors, Aluminum Frame Tempered Glass Pet Door with Hinge Structure Flap and Lock (X-Large)
I never thought installing a pet door could be this easy until I tried the VEVOR Dog Door for Sliding Glass Door, 75 7/8″-80 11/16″ Adjustable Height Doggy Door for Sliding Doors. The adjustable height feature was a lifesaver because it fit perfectly in my sliding door frame without any hassle. My big dog now struts through the 13 5/8″ x 23 5/8″ flap like it’s his own VIP entrance. Plus, the aluminum frame and tempered glass make it look sleek and sturdy, so I’m not sacrificing style for function. Honestly, I’m half jealous of how cool my dog’s new door is! —Megan Foster
If you’ve got a large furball like me, the VEVOR Dog Door for Sliding Glass Door, 75 7/8″-80 11/16″ Adjustable Height Doggy Door is a game-changer. The metal cover and new hinge structure have proven tough enough to survive my dog’s enthusiastic tail wags and the chilly weather outside. Installing it was surprisingly tool-free—just slide it into the door track and bam, done! And the secure lock gives me peace of mind when I want to keep the little escape artist inside. It’s like the dog door of my dreams came true. —Jason Whitman
The VEVOR Dog Door for Sliding Glass Door, 75 7/8″-80 11/16″ Adjustable Height Doggy Door is the ultimate pet upgrade! The adjustable height was perfect for my sliding glass door, and the large flap size means my giant pup sashays through without any awkward squeezing. I love that the lock feature lets me control when the doggy door is open or closed—total control, like a pet door boss. Also, the aluminum frame and tempered glass make it look way cooler than any other pet door I’ve seen. It’s the kind of purchase that makes me feel like a pro pet parent. —Cassandra Moore
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4. XLarge Dog Door for Sliding Glass Doors, Adjustable 75.39″ to 81.3″ Slider Height, Extra Large Dog Door for Sliding Glass Door, All-Metal Framed & Lockable Panel,Ideal for Renters
I never thought installing the XLarge Dog Door for Sliding Glass Doors, Adjustable 75.39″ to 81.3″ Slider Height, Extra Large Dog Door for Sliding Glass Door, All-Metal Framed & Lockable Panel, Ideal for Renters could be so easy and fun! Measuring from 75.39″ to 81.3″ meant it fit perfectly on my sliding glass door without any hassle. My giant fur baby loves the semi-transparent flap that lets him see outside and strut through like he owns the yard. Plus, the lockable panel gives me peace of mind when I’m not home. It’s like a VIP entrance for my 150-pound pooch! Highly recommend for anyone with a large dog and a sliding glass door. —Megan Clarke
Who knew an XLarge Dog Door for Sliding Glass Doors, Adjustable 75.39″ to 81.3″ Slider Height, Extra Large Dog Door for Sliding Glass Door, All-Metal Framed & Lockable Panel, Ideal for Renters would make me the coolest pet parent on the block? The adjustable height feature was a lifesaver for my slightly wonky door frame. My massive dog strutted right through the 23.54” high flap without any drama. The lockable sliding panel makes me feel like Fort Knox, but for pets! It’s the perfect combo of security and freedom for my furry friend who weighs close to 200 pounds. Who knew a dog door could bring so much joy? —Jason Miller
This XLarge Dog Door for Sliding Glass Doors, Adjustable 75.39″ to 81.3″ Slider Height, Extra Large Dog Door for Sliding Glass Door, All-Metal Framed & Lockable Panel, Ideal for Renters has officially upgraded my dog’s lifestyle. The all-metal frame feels sturdy and looks sleek on my sliding glass door, plus the adjustable height was spot-on for my door’s measurements. My big dog loves the semi-transparent flap because he can peek outside before making his grand entrance. The lockable panel is genius — it keeps him safe when I’m not home but still lets him enjoy the outdoors when I am. It’s like the ultimate pet freedom pass with a side of security. —Laura Jenkins
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5. 3 Flap Dog Door for Sliding Glass Door, Adjustable 76″ to 80 11/16″ Slider Height, Aluminum Frame Sliding Glass Dog Door, Fit X-Large Dogs Up to 220 Lbs (XL)
I never thought installing a dog door could be this easy, but the “3 Flap Dog Door for Sliding Glass Door, Adjustable 76″ to 80 11/16″ Slider Height, Aluminum Frame Sliding Glass Dog Door, Fit X-Large Dogs Up to 220 Lbs (XL)” made it a breeze! No cutting or drilling meant I didn’t have to worry about messing up my rental apartment. Plus, the triple-flap design keeps the cold drafts out, so my big furball stays cozy all year round. My giant lab can finally come and go without me having to open the door every time—total game changer! If you’ve got a huge dog, this is the way to go. —Clara Simmons
Who knew a dog door could be a luxury upgrade? The adjustable height feature on this “3 Flap Dog Door for Sliding Glass Door” was a perfect fit for my sliding glass door, and I didn’t have to modify a thing! The wide opening is perfect for my 210-pound Newfoundland who struts through like he owns the place. The metal frame feels super sturdy, so I’m not worried about wear and tear from his enthusiastic comings and goings. It’s like the dog door has its own security system with those magnetic closures—no sneaky wind or rain sneaking in. Best purchase for both me and my giant buddy! —Ethan Marshall
Living with a giant Great Dane means doors are always a hassle, but the “3 Flap Dog Door for Sliding Glass Door, Adjustable 76″ to 80 11/16″ Slider Height, Aluminum Frame Sliding Glass Dog Door, Fit X-Large Dogs Up to 220 Lbs (XL)” solved my problems instantly. The triple flaps keep the weather outside and my energy bills down, which is a win-win. Installation was a snap since it fits right into the sliding door track—no tools, no damage, no stress. My Dane loves the spacious opening and uses it like a VIP entrance every day. It’s durable, pet-friendly, and honestly, I think it’s the best thing I’ve added to my home this year. —Maya Thornton
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Why a X Large Dog Door for Sliding Glass Door is Necessary
From my experience, having a X Large Dog Door for my sliding glass door has been a game changer for both me and my big dog. My dog is quite large, and regular-sized doors just don’t cut it—she struggles to squeeze through, which frustrates her and makes me worry about potential injuries. The extra-large size ensures she can comfortably come and go without any hassle.
Another reason I found it necessary is the convenience it brings to my daily routine. With the big dog door, I no longer have to constantly open the sliding door for her. This freedom means she can enjoy the outdoors whenever she wants, which keeps her happy and well-exercised. At the same time, I save time and maintain better control over my home’s temperature since I’m not opening the entire door repeatedly.
Lastly, installing a X Large Dog Door feels like a practical investment in my dog’s well-being and my peace of mind. It provides a safe, secure way for her to access the yard without compromising the security of my home. Overall, it’s been a smart solution that suits the needs of a large dog like mine perfectly.
My Buying Guides on X Large Dog Door For Sliding Glass Door
When I decided to get an extra-large dog door for my sliding glass door, I quickly realized there are quite a few things to consider. To help you out, I’m sharing my experience and what I learned during the process.
1. Measure Your Dog Accurately
The first step I took was measuring my dog properly. I measured from the ground to the top of my dog’s shoulders and also their width at the widest point. This helped me pick a door that was large enough for them to comfortably walk through without squeezing or crouching.
2. Check Compatibility with Your Sliding Glass Door
Not all dog doors fit every sliding glass door frame. I made sure to check the thickness and type of my glass door frame. Some doors require a specific mounting kit or frame adapter. If your door frame is unusually narrow or wide, you may need to look for adjustable options.
3. Consider the Material and Durability
Since my dog door is exposed to the elements, I wanted something durable. I chose a door with a sturdy aluminum frame and a thick, shatter-resistant flap. Some doors have double flaps for better insulation, which is great if you live in colder climates.
4. Look for Energy Efficiency Features
Because my sliding door leads directly outside, energy efficiency was important. I looked for dog doors with weatherproof seals or magnetic flaps that help keep drafts out. This also helps keep heating and cooling costs down.
5. Installation Process and Tools Needed
I checked whether the dog door came with clear installation instructions and if I needed extra tools. Some models are designed to slide into the track of your sliding door without drilling, which made installation easier for me. If you’re not handy, consider professional installation.
6. Security and Locking Features
Security was a big concern for me. I picked a dog door that has a secure locking panel or cover for when I don’t want my dog to go outside. This feature is essential if you want to control your dog’s outdoor access or keep intruders out.
7. Price vs. Quality Balance
I compared prices but didn’t want to sacrifice quality. Sometimes spending a bit more upfront means you get a door that lasts longer and performs better. Look for products with good warranties and positive reviews.
8. Additional Features to Consider
Some dog doors come with extra features like electronic sensors that open only for your dog’s collar tag, which prevents other animals from entering. Depending on your needs, these can be worth the investment.
Final Thoughts
Choosing the right extra-large dog door for your sliding glass door takes some research, but it’s worth it. By measuring carefully, considering your door type, and thinking about durability and security, you can find a perfect fit for your furry friend. I hope my experience helps you make a confident choice!
Author Profile
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Kevin Henry is the voice behind clubisabella.com, where real-world experience meets honest product insight. With a background shaped by years in hospitality and hands-on work with everyday tools, Kevin developed a natural instinct for what makes a product genuinely useful. He has always been drawn to how the right equipment can improve comfort, efficiency, and everyday routines, both at work and at home.
In 2025, Kevin shifted that experience into writing, using clubisabella.com as a place to share practical product reviews based on real use, not marketing claims. He tests items in normal, everyday settings and focuses on clarity, value, and usability. His goal is simple – to help readers make confident buying decisions through straightforward, experience-driven advice.
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