Medium Dog Door for Sliding Glass Doors, Adjustable Height 75 7/8" to 81", All-Metal Framed, Perfect for Medium Pets Up to 40 Pounds
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Availability:
Only 1 left in stock, order soon!
Arrives
Saturday, Sep 19
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Color: 81" Sliding Door
Size: Medium - 1 Flap
Features
- Attention Before Purchase: Our glass dog door has a fixed - swing mechanism. If it's installed on the left side of the glass door, it can only open inward. If installed on the right side, it can only open outward. This is non - adjustable because of the design structure. Also, note that installation demands using a drill to bore holes in the door frame.
- Openable Design: Our dog door for sliding glass doors opens inward to maximize limited space, making it easy for people to move items in and out of the backyard. Additionally, we've filed for a patent.
- Adjustable Height: The medium doggie door for the sliding door frame adjusts from 75 7/8" to 81" in height, with a glass door width of 12.8". This fits most villa and patio sliding glass doors. To ensure the correct height, measure from the top track to the inner bottom track of your aluminum sliding door frame.
- Perfect for Medium Pets: Our sliding glass door pet door features a semi - transparent flap that measures 8.1 wide by 12.3 high. This size provides a clear view and easy passage for pets weighing up to 40 pounds. Additionally, it comes with a safety lock, enhancing home security while allowing you to control your pet's access.
- Energy Efficient & Weatherproof: Our medium doggie door for sliding doors is crafted with a robust aluminum frame, a magnetic - seal flap, windproof strips, and a convenient slide - in closure panel. This combination is expertly designed to stand up to harsh weather conditions, ensuring your home remains cozy, secure, and energy.
- Premium Service, Happy Pets: Unleash your pet's adventurous spirit with eillion's dog doors for sliding glass doors. Grant your furry friends the freedom to safely explore the outdoors. Our committed customer service team is always on standby to answer any questions you may have. Don't hesitate to reach out if you have any concerns
Size: Medium - 1 Flap
Brand: Eillion
Color: 81" Sliding Door
Material: Metal
Mattress Thickness: 10 inches
Size: Medium - 1 Flap
Maximum Compatible Thickness: 10 inches
Weight Capacity Maximum: 40 pounds
Material Type: Metal
Frame Material: Aluminum
Dog Breed Size: Medium
Pet Type: Dog
Closure Type: Slide-in
Color: 81" Sliding Door
Brand Name: Eillion
Unit Count: 1 Count
Number of Items: 1
Manufacturer: Eillion
Model Number: Medium Dog Door
Manufacturer Part Number: Medium Sliding Glass Door
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Sep 19
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: 81" Sliding Door
Size: Large - 1 Flap
Not only is this sliding glass door pet door affordable, the engineering concept of a swing-out slider doggie door is just plain brilliant! We bought the regular Large size. First things first! Watch the installation video on YouTube and read through the rather vague instruction manual “twice” BEFORE you assemble anything. You will notice they don’t align in terms of the assembly steps, but they’ll help you get the job done more efficiently. Both the installation video and the written instructions could be better. ;) A single person could certainly install this by themselves, although it is definitely easier with an extra set of hands. When we assembled the door frame bracket ( ] ) the upper portion of the bracket was screwed to the side frame per the instructions. However, the top screws needed to be unscrewed when installing the patio door frame so you can extend the frame to fit the opening (don’t forget to use the little piece of cardboard as the top spacer with the sticker on it that says “save this piece of cardboard” on it). Lucky for us our door was plumb and square so no issues with that thankfully, although shims are provided. We also have a “slide rail” on the bottom track of our door so we did not need to screw the bottom frame bracket into the slider frame and it fit nice and snug so we didn’t need the T brackets either. Upon opening we saved the shipping box, opened it up and laid it on our kitchen table to use as our “work area” while we assembled the sections of the door. If you have any magnet trays or bowls, use those to keep screws from rolling around. With both of us working together, it took us just under two hours to install the door, BUT, that included a trip to Home Depot to get upgraded weatherstripping. We did not use any of the weatherstripping included in the packaging. We bought three sizes and types of white rubber weatherstripping plus upgraded ¼” “brush” weatherstripping and installed different ones around the door to get the best possible seal. Our door is sealed tight and is very snug. It snows here so a good weather seal is important. It does come with a door lock that can be installed, but that lock installation requires you to drill holes into the interior side of the sliding glass door panel above your handle, which we didn’t like. Instead we opted to use the old-fashioned screw-tight door/window frame locks for the top and bottom of the door if we need to lock the slider. The door is surprising well-built for the price. We bought a name brand pet door from Home Depot for our bedroom slider years ago that cost more money and isn’t as functional and this one is easily as good, if not better quality. We LOVE that it unlocks and swings open if we need more room or have people over. The parts all fit together well, it is nicely made of sturdy aluminum, and the locks and door flap are certainly as good as any other similar slider pet doors you would get at a big box store. Highly recommend! We have an 80 lb Labradoodle, a Sheltie and a Pomeranian, plus two cats who use this door. The magnets are pretty strong so it requires the smaller animals to push a little harder, but they all figured it out pretty quick.
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Reviewed in the United States on October 7, 2025 by UrbanUtah
Color: 81" Sliding Door
Size: Large - 1 Flap
I recently purchased this Sliding Glass Pet Door and it’s been a great addition to our home. The installation was straightforward, the instructions were clear, and the door fits securely in the track of our sliding glass door. I also watched a youtube video they offer to help with the installation. Our pet learned to use it very quickly and now goes in and out without us having to constantly open the door. The flap closes well and helps keep the cold and bugs outside. The materials feel sturdy and well made. I was also impressed with the customer service. The seller was very responsive and helpful with my questions about extra locks for the access door. Overall, I’m very happy with this purchase and would recommend this pet door to other pet owners.
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Reviewed in the United States on November 24, 2025 by Jose Abreu
Color: 81" Sliding Door
Size: Large - 1 Flap
A lot of minor issues as listed with other reviews. That's why 4 stars instead of the 5. Quality of the dog door is really good overall. The magnet on the flap has a good hold, the puppies and the dog go easily in and out of it. I really like that the dog door can lock to my slider and stay secured when I'm not home. The way the slider closes now having a dog door leaves a small space where heat, bugs or rain could get in. I would suggest adding a small seal to that part of the door if anyone comes across that issue. (picture attached above) Issues we came across... -Leveling was an issue but easily fixed. -When adjusting the height of the door one of the springs popped out fully and needed to be put back in, inorder to lock the proper height in for the door. -Weather stripping that was provided was a little too thin so had to buy a thicker weather strip to close the gaps. And we applied cocking were some of the seals had small gaps where weather strip can't fit. -Some of the screw holes needed to be drilled more in order to get hardware to fit properly. -The lock to the dog flap doesn't pair well. If slider is closed and door flap is locked you need to open the slider to then unlock the lock to the flap. I don't plan on using that feature but want to make any buyer aware. Also the door for the flap does not stand up evenly when locked in the up position. It slants to the side as mentioned in another review. I'm happy with the door and love how it can open up. Its convenient and was kinda worth the hassle 😅 but I don't think I'd buy this specific one again just because of all the minor issues that we came across when installing. We had a regular dog door before that was waaaay easier to install but it didn't have the locks and ease of access like this door does.
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Reviewed in the United States on June 23, 2026 by Hayley
Color: 96" Sliding Door
Size: Xlarge - 1 Flap
This item is the best. I have a 50lbs husky, and everytime we do a 2 days volleyball tournament we always put our dog to daycare and overnight, and it cost me $150-$200 per weekend. With this dog door partner with my automatic dog feeder we can leave our dog at the house. We just set up our camera to make sure everything is okay. Even with a small sliding door it's a plus that we can open the dog door also. And at night we just lock it and put the metal cover for the dog door. Over all I'm very satisfied with this purchase. It saves me a lot with the dog daycare. Easy to assemble, and one person can do it.
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Reviewed in the United States on August 24, 2026 by Zeke Flux
After installing this dog door, theses are my experiences to share and some comparisons with my previous dog door. The pictures describe some of the issues encountered. First, I think this dog door is more substantial than my previous one, it is heavier and the glass feels thicker. Obviously, the major appeal is the ability to open and close the door for human access. The installation is much more permanent (with self tapping wood screws onto the frame) than wedging the dog door in between the sliding door and frame. Second, I encountered some instructional assembly issues. I'm not sure if the hinged glass panel and the hinged dog door were supposed to be installed onto the frame already (that's how they were packaged in the box). The instruction showed every piece unassembled. So it took me a minute to reorient and trace the steps. I still ended up with a few extras screws. I only had 1 option to fit the dog door in my sliding door frame track, which is in the middle of the sliding door track. I would've liked to fit the door in one side of the track or the other, but the door and the gap are both exactly the same width. So I positioned the gap on the bottom of the dog door over the middle track of the sliding door frame. Then, I screwed the dog door frame to the sliding door frame and added some seal strips to wedge the gap on the interior/exterior and top/bottom of the dog door. For now, with this dog door, I opted not to use the dog door lock. It impedes with the metal door when I try to slide it up and down to open and close. When the lock is unlocked, it also impedes with the closure of my glass sliding door. I did not use the regular door lock because I don't want to drill into my sliding door. To "lock" my door, I use a sliding door security bar, aka. a piece of wooden dowel in the door track. The dowel also helped to push the sliding door against the dog door for a better seal. Compare to my previous dog door (which had its own installation issues), I do like this door better. I really do like the ease of locking and unlocking the human door with a simple push of the locks. It took (embarrassingly) a lot longer to assemble and install this door. However, I think I am just more particular about how my sliding door operates with the dog door. I am also more aware of how my dogs sometime rushes out the door and can "abuse" and shift the door. So, I appreciate the long screws in the door frame, and I also spent more time sealing and wedging the gaps to keep the door as stable as possible. I was able to address most of the gaps all along the door. The top of the door is unleveled, but I just need to tinker with it a bit more. It is very irritating that the included seal strips are not great... the only one I think works adequately is the white, flat, rubber-like seal strip along the exterior border of the whole dog door. I think this is a great idea for dogs and humans... however, there are still several issues to work out, e.g., upgrade the seal strips which could solve over 75% of review complaints. The product still needs some reevaluation on the design, e.g., smaller dog door lock, placement of it, or widening the frame by a few cm more. When compared to my other dog door, the metal frame feels more robust and the opening is slightly taller for my huskies. The dog door flap feels heavier and thicker, but I don't think my dogs like the darker gray color... they can't see through it and they think the door is closed... finding the flap replacement may also pose an issue down the road. I wouldvebliked double flaps or something for a better seal and prevent heat/cool air loss. The single flap doesn't really align perfectly with the magnetic strip in the dog frame. Overall, I really like the whole idea of this door. There are good and negative points with this openable dog door. The price point is comparable to the traditional full frame dog door. But, everytime I find a feature I like, there is an issue with the installation, assembly, size, positioning, etc... so it requires substantial personal "customization." In the end, if I had to choose between this and the traditional wall cut out or other full framed sliding dog doors, I think I would pick this product... but it is not quite perfect and requires substantial preparation and time to make this work.
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Reviewed in the United States on January 10, 2025 by GabeGabe
Color: 81" Sliding Door
Size: Xlarge - 1 Flap
There were just a tad bit confusing instructions when it came to using the t-shaped anchors at the bottom. This product is very well engineered and I enjoy it heavily works amazing, decently sturdy. (Obviously wont stand again someone who really wants to break in, but neither will a glass patio door) I caveat, I wish the door sealed a bit better. Overall though this was a great purchase, and being able to swing open the door to reclaim the rest of your patio is phenomenal.
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Reviewed in the United States on May 26, 2026 by Briley
Color: 81" Sliding Door
Size: Xlarge - 3 Flap
Easy to install. Clean look. Decent thermal insulation by flaps, and the weather insulation provided is good. The metal frame transfers more external temperature than I would like, but it's not terrible for the area I live in. Same is true of the glass used Only complaints are the slider/door lock. If the door doesn't sit level with the plane of your sliding patio door, you may need to use a lot of the shims and the screws meant to hold the lock in place won't support the weight of all those shims. My other complaint is that the dog door lock isn't very easy to install and if it actually holds the panel in place is questionable. Less of a complaint and more is a nice to have -- a handle to pull the door in it out, especially when locking in place, would be ideal. Overall, a decent sturdy door that allows easy access to your patio without needing to remove the dog door entirely. I would purchase this product again and would love to see improvements on the items mentioned.
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Reviewed in the United States on April 13, 2026 by Wandering Wolf
Color: 81" Sliding Door
Size: Large - 1 Flap
The door took about two hours to install and had quite a few steps, but it works well and I’m happy with it. I like that it opens wide, making it easier to move things in and out. I gave it 4 stars instead of 5 because the included weatherstrips were unusable—they had little to no adhesive and wouldn’t stick. I’ll need to buy new ones to finish the installation.
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Reviewed in the United States on July 21, 2026 by Irini