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MIAOTONG

3-Flap Never Rust Extra Large Dog Door for Doors with Sliding Lock Panel

  • Based on 769 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
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Arrives Tuesday, Sep 8
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Size: X-Large


Set name: For Door


Features

  • Freedom and Security: Every pet deserves the freedom to explore their home and be close to their family. Our extra large dog doors with built-in locks ensure your pet's independence while controlling access. Our well-designed xl dog door for exterior doors allow pets to pass freely while protecting your home
  • Upgraded 3-Flaps Design: The 3-flaps design of the extra large pet door provides superior protection from the elements and enhanced insulation to keep extreme temperatures out. This extra large dog door not only insulates against extreme weather conditions and drafts, but also ensures that your home remains comfortable and energy efficient
  • Superior Durability: The xl doggy door is made entirely from metal laser welding process and oxidised high quality steel and aluminium alloys to ensure durability, security and thermal insulation. Advanced welding technology ensures strength, rust resistance and a perfect finish that won't flake. Built to last, this xl pet door is ideal for multi-pet households
  • Easy Installation: Easily fits into wood, PVC, and metal doors ranging from 1.2 to 2 thick. This insulated dog door comes pre-assembled, and includes templates and detailed instructions for a hassle-free installation. This extra doggy door comes with a metal closing panel
  • Intimate Customer Service:MIAOTONG is committed to providing our customers with high-quality products and excellent after-sales service. If you have any questions about this xl dog door, please contact us, we will follow up and solve the problem for you at the first time

Description

Will my dog easily learn to use this dog door? Most dogs quickly learn to navigate the dog door with some positive reinforcement training. The lightweight flaps are designed for easy access, which means your dog can push through without much effort. How does the sliding lock panel work? The sliding lock panel provides enhanced security, allowing you to control when your dog can enter or exit. This feature is beneficial if you need to restrict access during certain times, ensuring your pet isn’t roaming outdoors unsupervised. Is the extra large dog door suitable for all weather conditions? Yes. 3-flaps design minimizes drafts and heat loss, making it ideal for both hot summers and cold winters. Many pet owners appreciate this feature, as it allows their pet to enjoy outdoor access year-round without compromising home energy efficiency. Can this xl dog door be installed in different types of doors? This 3-flaps dog door for door is versatile and can be installed in various door types, including wooden, metal, or PVC doors. The installation process includes setting the frame properly according to the door material and thickness. How does the 3-flap design work? Three overlapping magnetic flaps seal independently. When your pet pushes through one, the others stay closed — blocking drafts and reducing heat loss. Provides better insulation than single or double-flap options, especially in harsh weather. MAOTONG is committed to investing in R&D and developing high-quality pet products.

Size: X-Large


Brand: MIAOTONG


Color: Xlarge for Door


Material: 3-Flap(Metal Frame,Aluminum Lock)


Mattress Thickness: 2 inches


Size: X-Large


Maximum Compatible Thickness: 2 inches


Minimum Compatible Thickness: 1.2 inches


Weight Capacity Maximum: 220 pounds


Material Type: 3-Flap(Metal Frame,Aluminum Lock)


Frame Material: Aluminum


Dog Breed Size: Giant


Pet Type: Dog


Closure Type: Magnetic


Brand Name: MIAOTONG


Unit Count: 1 Count


Number of Items: 1


Manufacturer: MIAOTONG


Model Number: Pet Door


Manufacturer Part Number: Pet Door


Color: Xlarge for Door


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 8

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.

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Similar Products

Top Amazon Reviews

    • Very Sturdy
Size: Large Set name: For Door
Review Image by Jen S
Review Image by Jen S
This dog door is very sturdy. I am keeping it. PROS: - It is made of good quality products. - The three flaps together, with the magnets, is heavy. No air gets in. - Appearance is great. It blends in well with a white door. CONS: - Directions aren't very clear on which side goes inside/outside. - Hardware doesn't accomidate for varies door widths. I had to buy longer bolts and nuts. - Flaps can be to heavy for smaller and elderly dogs. ... show more
Reviewed in the United States on August 7, 2026 by Jen S
    • Durability
Size: X-Large Set name: For Door
We have Cane Corso's, and I originally thought that the door would be too small, but it works! We bought the XL door, and it was easy to install, and apparently, it's easy to remove (with some force)... We came home one day and our 150-pound Corso had removed it all by his little self. We have a few of these pups, and not too many people are interested in crawling through a human size dog door so I wasn't too worried about the gapping uncovered hole, but it was easily put back in with some bigger screws. It actually is a nice dog door and it is very durable, but if you have big dogs, you know it's not really about how the door is built, but more how the dog is built... ... show more
Reviewed in the United States on July 7, 2026 by Bobby S.
    • Best XL dog door on the market
Size: X-Large Set name: For Wall
Review Image by Northwoods
Review Image by Northwoods
If you have a large dog, don’t even waste your time on that junk from Petco or PetSmart. This is the same price, and you can see in my photo that I have the large-size model from the big box stores sitting inside the opening for this one. This is a much better door. It has three flaps instead of two, it’s made of metal, and it feels far more durable. If you’re looking to install a dog door through a wall, this is the best bang for your buck. using the XL for a Great Dane a medium size rescue dog and a 15 pound Italian greyhound ... show more
Reviewed in the United States on June 3, 2026 by Northwoods
    • Poor Instructions - UPDATED
Size: X-Large Set name: For Door
Installed the X-large yesterday. Instructions said to measure shoulder height of your dog then looking at the cut template it had a horizontal line for shoulder height. So I measured from the floor up on the door and put a mark at shoulder height, then placed the shoulder height line of the template on the mark and using a level I leveled the template out and taped it up. Drew a line all around the edge of the template, removed the template and once again checked for level. Then I cut a hole in my door. The instructions say to test fit the interior side of the doggy door (side with the flap). Little confusing because both sides have a flap. One has the outside cover flap and the insulating flap the other just has the cover flap. I guessed it meant the one with the insulating flap so that went inside. The hole I cut was about 1-1/2” larger all around than the door needed. I had to shim up the bottom with a 1” piece of scrap. So don’t trace around the included template, use the inside of the doggy door frame to draw your cut-out. After recovering from the excessive hole I cut I then drilled holes through the door using the pre-drilled holes in the doggy door frame. It’s imperative to drill these holes as straight as possible. After shoving the bolt thru if the bolt is at an angle you won’t get the other side on. Anyway, the kit comes with an assortment of mounting hardware. Drywall anchors and bolts, wood screws, cover caps… My door is 1-3/4” thick, not one of the included bolts was long enough to go thru the door. Picked up a handful of #8 nuts and bolts (3”) at Lowes and then after getting it all together I cut the excess off. I couldn’t use any of the included hardware. I’m giving it 3 stars for the confusing instructions and mostly having to drive up to Lowe's and back just to get 4 #8 X 3” screws and nuts. UPDATE: The seller must be reading these reviews and reached out to me apologizing for the confusion and offered to make things right. They even said they would be revamping the instructions to hopefully avoid such confusion in the future. I originally gave this product 3 stars because I believe it to be a decent product and looks and feels heavy duty. It was just the hassle I went thru to install it. But I'm upping my 3 star to a 4 star review because of the sellers consideration to future buyers and willingness to meet me halfway on the product. ... show more
Reviewed in the United States on March 29, 2026 by Lloyd
    • best doggie door ever
Size: X-Large Set name: For Door
Review Image by Brad Frazier
Review Image by Brad Frazier
super easy to install. Actually large size and all the hardware you need. A great choice for a doggie door..
Reviewed in the United States on August 4, 2026 by Brad Frazier
    • Perfect!
Size: X-Large Set name: For Door
The door was perfect for the door and the dogs!
Reviewed in the United States on August 21, 2026 by Kim Philips
    • For small dogs or calmer breeds
Size: Large Set name: For Wall
This looked like a great door and if you have a small calm or elderly dog it be great. We have a German shepherd and a schnauzer, which apparently are too rough. Main part of the door works great, but the little metal slides that hold the thing that blocks the hole, fell off. Was super easy to install and didn’t leak. ... show more
Reviewed in the United States on August 18, 2026 by latisha plumley
    • Self closing and great value
Size: Medium Set name: For Wall
Review Image by Kim
3 layers of protection from the elements. Magnets are sturdy and the door closes itself each use. Price was really good for quality. Cleans up well. Size works great for my 9lb yorkie. It would easily be great for a 20lb dog too.
Reviewed in the United States on August 12, 2026 by Kim

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