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MIAOTONG

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

  • Based on 801 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Oct 28
Order within 2 hours and 23 minutes
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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, flap dimensions 14 1/2"W x 24 7/8"H
  • 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 xl 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
  • Exclusive Patented Design:MIAOTONG pet door features a unique, patented design that combines durability with a sleek, modern look. The innovative structure ensures a perfect fit for various door types while offering a seamless experience for your furry friends. This original design guarantees quality and protects against imitation
  • 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. Is it compatible with different doors? Why are the screws short? Yes, this 3-flap dog door fits wood, metal, and PVC doors. Note they are NOT single long bolts passing through the door. The two parts install separately (8 screws total). Please choose the right screw length based on your specific door thickness. Why are the screws short? Do they go through the door? No, they are not single long bolts connecting the interior and exterior through the door. The two parts install separately to their own brackets (8 screws total). Please choose the right length based on your specific door thickness. 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: Wednesday, Oct 28

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

    • Way Better Quality Than Petsafe.
Size: Medium Set name: For Door
Review Image by Bryan
Extremely good quality for the money absolutely love the way that it fits against the door. The only thing I can add that for some strange reason when my cat goes through it slower, it doesn’t want to close all of the way like it does when the dog goes through it.
Reviewed in the United States on September 6, 2026 by Bryan
    • 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
    • Works great for xl dogs
Size: X-Large Set name: For Door
Dog door is very well made, heavy duty magnets on flaps, easy to install with template, looks great,
Reviewed in the United States on September 29, 2026 by Kindle Customer
    • 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
    • It works
Size: X-Large Set name: For Wall
This is awesome. We have 2 Great Pierennes and a pit bull. With this door they can come and go as they please.
Reviewed in the United States on September 19, 2026 by Dave
    • Good product for the price
Size: Large Set name: For Door
Review Image by Great Faucet
It’s been a few days since I installed the door and so far it’s a good item. I’m working on trying to get my pet to get used to going through it.
Reviewed in the United States on September 16, 2026 by Great Faucet
    • This just isn't right
Size: X-Large Set name: For Door
Screws are definitely too short and it didn't even send the correct screws but a bunch of other types of screws. Only one locking slide cover which is fine. It says in the directions to slightly loosen the screws and then you can adjust the flaps but it is absolutely ridiculous trying to get the screws to loosen up enough to adjust the flaps, and there is no way to take them off at all which you're supposed to be able to in order to replace the flaps! We've been working on this door for two days now trying to adjust these flaps so the dogs can use it and just can't without bending the bar. Can't even get to the screws for the middle flap to adjust it so I have no idea how we're gonna be able to do that! Very disappointed in the flap adjustment system however, the door is definitely nice and thick for good winter usage. Very well insulated on the inside anyway. The template was way too big for the door so I'm glad I pay attention or I would have seriously overcut what I needed to in order to put the dog door in ... show more
Reviewed in the United States on September 24, 2026 by Totalynutz
    • Best dog door for its price
Size: X-Large Set name: For Wall
I’m have been searching for a LARGE door for my kennel business and this one is it. And I love how heavy and sturdy it is. I am ordering another one. And other websites for the same type door they want $300-750. Are you kidding me.
Reviewed in the United States on October 5, 2026 by Misty Eslinger

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