Dragon Pet Door for Doors
- Cost-effective solution allows pets come and go as they please
- Sturdy, two-piece flap design keeps entire pet door opening sealed
- Single or double flap options to fit your insulation needs
- Fits standard doors 1 3/8 - 1 3/4 inches thick
- Flexible, translucent flap is easy for pets of all sizes to use
- Medium available in white, cream or black frames and Large available in white or black frames to coordinate with your decor

Product Details
The Dragon Pet Door for Doors is a well-made, economical solution designed to let pets come and go on their own terms while keeping your home sealed. The two-piece flap design features a translucent inner flap and outer U-shaped piece for improved insulation value. Choose between a single or double flap depending on your insulation needs. This cost-effective pet door solution will allow your pet the independence to come and go on their terms, freeing up your time spent playing “doorman” to them. There are other installation types for the Dragon Pet Door. Already have a Dragon pet door? See which replacement flap fits your door.
Features:
- Two-piece flap design maximizes sealing to keep your home insulated
- Option of a double flap for harsher climates, easily turn a single flap into a double flap later by attaching another flap assembly
- Translucent, polyolefin elastomer flap is easy for pets to use
- UV-resistant additives in all parts of the pet door prevent warping and cracking
- Magnets on the flap attract it to the frame
- Simple installation in standard doors 1 3/8 - 1 3/4 inches thick
- Includes a tough, black thermoplastic closing cover to block access when needed
- Telescoping tunnel pieces frame out and protect the interior of your door
Benefits:
- Economically friendly way to allow pets the independence to come and go
- Tough, weather-resistant pet door saves money on your energy bill
- Flexible, lightweight flap perfect for large and small pets sharing
- Enjoy a low-cost pet door with the benefits of excellent insulation for moderate climates
Size Chart
- Medium 7 1/16"w x 13 1/16"h
- Large 9 3/8"w x 16 9/16"h
Flap Dimensions:
7 1/16"w x 13 1/16"h
The entry way your dog goes through.Outside Frame Dimensions
11 5/8"w x 20"h
The outer edge of the pet door.


Rough Cut Out:
10 1/4"w x 18 1/2"h
The size of the hole needed to fit your pet door into your door.Flap Dimensions:
9 3/8"w x 16 9/16"h
The entry way your dog goes through.Outside Frame Dimensions
14 1/8"w x 23 1/2"h
The outer edge of the pet door.


Rough Cut Out:
12 1/4"w x 22 1/4"h
The size of the hole needed to fit your pet door into your door.Flap Size | Flap Dimensions | Rough Cut Out | Outside Frame Dimensions | Minimum Step Over | Recommended Pet Height |
---|---|---|---|---|---|
Small | Coming 2023 | Coming 2023 | Coming 2023 | Coming 2023 | Coming 2023 |
Medium | 7 1/16"w x 13 1/16"h | 10 1/4"w x 18 1/2"h | 11 5/8"w x 20"h | 4” | 11" - 17" |
Large | 9 3/8"w x 16 9/16"h | 12 1/4"w x 22 1/4"h | 14 1/8"w x 23 1/2"h | 4” | 11" - 23" |
Find The Best Pet Door Size For My Pet

A
Pet Height: inches
B
Pet Width: inches
Installation Instructions

Parts
- 1 Flap and Frame Assembly
- 4 Long Frame Screws - 2 ¼" long 10-24 machine screws
- 4 Short Frame Screws - 1 ¾" long 10-24 machine screws
- 4 Frame Nuts - serrated flange 10-24 hex nuts
- 4 Frame Washers - steel 9/16" washers
- 1 Locking Cover - rectangular sheet with a hole near the top
Tools
- Phillips screwdriver
- Electric drill
- 5/16” or 3/8“ drill bit
- Jigsaw, painter’s tape
- Pencil
- Flathead screwdriver (optional)
- 3/8” socket or wrench (optional)
- Pliers (optional)
Step 1 Align the Template

- If possible, remove the door from its hinges using a flathead screwdriver and hammer to tap out the hinge pins. Lay the door flat for installation. Tape the installation template to the door where you want to install this face up.
- Place the top edge of this template at least 4" above your pet's shoulders.
- Check that the bottom of the template is at least 1" from the bottom of the door to maintain the door's strength.
- Check the template top edge with a level.
Step 2 Make the Rough Cutout



- Mark the physical outline of this template with a sharp pencil. Remove this template from the door.
- With a 5/16th (8mm) or or 3/8” (9,5 mm) drill bit (5/16” preferred), drill through the corners of the outline with the tip of the bit directly on the outline’s corners.
- Place your jigsaw into the holes and cut along the lines you drew. You should be making a rectangle connecting the center of each of the holes. Cut as straight as possible; aim to not deviate more than 1/8” from the line on either side.
Step 3 Test Fit the Frame Tunnels



- To test fit the frame tunnels (the flanges on the back of the frame), lay the outside frame face down on the floor.
- Fit the inside frame into the outside frame by first placing the bottom of the inside frame’s tunnel into the bottom-left slot of the outside frame’s tunnel.
- Next, place the right side of the inside frame’s tunnel into the top right slot of the outside frame’s tunnel.
- Remove the frames from each other once you are familiar with how they fit together.
Step 4 Align Frame Pieces



- Rehang your door if you took it off its hinges. Place the outside frame over the rough cutout. Do not place the inside frame into the door yet.
- At least one of the outside frame’s four locator posts (small posts extending from the bottom of the frame—three pictured in the image) will rest on the bottom of the cutout.
- Use painter’s tape to temporarily hold the outside frame in the door. Place tape all around the frame, tightly adhering to the door.
- Ensure that the screw holes in the frame are all visible through the cutout opening, looking at the back of the frame.
Step 5 Fit the Frames Together

- Fit the inside frame into the outside frame, same as in Step 3. You may need to hold the outside frame to keep it from being pushed out.
- Press frames together until both are flush with the door. The locator posts of the inside frame will not be in contact with the rough cutout.
- Use painter’s tape to temporarily hold the inside frame in the door.
Step 6 Position the Frames

Step 7 Screw the Frames in Place




- Reach around the door and place a nut into one of the four pockets on the outside frame, pressing it into the floor of the pocket. Hold it there through the next step.
- Place a frame screw (the 2 ¼” or 1 ¾” screws) with a washer into and through the matching pocket on the inside frame. Start turning the frame screw until it begins to thread into the nut.
- Partially tighten down with a #2 Phillips-head screwdriver. Press the nut into the frame as you tighten it to lock the nut in place. The serrations bite so you don’t have to grip the nut directly. Once the tip of the screw comes through the nut you can press on that instead for the same effect.
- Repeat for all four screws, level the frame, then finish tightening each screw.
Step 8 Seal the Frames

- At this point, there should be washers under the screws on the inside frame and nuts on the outside frame at each of the four points.
- Remove any remaining tape.
- If the frame positions need to be adjusted, loosen screws without removing the nut, make the adjustments, and tighten back down.
- Ensure the frames are flush with your door, are level, and are sturdy.
- With a silicone sealant of your choice, we recommend sealing any gaps on the corners of the inside of the frames, as well as anywhere the two frames meet.
FAQ
What's the difference between the single flap and the double flap? The double flap option provides increased insulation against the cold. Both options have magnets on the flap to keep the door sealed in wind. |
I want to get the large pet door for my dog, but I am concerned about a person fitting through it. All Dragon Pet Doors come with a locking cover. This cover can be used to keep you doggy in. It also can be used to keep intruders from entering your home. It slides into the interior frame. |
How do I know what size is best for my dog? When installing the pet door you want it to clear the top of your dog's back by 1-2 inches, minimum. To give your pet the most comfortable pet door possible, make sure the step-over is less than 1/3 of your dog's height. Lastly you want the width of the door to be big enough to allow your pet to go through without touching the sides. Here's a guide on how to measure your pet with tips on how to determine the correct size. |
Are replacement flaps available? Yes, you can buy Dragon replacement flaps. |
Where can I install the Dragon Pet Door? The Dragon Pet Door has multiple Installation options. You can install it in Regular Doors (using these installation instructions), as a Wall mount, Aluminum Sliding Doors, Vinyl Sliding Doors, Sash Windows, Vinyl Windows, and Horizontal Windows. |
Can my small and large dog share this pet door? Yes, but make sure to follow standard Measuring Guidelines. Make sure the size of the door is based off your tallest pet, but installed low enough for your smallest pet. |
Is the Dragon flap for door mounting the same as the wall mount? Yes! The flap and frames are identical, the only difference would be the hardware that is included for installation. |
How much does shipping cost? Shipping is calculated at checkout. |
Warranty
Dragon Pet Doors One Year Warranty
Dragon Pet Doors have a one-year warranty for normal wear & tear and manufacturing defects.
Customer Reviews

Size Chart
- Medium 7 1/16"w x 13 1/16"h
- Large 9 3/8"w x 16 9/16"h
Flap Dimensions:
7 1/16"w x 13 1/16"h
The entry way your dog goes through.Outside Frame Dimensions
11 5/8"w x 20"h
The outer edge of the pet door.


Rough Cut Out:
10 1/4"w x 18 1/2"h
The size of the hole needed to fit your pet door into your door.Flap Dimensions:
9 3/8"w x 16 9/16"h
The entry way your dog goes through.Outside Frame Dimensions
14 1/8"w x 23 1/2"h
The outer edge of the pet door.


Rough Cut Out:
12 1/4"w x 22 1/4"h
The size of the hole needed to fit your pet door into your door.Flap Size | Flap Dimensions | Rough Cut Out | Outside Frame Dimensions | Minimum Step Over | Recommended Pet Height |
---|---|---|---|---|---|
Small | Coming 2023 | Coming 2023 | Coming 2023 | Coming 2023 | Coming 2023 |
Medium | 7 1/16"w x 13 1/16"h | 10 1/4"w x 18 1/2"h | 11 5/8"w x 20"h | 4” | 11" - 17" |
Large | 9 3/8"w x 16 9/16"h | 12 1/4"w x 22 1/4"h | 14 1/8"w x 23 1/2"h | 4” | 11" - 23" |
Find The Best Pet Door Size For My Pet

A
Pet Height: inches
B
Pet Width: inches
Installation Instructions

Parts
- 1 Flap and Frame Assembly
- 4 Long Frame Screws - 2 ¼" long 10-24 machine screws
- 4 Short Frame Screws - 1 ¾" long 10-24 machine screws
- 4 Frame Nuts - serrated flange 10-24 hex nuts
- 4 Frame Washers - steel 9/16" washers
- 1 Locking Cover - rectangular sheet with a hole near the top
Tools
- Phillips screwdriver
- Electric drill
- 5/16” or 3/8“ drill bit
- Jigsaw, painter’s tape
- Pencil
- Flathead screwdriver (optional)
- 3/8” socket or wrench (optional)
- Pliers (optional)
Step 1 Align the Template

- If possible, remove the door from its hinges using a flathead screwdriver and hammer to tap out the hinge pins. Lay the door flat for installation. Tape the installation template to the door where you want to install this face up.
- Place the top edge of this template at least 4" above your pet's shoulders.
- Check that the bottom of the template is at least 1" from the bottom of the door to maintain the door's strength.
- Check the template top edge with a level.
Step 2 Make the Rough Cutout



- Mark the physical outline of this template with a sharp pencil. Remove this template from the door.
- With a 5/16th (8mm) or or 3/8” (9,5 mm) drill bit (5/16” preferred), drill through the corners of the outline with the tip of the bit directly on the outline’s corners.
- Place your jigsaw into the holes and cut along the lines you drew. You should be making a rectangle connecting the center of each of the holes. Cut as straight as possible; aim to not deviate more than 1/8” from the line on either side.
Step 3 Test Fit the Frame Tunnels



- To test fit the frame tunnels (the flanges on the back of the frame), lay the outside frame face down on the floor.
- Fit the inside frame into the outside frame by first placing the bottom of the inside frame’s tunnel into the bottom-left slot of the outside frame’s tunnel.
- Next, place the right side of the inside frame’s tunnel into the top right slot of the outside frame’s tunnel.
- Remove the frames from each other once you are familiar with how they fit together.
Step 4 Align Frame Pieces



- Rehang your door if you took it off its hinges. Place the outside frame over the rough cutout. Do not place the inside frame into the door yet.
- At least one of the outside frame’s four locator posts (small posts extending from the bottom of the frame—three pictured in the image) will rest on the bottom of the cutout.
- Use painter’s tape to temporarily hold the outside frame in the door. Place tape all around the frame, tightly adhering to the door.
- Ensure that the screw holes in the frame are all visible through the cutout opening, looking at the back of the frame.
Step 5 Fit the Frames Together

- Fit the inside frame into the outside frame, same as in Step 3. You may need to hold the outside frame to keep it from being pushed out.
- Press frames together until both are flush with the door. The locator posts of the inside frame will not be in contact with the rough cutout.
- Use painter’s tape to temporarily hold the inside frame in the door.
Step 6 Position the Frames

Step 7 Screw the Frames in Place




- Reach around the door and place a nut into one of the four pockets on the outside frame, pressing it into the floor of the pocket. Hold it there through the next step.
- Place a frame screw (the 2 ¼” or 1 ¾” screws) with a washer into and through the matching pocket on the inside frame. Start turning the frame screw until it begins to thread into the nut.
- Partially tighten down with a #2 Phillips-head screwdriver. Press the nut into the frame as you tighten it to lock the nut in place. The serrations bite so you don’t have to grip the nut directly. Once the tip of the screw comes through the nut you can press on that instead for the same effect.
- Repeat for all four screws, level the frame, then finish tightening each screw.
Step 8 Seal the Frames

- At this point, there should be washers under the screws on the inside frame and nuts on the outside frame at each of the four points.
- Remove any remaining tape.
- If the frame positions need to be adjusted, loosen screws without removing the nut, make the adjustments, and tighten back down.
- Ensure the frames are flush with your door, are level, and are sturdy.
- With a silicone sealant of your choice, we recommend sealing any gaps on the corners of the inside of the frames, as well as anywhere the two frames meet.
FAQ
What's the difference between the single flap and the double flap? The double flap option provides increased insulation against the cold. Both options have magnets on the flap to keep the door sealed in wind. |
I want to get the large pet door for my dog, but I am concerned about a person fitting through it. All Dragon Pet Doors come with a locking cover. This cover can be used to keep you doggy in. It also can be used to keep intruders from entering your home. It slides into the interior frame. |
How do I know what size is best for my dog? When installing the pet door you want it to clear the top of your dog's back by 1-2 inches, minimum. To give your pet the most comfortable pet door possible, make sure the step-over is less than 1/3 of your dog's height. Lastly you want the width of the door to be big enough to allow your pet to go through without touching the sides. Here's a guide on how to measure your pet with tips on how to determine the correct size. |
Are replacement flaps available? Yes, you can buy Dragon replacement flaps. |
Where can I install the Dragon Pet Door? The Dragon Pet Door has multiple Installation options. You can install it in Regular Doors (using these installation instructions), as a Wall mount, Aluminum Sliding Doors, Vinyl Sliding Doors, Sash Windows, Vinyl Windows, and Horizontal Windows. |
Can my small and large dog share this pet door? Yes, but make sure to follow standard Measuring Guidelines. Make sure the size of the door is based off your tallest pet, but installed low enough for your smallest pet. |
Is the Dragon flap for door mounting the same as the wall mount? Yes! The flap and frames are identical, the only difference would be the hardware that is included for installation. |
How much does shipping cost? Shipping is calculated at checkout. |
Warranty
Dragon Pet Doors One Year Warranty
Dragon Pet Doors have a one-year warranty for normal wear & tear and manufacturing defects.
- Reviews
- Questions
Great Door for Low Price
This was a great option for a small budget. It is inexpensive, but has lots of magnets for sealing against rain and cold. We get a few weeks of harsh winter in Oregon, and I believe this door would outperform other brands in the same price range. The door has very mechanical aesthetics and is clearly well-engineered. The frame is slightly off-white and almost pink-ish, but I barely noticed. It came with a clear installation instruction sheet that doubled as a template. The frame feels very sturdy and tough, despite being plastic. Though it isn't installed yet, the magnets keep the flap shut, even when I turn it horizontal, against gravity. Overall, I am happy with it, and feel it's a great door for the price.
Very easy to install.
Nice and air tight. If you have lots of adverse weather or heavy winds this is a good solution.
Magnetic Strip could have been designed better
Overall the door was good and easy to install. This was the first dog door we've done and we didn't have too much difficulty following the instructions and getting it installed. Our only problem with it is that the flap design has slits and the extra magnetic strip around the flap kept coming off. I finally just took it all the way off, which I'm sure reduces the insulation value even though the door itself continues to function normally.
Doggie door works so well
It is very nice and keeps the cold out well. Dogs are getting used to it now
Great door!
Awesome experience. We had it installed by the recommended tech from petdoors.com and it turned out great. Our husky loves to go in and out and we love not opening and closing the door all the time. Seems well built and the insulation is solid. It's also pretty quiet.