Dragon Custom Double Flap Pet Door for Aluminum Sliders
- Economical pet door solution for aluminum sliding glass doors
- Quick, easy installation with customizable height adjustments
- Double flap design for improved insulation and energy efficiency
- Sturdy aluminum frame construction for a perfect fit
- Easily removable for vacation homes or rental properties
- Custom orders are made to your specifications and are non-returnable
- Approximately three weeks to build your custom panel pet door
Product Details
The Custom Double Flap Dragon Pet Door for Aluminum Sliders is a pet door solution designed to seamlessly integrate with your existing aluminum sliding glass door. This pet door provides an economical and convenient way to give your pets the freedom to come and go as they please, without the need for cutting into your door or wall.
The Dragon Pet Door features a sturdy aluminum frame that complements your aluminum sliding glass door, ensuring a perfect fit. The double-flap design offers improved insulation, making it ideal for moderate climates. as it keeps cold air out and warmth in.
Installation is a breeze with the spring-loaded design, allowing you to quickly and easily set up the pet door. The panel is removable in just minutes, making it perfect for temporary or seasonal installations, as well as vacation homes and rental properties.
With custom height adjustment ranges available by special order, the Dragon Pet Door can accommodate sliding doors of various heights. The product also includes a black locking cover to block access when needed, adding an extra layer of security to your home.
The Custom Double Flap Dragon Pet Door for Aluminum Sliders has been praised for its easy installation, durability, and added insulation provided by the double flaps. This patio panel pet door is an excellent investment for pet owners looking to give their furry friends the freedom they deserve while maintaining a comfortable and secure home environment.
Optimize your pet's access to the outdoors while maintaining your home's comfort and security with the Custom Double Flap Dragon Pet Door for Aluminum Sliders.
Don't see your track height? Check out the Double Flap Dragon Pet Door for Aluminum Sliders. Already have a Dragon pet door? See which replacement flap fits your door.
Features:
- High-quality aluminum frame designed to match aluminum sliding glass doors
- Double flap design made from tough polyolefin elastomer for enhanced insulation (single flap available for mild climates)
- Single-pane, tempered glass suitable for moderate climates
- Customizable height adjustment ranges available by special order
- Quick installation with a spring-loaded design and C-Clamp lock for added security (you can install a Charley Bar for additional security; we recommend the one from Prime Lime pet door products)
- Extruded aluminum frame made for sliding glass door tracks at least 1” thick (for vinyl sliding doors, see the Dragon Pet Door for Vinyl Sliders)
- See the monorail adapter page if you have a monorail track
Benefits:
- Allows pets to come and go without cutting your door or wall
- Quick and low-impact installation
- Easily removable, perfect for temporary or seasonal installation
- Ability to upgrade from single flap to double flap using an Additional Dragon Flap
Size Chart
- Small5 3/8"w x 9"h
- Medium 7 1/16"w x 13 1/16"h
- Large 9 3/8"w x 16 9/16"h
Flap Dimensions:
5 3/8"w x 9"h
The entry way your dog goes through.Step Over Range
3"
Distance from the bottom of the flap to the floor you pet must step over to enter the pet door.
Overall Panel Width
12 5/16"
How wide the panel is overall.Flap Dimensions:
7 1/16"w x 13 1/16"h
The entry way your dog goes through.Step Over Range
3”
Distance from the bottom of the flap to the floor you pet must step over to enter the pet door. Overall Panel Width
14 5/8"
How wide the panel is overall.Flap Dimensions:
9 3/8"w x 16 9/16"h
The entry way your dog goes through.Step Over Range
3”
Distance from the bottom of the flap to the floor you pet must step over to enter the pet door. Overall Panel Width
16 1/8"
How wide the panel is overall.| Flap Size | Flap Dimensions | Step Over | Overall Panel Width | Recommended Pet Height* |
|---|---|---|---|---|
| Small | 5 3/8"w x 9"h | 3" | 12 5/16" | 9" - 12" |
| Medium | 7 1/16"w x 13 1/16"h | 3" | 13 5/8" | 11" - 16" |
| Large | 9 3/8"w x 16 9/16"h | 3" | 15 1/4" | 11" - 22" |
Your Track Height Adjustment range is based on the measurement of your door height from the lowest point of your track to the highest point. Choose the range that your track height falls into and when ordered you will be asked to give the exact height of your slider track inside very top to very bottom. In each case you will have 3" of height adjustment with the height you specify approximately in the middle of that range. The ranges are:
- Under 74 3⁄4"
- Between 80 1⁄4" – 93 1⁄4"
- Over 96 1⁄4"
The panels have a 3-inch spring-loaded height adjustment, so if you request a 40" panel, the panel you receive will adjust from 38" to 41" inches.
IMPORTANT SIZING INFORMATION
The Dragon Pet Door’s two-piece flap is designed to tear away for your pet’s safety. If you pet door is not the right size for your pet, they may break off flap during normal use. Follow these sizing tips to help ensure that you are buying the right Dragon Pet Door size:
- Check the Flap Height: You must measure your dog before purchasing a pet door. A large dog may not fit in a “large” pet door. The tallest point of your dog’s back should be at least 1” beneath the top of the flap.
- Check the Step-Over: Your pet should be able to over the bottom of the flap comfortably. If the distance from the floor to the bottom of the pet door (called the stepover) is too high, your dog’s paw may catch in the pet door’s U-gasket. It’s better to have a taller pet door that is lower to the ground than a smaller pet door that is too high up.
- Check Your Entry/Exit Level: The inside of your home may be higher than the ground outside. This means that your door may have different step-over heights depending on whether you are indoors or outdoors. Try to use the lower level when picking your step over height. You can also even of the different levels with a ramp or platform.
- Reinforce Your Flap: Every Dragon Pet Door comes with instructions for how to reinforce the screws keeping your flap in place. If you are worried in any way that your pet may rip off the flap, we recommend preemptively reinforcing your flap. Note that doing so will negate the teat-away safety feature.
If you have any questions about which size pet door your pet needs, please contact our team of pet door experts for guidance and recommendations.
Find The Best Pet Door Size For My Pet
A
Pet Height: inches
B
Pet Width: inches
Installation Instructions
Difficulty
Easy
Steps
04
Time Required
0.5 Hours
Sections
03
Flags
02
Parts
- 1 Panel Pet Door with a Pre-Installed Dragon Pet Door
- 1 Foam Weather Strip Seal
- 1 C-Clamp Lock
- 1 Locking Cover
Tools
- Flathead screwdriver
Please read instructions & notes thoroughly before installation.
One-Piece Panel
Step 1 Adjust the Top Piece
- Loosen the height adjustment locks at the top of the panel. This allows the spring mechanism to move freely up and down.
Step 2 Test-Fit the Panel
- Insert the panel into the top track of your framing, push the panel into the spring mechanism and swing the bottom of the panel up and over the threshold into the rail at the bottom.
- If you can't quite clear the track, try swinging in from the outside as the outside track wall may be shorter.
Step 3 Apply the Weather Stripping
- Once you have confirmed the panel fits, remove the panel from the track and lay it on its side.
- Apply the foam weather-stripping by peeling back the paper and exposing the adhesive. Unroll it along the edge of the panel, pressing to ensure it adheres.
- Use scissors to trim the strip to fit the length of your panel.
- Flip your panel around to apply on the other side.
Step 4 Install the Panel
- Place the panel back into the sliding glass door, then tighten the height adjustment locks to lock it in place. Installation complete!
Difficulty
Easy
Steps
08
Time Required
0.5 Hours
Sections
03
Flags
04
Parts
- 1 Panel Pet Door with a Pre-Installed Dragon Pet Door
- 1 Foam Weather Strip Seal
- 1 C-Clamp Lock
- 1 Locking Cover
- 4 Flathead Screws
- Flathead screwdriver
Tools
- Flathead screwdriver
- Philips-head screwdriver (for sectional)
Please read instructions & notes thoroughly before installation.
Sectional Panel
SECTIONAL ASSEMBLY
Step 1 Loosen the Screws
- With a Phillips-head screwdriver, loosen the top two screws of the Dragon frame to make room for the glass section to fit inside.
Step 2 Connect the Sections
- Slide the flap section into the glass section. Make sure the locking cover is on the same side as the height adjustment locks on the glass section.
- Keep adjusting the flap section until it is fully flush with the glass section.
- Alternatively, pick up the panel and tap it on the ground on a soft surface.
Step 3 Fasten the Sections Together
- Fasten the sections by screwing in two connector screws each into the section connectors on both sides with the provided flat head screwdriver.
- Tighten down all eight connector screws.
Step 4 Secure the Pet Door Frame
- Retighten the two Dragon frame screws until the Dragon frames are flush with the glass section.
- Press the nut into the frame to keep it from rotating.
- Proceed with the regular Dragon panel Instructions below.
Step 5 Adjust the Top Piece
- Loosen the height adjustment locks at the top of the panel. This allows the spring mechanism to move freely up and down.
Step 6 Test-Fit the Panel
- Insert the panel into the top track of your framing, push the panel into the spring mechanism and swing the bottom of the panel up and over the threshold into the rail at the bottom.
- If you can't quite clear the track, try swinging in from the outside as the outside track wall may be shorter.
Step 7 Apply the Weather Stripping
- Once you have confirmed the panel fits, remove the panel from the track and lay it on its side.
- Apply the foam weather-stripping by peeling back the paper and exposing the adhesive. Unroll it along the edge of the panel, pressing to ensure it adheres.
- Use scissors to trim the strip to fit the length of your panel.
- Flip your panel around to apply on the other side.
Step 8 Install the Panel
- Place the panel back into the sliding glass door, then tighten the height adjustment locks to lock it in place. Installation complete!
Dragon Locking Details
Since you cannot lock your sliding glass door to your panel pet door, we have provided you with an alternative locking method to secure your home.
Installing the Clamp Lock
- This clamp has a screw that tightens by hand to prevent the sliding door from moving beyond the clamp’s placement.
- For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the door’s raised track.
Locking the Flap
- The Dragon Pet Door comes with a secure locking cover to block access to the flap when needed.
- The locking cover is a great perfect for keeping pets inside at night, or for blocking access to the flap when you're away.
Alternative Locking Method
- A great alternative to locking your sliding glass door is a Charley bar or dowel in the track.
- Both work off the same concept—they block the slider from opening. When engaged you cannot pull the sliding door away from the pet door panel.
FREQUENTLY ASKED QUESTIONS
What if my panel is slightly too tall?
You can trim up to 3/4” off the spring- loaded adjustment piece at the top. This can be done by removing the adjustment pieces with a #2 Phillips head screwdriver and cutting down the flanges. Be careful not to cut too low or you will not be able to put the top back on.
The dark area marks where you can trim:
What if my panel is slightly too short?
We offer height extensions that will add 3/4” to the top of the panel that you slide into the channel at the top. These are made from the same aluminum as the panel so you can match the color.
You can also make your own extension out of nominal 1” wood (which is 3/4” thick), such as a 1x3, if you need more than 3/4" in height. Cut it to the same width as the panel and slide it into the channel at the top. Paint the wood to match your frame color. If the extension makes the panel feel unstable, you can secure it with screws.
What if the panel is wobbling slightly back and forth?
If your track is wider than 1” you can use small wooden shims or extra weather-stripping to fill in the gap inside the top and bottom tracks. By placing the material inside the tracks you won't be able to see it, but it will stabilize the panel.
FAQ
|
What's the difference between the single flap and the double flap? The double flap dog door for sliding glass door 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, 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 this dog door for sliding glass door good for a rental home? Yes, the Dragon aluminum sliding door panel is an excellent temporary dog door sliding door option. |
|
How thick does my track need to be? To install the Dragon aluminum sliding patio doors, your track needs to be at least 1" thick. Most aluminum sliding doors have a track right around 1" thick. Make sure to measure to ensure the proper fit. |
|
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
- Small5 3/8"w x 9"h
- Medium 7 1/16"w x 13 1/16"h
- Large 9 3/8"w x 16 9/16"h
Flap Dimensions:
5 3/8"w x 9"h
The entry way your dog goes through.Step Over Range
3"
Distance from the bottom of the flap to the floor you pet must step over to enter the pet door. Overall Panel Width
12 5/16"
How wide the panel is overall.Flap Dimensions:
7 1/16"w x 13 1/16"h
The entry way your dog goes through.Step Over Range
3”
Distance from the bottom of the flap to the floor you pet must step over to enter the pet door. Overall Panel Width
14 5/8"
How wide the panel is overall.Flap Dimensions:
9 3/8"w x 16 9/16"h
The entry way your dog goes through.Step Over Range
3”
Distance from the bottom of the flap to the floor you pet must step over to enter the pet door. Overall Panel Width
16 1/8"
How wide the panel is overall.| Flap Size | Flap Dimensions | Step Over | Overall Panel Width | Recommended Pet Height* |
|---|---|---|---|---|
| Small | 5 3/8"w x 9"h | 3" | 12 5/16" | 9" - 12" |
| Medium | 7 1/16"w x 13 1/16"h | 3" | 13 5/8" | 11" - 16" |
| Large | 9 3/8"w x 16 9/16"h | 3" | 15 1/4" | 11" - 22" |
Your Track Height Adjustment range is based on the measurement of your door height from the lowest point of your track to the highest point. Choose the range that your track height falls into and when ordered you will be asked to give the exact height of your slider track inside very top to very bottom. In each case you will have 3" of height adjustment with the height you specify approximately in the middle of that range. The ranges are:
- Under 74 3⁄4"
- Between 80 1⁄4" – 93 1⁄4"
- Over 96 1⁄4"
The panels have a 3-inch spring-loaded height adjustment, so if you request a 40" panel, the panel you receive will adjust from 38" to 41" inches.
IMPORTANT SIZING INFORMATION
The Dragon Pet Door’s two-piece flap is designed to tear away for your pet’s safety. If you pet door is not the right size for your pet, they may break off flap during normal use. Follow these sizing tips to help ensure that you are buying the right Dragon Pet Door size:
- Check the Flap Height: You must measure your dog before purchasing a pet door. A large dog may not fit in a “large” pet door. The tallest point of your dog’s back should be at least 1” beneath the top of the flap.
- Check the Step-Over: Your pet should be able to over the bottom of the flap comfortably. If the distance from the floor to the bottom of the pet door (called the stepover) is too high, your dog’s paw may catch in the pet door’s U-gasket. It’s better to have a taller pet door that is lower to the ground than a smaller pet door that is too high up.
- Check Your Entry/Exit Level: The inside of your home may be higher than the ground outside. This means that your door may have different step-over heights depending on whether you are indoors or outdoors. Try to use the lower level when picking your step over height. You can also even of the different levels with a ramp or platform.
- Reinforce Your Flap: Every Dragon Pet Door comes with instructions for how to reinforce the screws keeping your flap in place. If you are worried in any way that your pet may rip off the flap, we recommend preemptively reinforcing your flap. Note that doing so will negate the teat-away safety feature.
If you have any questions about which size pet door your pet needs, please contact our team of pet door experts for guidance and recommendations.
Find The Best Pet Door Size For My Pet
A
Pet Height: inches
B
Pet Width: inches
Installation Instructions
Difficulty
Easy
Steps
04
Time Required
0.5 Hours
Sections
03
Flags
02
Parts
- 1 Panel Pet Door with a Pre-Installed Dragon Pet Door
- 1 Foam Weather Strip Seal
- 1 C-Clamp Lock
- 1 Locking Cover
Tools
- Flathead screwdriver
Please read instructions & notes thoroughly before installation.
One-Piece Panel
Step 1 Adjust the Top Piece
- Loosen the height adjustment locks at the top of the panel. This allows the spring mechanism to move freely up and down.
Step 2 Test-Fit the Panel
- Insert the panel into the top track of your framing, push the panel into the spring mechanism and swing the bottom of the panel up and over the threshold into the rail at the bottom.
- If you can't quite clear the track, try swinging in from the outside as the outside track wall may be shorter.
Step 3 Apply the Weather Stripping
- Once you have confirmed the panel fits, remove the panel from the track and lay it on its side.
- Apply the foam weather-stripping by peeling back the paper and exposing the adhesive. Unroll it along the edge of the panel, pressing to ensure it adheres.
- Use scissors to trim the strip to fit the length of your panel.
- Flip your panel around to apply on the other side.
Step 4 Install the Panel
- Place the panel back into the sliding glass door, then tighten the height adjustment locks to lock it in place. Installation complete!
Difficulty
Easy
Steps
08
Time Required
0.5 Hours
Sections
03
Flags
04
Parts
- 1 Panel Pet Door with a Pre-Installed Dragon Pet Door
- 1 Foam Weather Strip Seal
- 1 C-Clamp Lock
- 1 Locking Cover
- 4 Flathead Screws
- Flathead screwdriver
Tools
- Flathead screwdriver
- Philips-head screwdriver (for sectional)
Please read instructions & notes thoroughly before installation.
Sectional Panel
SECTIONAL ASSEMBLY
Step 1 Loosen the Screws
- With a Phillips-head screwdriver, loosen the top two screws of the Dragon frame to make room for the glass section to fit inside.
Step 2 Connect the Sections
- Slide the flap section into the glass section. Make sure the locking cover is on the same side as the height adjustment locks on the glass section.
- Keep adjusting the flap section until it is fully flush with the glass section.
- Alternatively, pick up the panel and tap it on the ground on a soft surface.
Step 3 Fasten the Sections Together
- Fasten the sections by screwing in two connector screws each into the section connectors on both sides with the provided flat head screwdriver.
- Tighten down all eight connector screws.
Step 4 Secure the Pet Door Frame
- Retighten the two Dragon frame screws until the Dragon frames are flush with the glass section.
- Press the nut into the frame to keep it from rotating.
- Proceed with the regular Dragon panel Instructions below.
Step 5 Adjust the Top Piece
- Loosen the height adjustment locks at the top of the panel. This allows the spring mechanism to move freely up and down.
Step 6 Test-Fit the Panel
- Insert the panel into the top track of your framing, push the panel into the spring mechanism and swing the bottom of the panel up and over the threshold into the rail at the bottom.
- If you can't quite clear the track, try swinging in from the outside as the outside track wall may be shorter.
Step 7 Apply the Weather Stripping
- Once you have confirmed the panel fits, remove the panel from the track and lay it on its side.
- Apply the foam weather-stripping by peeling back the paper and exposing the adhesive. Unroll it along the edge of the panel, pressing to ensure it adheres.
- Use scissors to trim the strip to fit the length of your panel.
- Flip your panel around to apply on the other side.
Step 8 Install the Panel
- Place the panel back into the sliding glass door, then tighten the height adjustment locks to lock it in place. Installation complete!
Dragon Locking Details
Since you cannot lock your sliding glass door to your panel pet door, we have provided you with an alternative locking method to secure your home.
Installing the Clamp Lock
- This clamp has a screw that tightens by hand to prevent the sliding door from moving beyond the clamp’s placement.
- For doors manufactured with the glass slider on the inside track, the lock can usually be installed on the door’s raised track.
Locking the Flap
- The Dragon Pet Door comes with a secure locking cover to block access to the flap when needed.
- The locking cover is a great perfect for keeping pets inside at night, or for blocking access to the flap when you're away.
Alternative Locking Method
- A great alternative to locking your sliding glass door is a Charley bar or dowel in the track.
- Both work off the same concept—they block the slider from opening. When engaged you cannot pull the sliding door away from the pet door panel.
FREQUENTLY ASKED QUESTIONS
What if my panel is slightly too tall?
You can trim up to 3/4” off the spring- loaded adjustment piece at the top. This can be done by removing the adjustment pieces with a #2 Phillips head screwdriver and cutting down the flanges. Be careful not to cut too low or you will not be able to put the top back on.
The dark area marks where you can trim:
What if my panel is slightly too short?
We offer height extensions that will add 3/4” to the top of the panel that you slide into the channel at the top. These are made from the same aluminum as the panel so you can match the color.
You can also make your own extension out of nominal 1” wood (which is 3/4” thick), such as a 1x3, if you need more than 3/4" in height. Cut it to the same width as the panel and slide it into the channel at the top. Paint the wood to match your frame color. If the extension makes the panel feel unstable, you can secure it with screws.
What if the panel is wobbling slightly back and forth?
If your track is wider than 1” you can use small wooden shims or extra weather-stripping to fill in the gap inside the top and bottom tracks. By placing the material inside the tracks you won't be able to see it, but it will stabilize the panel.
FAQ
|
What's the difference between the single flap and the double flap? The double flap dog door for sliding glass door 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, 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 this dog door for sliding glass door good for a rental home? Yes, the Dragon aluminum sliding door panel is an excellent temporary dog door sliding door option. |
|
How thick does my track need to be? To install the Dragon aluminum sliding patio doors, your track needs to be at least 1" thick. Most aluminum sliding doors have a track right around 1" thick. Make sure to measure to ensure the proper fit. |
|
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.
