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Dragon Pet Door for Aluminum Sliders Double Flap

Dragon Pet Door for Aluminum Sliders Double Flap

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$269.99
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$269.99
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Black

  • Economical sliding door panel with built-in pet door
  • Sturdy aluminum framing to match your existing door frame
  • Efficient two-piece flap design for improved insulation
  • Double flap for maximum energy efficiency (also available in single flap)
  • Quick, tool-free installation in aluminum-frame sliding doors
  • Panel comes in black or white to match your home
  • Potential 7-10 Business Days Delay in shipping 

Product Details


The Dragon patio panel pet door for aluminum sliding glass doors is made to complement your existing sliding door frame. This removable panel with a built-in Dragon pet door is an economically friendly solution for installing a pet door in a sliding glass door. With a spring-loaded design, the Dragon aluminum patio panel installs tools-free. You can remove the panel in a matter of minutes, making it the ideal choice for vacation homes and rental properties. There are other installation types for the Dragon Pet Door. Already have a Dragon pet door? See which replacement flap fits your door.

Features:

  • High-quality aluminum frame to match your sliding door
  • Single-pane, tempered glass ideal for moderate climates
  • Double flap maximizes insulation value 
  • Includes foam weatherstripping to keep your home insulated
  • Installs tools-free with spring-loaded design
  • Available in three track height adjustment ranges to fit most sliding door sizes
  • Includes a C-Clamp lock to hold the panel in place (you can install a Charley Bar for additional security)
  • 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)
  • Comes with a sturdy, black locking cover to block access when needed

Benefits:

  • Allows pets to come and go without cutting your door or wall
  • Quick, tools-free and low-impact installation
  • Easily removable, perfect for temporary or seasonal installation

Find The Best Pet Door Size For My Pet

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Flap Size Flap Dimensions Step Over Overall Panel Width Recommended Pet Height*
SmallComing 2023Coming 2023Coming 2023Coming 2023
Medium7 1/16"w x 13 1/16"h3 7/8"13 5/8"12" - 16"
Large9 3/8"w x 16 9/16"h3 15/16"15 1/8"12" - 19"
Extra LargeComing 2022Coming 2022Coming 2022Coming 2022

*measured from the ground to the tallest point of their back.

Dimension Definitions:

Flap Dimension DefinitionPanel Dimension Definition

Do not know which size to get? Here is a measurement guide to help you out.

Wondering how to measure your track? Review our Track Measuring Guide.

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.Each Dragon patio panel has a 3" adjustment range with your window track height approximately in the middle.

CAUTION: If your measured track height is near the bottom of the adjustment range then you should review A Note of Caution.

Installation Instructions

Installation icon Difficulty Easy
Installation icon Steps 04
Installation icon Time Required 0.5 Hours
Installation icon Sections 03
Installation icon 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

  • None

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.
  • Watch out, it might jump at you the first time!

Step 2 Test-Fit the Panel

insert panel into track
  • Do not install the weatherstripping before test-fitting 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.
  • If the panel still doesn’t fit, see the FAQ for guidance.

Step 3 Apply the Weather Stripping

apply weatherstripping
  • 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

insert panel into track
insert panel track
twist thumbscrews
  • Place the panel back into the sliding glass door, then tighten the height adjustment locks to lock it in place. Installation complete!
Installation icon Difficulty Easy
Installation icon Steps 08
Installation icon Time Required 0.5 Hours
Installation icon Sections 03
Installation icon 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

  • Philips-head screwdriver (for sectional)

Please read instructions & notes thoroughly before installation.

Sectional Panel

SECTIONAL ASSEMBLY

Step 1 Loosen the Screws

diagram of dragon 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.
  • No need to fully remove them!

Step 2 Connect the Sections

how to connect 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.
  • The section connectors will keep the two sections aligned.
  • Keep adjusting the flap section until it is fully flush with the glass section.
  • If you have a rubber mallet you can use it to tap them together.
  • Alternatively, pick up the panel and tap it on the ground on a soft surface.

Step 3 Fasten the Sections Together

how to fasten 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

where to screw in door
  • 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.
  • Make sure not to overtighten.
  • Proceed with the regular Dragon panel Instructions below.

Step 5 Adjust the Top Piece

how to adjust top piece
  • Loosen the height adjustment locks at the top of the panel. This allows the spring mechanism to move freely up and down.
  • Watch out, it might jump at you the first time!

Step 6 Test-Fit the Panel

how to insert panel
  • Do not install the weatherstripping before test-fitting 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.
  • If the panel still doesn’t fit, see the FAQ for guidance.

Step 7 Apply the Weather Stripping

apply 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

insert panel
insert panel
turn screws
  • 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.
install sliding door clamp

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.
charley lock in door

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.

spring loaded adjustment piece

The dark area marks where you can trim:

where to trim adjustment piece

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.

height extension on door panel

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 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.

Warranty

Dragon Pet Doors One Year Warranty

Dragon Pet Doors have a one-year warranty for normal wear & tear and manufacturing defects.



Customer Reviews

Customer Reviews
4.6 Based on 17 Reviews
5 ★
59% 
10
4 ★
41% 
7
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
0
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
DC
07/17/2021
Dwight C.
United States United States

Great door, terrific problem solver.

Super easy, quick and works so well.

V
05/16/2021
Valerie

Great!!

My dog didn’t get it right away, but about a week later she is a pro! Love this! The double flap help a lot to keep the cold air out. I would recommend buying a heavier duty weatherproofing strip. The one they give is ok, but the 1 1/2 inch really did the trick.

E
05/07/2021
Ellen

Looks goid

This is a well made cat door and easy to install.

GC
04/23/2021
Gailee C.

Durability

Great product. Easy to install and my 52 lb BorderCollie can come in and out as he pleases.

CA
04/08/2021
Claire A.

Esay installation

I like this dog door because it requires no tools or assembly. The top is spring loaded and fits into your existing sliding glass door. I bought the Medium size. All 3 of my small, 10 lb dogs found it easy to use. If you need a larger size, the manufacturer says they are working on creating one but it is not available yet as of early 2021. This dog door comes with a double flap. My dogs did not like the double flap, so I removed the extra flap easily with a screw driver.

Dragon Pet Door for Aluminum Sliders Double Flap

White / Medium / 74.75" - 77.75" Edit

White Dragon aluminum sliding panel double flap front view

Find The Best Pet Door Size For My Pet

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Size Chart

Flap Size Flap Dimensions Step Over Overall Panel Width Recommended Pet Height*
SmallComing 2023Coming 2023Coming 2023Coming 2023
Medium7 1/16"w x 13 1/16"h3 7/8"13 5/8"12" - 16"
Large9 3/8"w x 16 9/16"h3 15/16"15 1/8"12" - 19"
Extra LargeComing 2022Coming 2022Coming 2022Coming 2022

*measured from the ground to the tallest point of their back.

Dimension Definitions:

Flap Dimension DefinitionPanel Dimension Definition

Do not know which size to get? Here is a measurement guide to help you out.

Wondering how to measure your track? Review our Track Measuring Guide.

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.Each Dragon patio panel has a 3" adjustment range with your window track height approximately in the middle.

CAUTION: If your measured track height is near the bottom of the adjustment range then you should review A Note of Caution.

Installation Instructions

Installation icon Difficulty Easy
Installation icon Steps 04
Installation icon Time Required 0.5 Hours
Installation icon Sections 03
Installation icon 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

  • None

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.
  • Watch out, it might jump at you the first time!

Step 2 Test-Fit the Panel

insert panel into track
  • Do not install the weatherstripping before test-fitting 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.
  • If the panel still doesn’t fit, see the FAQ for guidance.

Step 3 Apply the Weather Stripping

apply weatherstripping
  • 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

insert panel into track
insert panel track
twist thumbscrews
  • Place the panel back into the sliding glass door, then tighten the height adjustment locks to lock it in place. Installation complete!
Installation icon Difficulty Easy
Installation icon Steps 08
Installation icon Time Required 0.5 Hours
Installation icon Sections 03
Installation icon 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

  • Philips-head screwdriver (for sectional)

Please read instructions & notes thoroughly before installation.

Sectional Panel

SECTIONAL ASSEMBLY

Step 1 Loosen the Screws

diagram of dragon 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.
  • No need to fully remove them!

Step 2 Connect the Sections

how to connect 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.
  • The section connectors will keep the two sections aligned.
  • Keep adjusting the flap section until it is fully flush with the glass section.
  • If you have a rubber mallet you can use it to tap them together.
  • Alternatively, pick up the panel and tap it on the ground on a soft surface.

Step 3 Fasten the Sections Together

how to fasten 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

where to screw in door
  • 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.
  • Make sure not to overtighten.
  • Proceed with the regular Dragon panel Instructions below.

Step 5 Adjust the Top Piece

how to adjust top piece
  • Loosen the height adjustment locks at the top of the panel. This allows the spring mechanism to move freely up and down.
  • Watch out, it might jump at you the first time!

Step 6 Test-Fit the Panel

how to insert panel
  • Do not install the weatherstripping before test-fitting 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.
  • If the panel still doesn’t fit, see the FAQ for guidance.

Step 7 Apply the Weather Stripping

apply 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

insert panel
insert panel
turn screws
  • 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.
install sliding door clamp

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.
charley lock in door

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.

spring loaded adjustment piece

The dark area marks where you can trim:

where to trim adjustment piece

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.

height extension on door panel

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 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.

Warranty

Dragon Pet Doors One Year Warranty

Dragon Pet Doors have a one-year warranty for normal wear & tear and manufacturing defects.

Customer Reviews
4.6 Based on 17 Reviews
5 ★
59% 
10
4 ★
41% 
7
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
0
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
DC
07/17/2021
Dwight C.
United States United States

Great door, terrific problem solver.

Super easy, quick and works so well.

V
05/16/2021
Valerie

Great!!

My dog didn’t get it right away, but about a week later she is a pro! Love this! The double flap help a lot to keep the cold air out. I would recommend buying a heavier duty weatherproofing strip. The one they give is ok, but the 1 1/2 inch really did the trick.

E
05/07/2021
Ellen

Looks goid

This is a well made cat door and easy to install.

GC
04/23/2021
Gailee C.

Durability

Great product. Easy to install and my 52 lb BorderCollie can come in and out as he pleases.

CA
04/08/2021
Claire A.

Esay installation

I like this dog door because it requires no tools or assembly. The top is spring loaded and fits into your existing sliding glass door. I bought the Medium size. All 3 of my small, 10 lb dogs found it easy to use. If you need a larger size, the manufacturer says they are working on creating one but it is not available yet as of early 2021. This dog door comes with a double flap. My dogs did not like the double flap, so I removed the extra flap easily with a screw driver.