- Regular price
- $679.99
- Sale price
- $679.99
- Unit price
- per
- Designed for vinyl sliding glass doors in severe weather climates
- Insulated dual-flap system remains flexible in -40°F to 110°F temperatures
- 1/2" clear, insulated, dual pane Low E safety glass for max energy efficiency
- Semi-permanent installation compatible with 1.5" thick 'U' shaped tracks
- Available in various sizes for cats and dogs up to X-Large




Product Details
-
Severe weather solution: The Endura Flap Severe Weather Vinyl Sliding Glass Dog Door is perfect for extreme climates, protecting your home from the elements
- Insulated dual-flap system: Two flaps offer enhanced insulation, maintaining flexibility in temperatures ranging from -40°F to 110°F
- Energy-efficient glass: Dual pane, Low-E safety glass minimizes UV rays and infrared light, ensuring energy efficiency and comfortable indoor temperatures
- Compatibility: Designed for vinyl sliding glass doors with 1.5" thick 'U' shaped tracks, making it suitable for various door configurations (will not work with monorail tracks)
- Various sizes available: Accommodates pets of all sizes, from cats and small dogs to extra-large dogs, providing convenience and freedom for your furry friend
- Secure locking cover: Included locking cover and slide lock allow you to secure the pet door when necessary for added safety
- Easy semi-permanent installation: The spring-loaded design makes it ideal for rentals and vacation homes without permanent alterations
- Aesthetically pleasing: The white vinyl frame seamlessly integrates with your existing sliding glass door for a cohesive look
- Low-maintenance flap: UV-resistant flap material won't warp or yellow in the sun, ensuring long-lasting durability and performance
- Wind resistance: Flap lined with magnets on all sides, able to stay shut in winds up to 50 mph, providing additional protection against the elements
- Customizable height: 5/16" can be trimmed off the top of the pet door panel if a slightly shorter height is needed
- Easy-to-follow instructions: Comprehensive installation instruction booklet included for a hassle-free setup experience
- Invest in quality: Although a premium investment, this American-made dog door offers lasting durability and improved insulation compared to standard alternatives
Need help installing? Check out our Vinyl Sliding Glass Door Installation page.
Size Chart
- Small 6"w x 10"h
- Medium 8"w x 14"h
- Large 10" w x 18" h
- Extra Large 12" w x 22" h
Flap Dimensions:
6"w x 10"h
The entry way your dog goes through.Overall Panel Width
11 7/8"
How wide your panel is.


Step-Over Height
3 7/8"
The distance from the bottom of the panel to the bottom of your flap.Flap Dimensions:
8"w x 14"h
The entry way your dog goes through.Overall Panel Width
13 15/16"
How wide your panel is.


Step-Over Height
3 7/8"
The distance from the bottom of the panel to the bottom of your flap.Flap Dimensions:
10" w x 18" h
The entry way your dog goes through.Overall Panel Width
15 7/8"
How wide your panel is.


Step-Over Height
7 1/4"
The distance from the bottom of the panel to the bottom of your flap.Flap Dimensions:
12" w x 22" h
The entry way your dog goes through.Overall Panel Width
18"
How wide your panel is.


Step-Over Height
7 1/4"
The distance from the bottom of the panel to the bottom of your flap.Flap Size | Flap Dimension | Step Over Height | Overall Panel Width | Recommended Pet Height |
---|---|---|---|---|
Small | 6" w x 10" h | 3 7/8" | 11 7/8" | 8" - 14" |
Medium | 8" w x 14" h | 3 7/8" | 13 15/16" | 8" - 21" |
Large | 10" w x 18" h | 7 1/4" | 15 7/8" | 8" - 31" |
Extra Large | 12" w x 22" h | 7 1/4" | 18" | 8" - 36" |
Height Options:
- Short: 74 ¾" - 77 ¾"
- Regular: 77 ¼" - 80 ¼"
- Tall: 93 1⁄4" – 96 1⁄4" (additional cost)
Step-Over is non-adjustable for all vinyl Endura Flap panels. If your measured track height is near the bottom of the adjustment range then you should review a Track Measuring Guide.
Find The Best Pet Door Size For My Pet

A
Pet Height: inches
B
Pet Width: inches
Installation Instructions
Click to view the Single Flap Vinyl Sliding Glass Pet Door Instructions.
Parts
- 1 Vinyl Panel Pet Door
- 1 Weatherstrip Seal Roll
- 1 Center Post Weather Seal Draft Stopper
- 1 Sliding Door C-Clamp Lock
Tools
- Flathead screwdriver
Please read instructions & notes thoroughly before installation.
Step 1 Loosen Height Adjustment Locks

- Loosen the height adjustment locks at the top of the panel. This allows the spring mechanism to move freely up and down.
Step 2 Insert Panel Into Track

- Insert the panel into the upper track of your door frame, push the panel into the spring mechanism, then swing the bottom of the panel up and over the threshold into the lower track rail.
Step 3 Apply Weatherstrip



- Once you're sure the panel fits, remove it from the frame and lay it on its side on the ground.
- For foam weatherstripping: Peel the backing off the foam weatherstripping. Press it along both edges of the panel, trimming as needed with scissors to ensure a snug fit.
- For rubber weatherstripping: Clean the edge of your sliding door or window with rubbing alcohol to help the weatherstripping stick properly. Starting at the top or bottom, peel and press the strip into place with the folded edge facing indoors—align angled cuts if you have two pieces. For best results, apply the seal to the sliding door or window, but it can go on the pet door panel if needed.
Step 4 Place Panel In Track

- Place the panel back into the sliding glass door, then tighten the height adjustment locks to lock it in place.
Step 5 Install the Draft Stopper



- The center post weather seal strip (draft stopper) should be installed on the inside of the home.
- Trim with scissors as needed. Clean the edge of your patio door with rubbing alcohol before installing to assure a good seal.
- Repeat step two to install the panel in your track.
Lock Details

Since you cannot lock your sliding door to your panel pet door, we have provided you with alternative locking methods to secure your home:
Installing the sliding door clamp: 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.
If you aren't able to use the lock that comes with the panel: 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.

Variable Magnetic Resistance
Other Installation Options
Stationary Panel:
Some stationary sliding door panels can be unfastened and moved over to one side so that you can install the pet door panel between the jamb and stationary panel.
Avoid damaging your sliding glass door by checking that your door can move and that you can reinstall it properly before trying to uninstall the unit.
You will still lose space in your slider to move through, however, you will be able to use your existing sliding door lock to secure your home. Installing your pet door this way is also great in that you already have an alarm system in place.
If your sliding glass door slides on the outside track, using an alternative lock might not be possible, so this allows you to still lock your door.
NOTE: You can do the stationary panel install with the regular spring actuator method--no need to screw it in.
Troubleshooting Your Installation
What if my panel is slightly too tall?

You can trim up to 5/16" off the spring-loaded adjustment piece at the top. Remove the adjustment piece with a Philips-head screwdriver and use scissors or shears to cut down the flanges. Be careful not to cut too low.

What if hardware for the locking latch is preventing the door from sealing properly?
You may be able to remove the hardware, as it is sometimes secured with just a few screws.
If removal isn't possible, try installing the panel on the stationary side, as described here.
If neither option works, you can shim the panel to align it with the lock face. Depending on how far it protrudes, consider using thicker foam weatherstripping or a small wood spacer between the panel and the wall jamb.
My slider isn't closing evenly against the panel?
If your slider isn't level—a common issue in older homes—you may be able to adjust the wheels to realign it. Most doors have an adjustment screw near the bottom that allows you to raise or lower the wheels slightly.

If the slider is level but still misaligned, the issue could be with the metal height adjustment lock at the top of the panel. In some cases, you can use a rubber mallet to straighten out any slight curves.
If the height adjustment lock is hitting the edge, it may indicate that the bottom of the panel is seating deeper into the jamb than the top, creating a widening gap as you move downward. To correct this, use wood shims or weatherstripping in the jamb to push the bottom of the panel outward.
What if the panel is wobbling slightly back and forth?
If your track is wider than 1 1/2" you can use small wooden shims or extra weatherstripping 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. You might also try semi-permanently installing the pet door.
The slider is on the outside track? How do I lock it?
If you're trying to lock the door, this can be an issue since a clamp lock, Charley bar, or dowel in the track may not work effectively. In this case, a foot lock is a good alternative, though it requires drilling into the front end of the stationary panel frame and a small hole in the sliding door frame.
Depending on your slider's handle design, you might be able to position a Charley bar between the handle and the edge of the stationary panel. This would allow the slider to press against the pet door, preventing it from being opened.
Alternatively, consider installing the pet door between the stationary glass and the wall for added security.
My pet is having difficulty with the large step-down going out or coming in.
In this case, you can use a ramp or small steps to reduce the height of the drop. Ensure that the distance between the top of the flap and the ground is enough for your pet to pass through comfortably without ducking or brushing against their back.
What if I have an alarm system?
The alarm company might be able to come out and move the sensor for you. So instead of one part being on the door and the other on the jamb, you would end up having one side on the panel that matched up with the one on the sliding door.
As there are many different types of alarm configurations we would recommend that you always consult the alarm security company first to discuss your options.
Videos
Installation Video
How to Measure Your Door for a Sliding Glass Pet Door
How to Adjust the Magnet Strength of Your Endura Flap
The Leaf Blower Test
Endura Flap Dog Doors Durability
FAQ
Warranty
Endura Flap products have a lifetime warranty against defects in materials and workmanship under standard regular use. Endura Flap® Pet Doors Are 100% Designed, Engineered, and Manufactured in the USA. They are handmade for quality work in San Luis Obispo, California.
We will replace any defective parts at no cost to you. Defective parts may include incorrectly sized flaps, bent or dented frames, or improperly fitted parts.
Customers living outside of the continental United States are responsible for shipping costs as well as duties and taxes (if applicable) for any replacement parts or services covered under the warranty policy regardless of the replacement part or service's original cost.
Important Note:
- Endura Flap® pet doors have a lifetime warranty for normal wear & tear and manufacturing defects (dog-chewing is not covered).
- Damage caused by not using the product as intended, improper installation, and chewing is not covered under this warranty.
- Endura Flap Pet Doors used in a commercial application like a Kennel or Boarding facility have a three year warranty.