Flap Dimensions:
6"w x 11"h
The entry way your dog goes through.Overall Panel Width
10 3/16"
How wide your panel is.
Step-Over Height
3" - 4 1/2"
The distance from the bottom of the panel to the bottom of your flap.Free U.S. Shipping & Lifetime Warranty For All Endura Flap Pet Doors
Insulated Access for Sliding Doors
Fast & Free Shipping in the USA.
Satisfaction Guarantee -
What's in the box?
Can an intruder remove a dog door for sliding glass doors from the outside?
Can I install it myself?
Can you lock the pet door?
Explore all questionsWe have a 90-day return policy, which means you have 90 days after receiving your item to request a return.
To be eligible for a return, your item must be in new, resellable condition. Pet doors that have been installed are not eligible for return. Custom orders are final sale and not eligible for return.
To start a return, you can contact us at customerservice@enduraflap.com. Please note that returns will need to be sent to the following address: 254 Granada Drive, San Luis Obispo CA 93401
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at customerservice@enduraflap.com.
Damages and issues
Please inspect your order upon reception and contact us within 7 business days if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Custom products are final sale and not eligible for return.
Exchanges
We do not offer exchanges. The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it. You’ll also need the receipt or proof of purchase.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at customerservice@enduraflap.com.
After 90 Day Rules for Endura Flap Products:
Time frames begin the day that you receive your order.
Do you charge shipping for returns? We will send you a label for all returns in the US, but the return label is not free and is charged to your account. We do not refund any of the original shipping charges initially paid on the order.
If you are not satisfied with your purchase for any reason, and need to return pet door products please email customerservice@enduraflap.com or call (800) 826-2871 to submit a return request for a Return Merchandise Authorization (RMA) number within 90 days of receipt. To receive a refund of the merchandise cost the return item must be in original, resalable condition within 90 days of receipt for a full refund on the product cost.
When shipping returns back please make sure to package them properly to prevent damage. The provided return label will have the proper return address on it. All refunds will amount to the cost of the item, including taxes if applicable. We do not refund paid shipping. We process returns daily with the exception of weekends and holidays.
Product Details
This panel is designed for homeowners who want better insulation and pet access without changing their existing sliding door. Once installed, it works alongside the door to create a dedicated entry point while maintaining a clean, integrated look.
Insulation That Goes Beyond
Single Pane The dual-pane Low-E glass helps reduce heat transfer and limit solar gain, creating a more stable indoor environment compared to standard single-pane inserts. Paired with the Endura Flap, the panel supports a more controlled barrier between inside and out.
The Endura Flap remains flexible in extreme cold while maintaining its shape in heat. Magnets along three sides help the flap return to a closed position after each use, supporting a consistent seal that resists wind pressure and helps prevent unwanted airflow.
A Secure, Drill-Free Fit
The aluminum frame is designed to fit securely within most sliding door tracks while maintaining a slim profile. Adjustable height locks compress the panel into place, creating a stable installation without the need to drill into the door frame.
When the sliding door’s original latch can no longer engage, the included Slide Lock provides a dedicated solution. Mounted to the frame, it creates a secure stop point that helps prevent the door from being opened from the outside.
Panels are available in multiple standard height ranges and can be custom built for uncommon track sizes. Larger configurations ship in sections for easier handling and assemble with included hardware before installation.
Designed for Everyday Use
With controlled pet access, durable materials, and thoughtful integration into your existing door, this panel offers a balanced solution for convenience, comfort, and security in daily life.
6"w x 11"h
The entry way your dog goes through.10 3/16"
How wide your panel is.
3" - 4 1/2"
The distance from the bottom of the panel to the bottom of your flap.8"w x 15"h
The entry way your dog goes through.12 1/4"
How wide your panel is.
3" - 4 1/2"
The distance from the bottom of the panel to the bottom of your flap.10"w x 19"h
The entry way your dog goes through.14 1/4"
How wide your panel is.
3" - 6"
The distance from the bottom of the panel to the bottom of your flap.12"w x 23"h
The entry way your dog goes through.16 3/8”
How wide your panel is.
3" - 6"
The distance from the bottom of the panel to the bottom of your flap.14"w x 27"h
The entry way your dog goes through.18-3/8"
How wide your panel is.
3" - 7.5"
The distance from the bottom of the panel to the bottom of your flap.| Flap Size | Flap Dimension | Step Over Range | Overall Panel Width | Recommended Pet Height |
|---|---|---|---|---|
| Small | 6" w x 11" h | 3" - 4-1/2" (ships at 3") | 10-3/16" | 9" - 15" |
| Medium | 8" w x 15" h | 3" - 4-1/2" (ships at 3") | 12-1/4" | 9" - 21" |
| Large | 10" w x 19" h | 3" - 6" (ships at 4.5") | 14-1/4" | 9" - 27" |
| Extra Large | 12" w x 23" h | 3" - 6" (ships at 4.5") | 16-3/8" | 9" - 34" |
| XX Large | 14" w x 27" h | 3" - 7.5" (ships at 6") | 18-3/8" | 9" - 41" |
Note: Endura Flap is not recommended for kittens or very small dogs.
| Custom Height Minimum & Maximum Heights | ||
|---|---|---|
| Model | Minimum | Maximum |
| Small | 35" | 100" |
| Medium | 42" | 107" |
| Large | 48" | 117" |
| Extra Large | 46" | 123" |
Custom orders are final sale once built. They are essential in two situations:
While most sliding glass door track heights are in the three standard height ranges offered, some are not. In those cases, we can build a Thermo Panel 3e in a custom height to fit your specific dimension.
The second situation is when you have a side-sliding window. A sliding window is essentially a miniature sliding glass door, and you can install a custom height panel, provided the window track is at least 1" wide.
Please read instructions & notes thoroughly before installation.
Please read instructions & notes thoroughly before installation.