• Redesigned Endura Flap pet door for doors 1/2" up to 1-1/8" thick
  • Durable aluminum frame with a sleek design
  • Maximum insulation: magnetic sealing on three flap sides
  • Flap withstands 50 mph winds and remains flexible down to -40°F
  • Lifetime Warranty and Easy 90-Day Returns 

Endura Flap Single Flap Pet Door For Thin Doors

Built for Thin Doors, Sheds, and Panels

Made in the USA USA flag icon
Regular price $279.99

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Lifetime Warranty

Color: White
Flap Size


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Engineered specifically for thin panel and storm doors, this narrow-profile aluminum frame clamps flush without awkward overhangs while the weather-resistant Endura Flap provides 50 mph wind resistance and adjustable magnetic draft protection.

This Door Mount model is designed specifically for doors where standard pet doors are too deep to fit properly. It provides a clean, stable installation in thinner door panels, making it a practical solution for interior doors, garage doors, and other narrow constructions.

Magnets along three sides of the flap help it return to a closed position after each use, creating a more consistent barrier against wind and outside air. This added control helps maintain a more comfortable environment near the door, even in changing weather conditions.

The flap is constructed from a polyolefin-based polymer that stays responsive across a wide range of temperatures. It remains flexible in cold conditions and resists deformation in heat, allowing pets to move through easily while maintaining proper closure.

The aluminum frame provides a durable structure that holds up over time, even with frequent use from active pets. The taller, narrower flap shape supports a variety of pet sizes while maintaining a balanced, functional design.

A locking cover is included to secure the opening when the door is not in use. The construction provides a more substantial barrier, giving added control over when and how the pet door is used.

Magnet strength can be adjusted to better match your pet and environment. This allows for an easier push-through for more hesitant pets while still maintaining a reliable seal when conditions require it.

Made in the USA and backed by a lifetime warranty, this pet door is built for consistent performance and everyday reliability in homes that require a thinner door solution.

Installation & Fit

  • Self-framing narrow-profile aluminum frame clamps securely through thin interior, exterior, hollow-core, storm, or metal doors with thicknesses between 1/2" and 1-1/8".
  • Requires a precise door panel cutout using the included installation template to match the frame profile.
  • Dual-frame clamping mechanism fastens interior and exterior frame halves flush against thin panel surfaces without awkward frame overhangs.
  • Patented dual-layer flexible flap features 3-sided adjustable magnetic closures to customize seal strength for easy pass-through.
  • Includes a heavy-duty slide-in locking cover that secures into interior frame channels to completely restrict pet access.
  • Standard DIY door installation completed using basic tools (drill, jigsaw, tape measure, screwdriver) in approximately 30 to 60 minutes.

Best Suited For

Ideal for:

  • Narrow interior doors, hollow-core doors, storm doors, and thin panels with a thickness between 1/2" and 1-1/8".
  • Homeowners needing maximum thermal insulation on narrow door profiles without awkward frame overhangs or structural gaps.
  • Extreme climates and high-wind locations requiring heavy-duty 50 mph wind resistance and draft protection in sub-zero freezing weather.
  • Dogs and cats comfortable with magnetic flap seals and dual-layer flap tension.
  • Buyers looking for an ultra-durable aluminum frame backed by a lifetime warranty.

Not ideal for:

Questions

What should I do if my pet struggles to push the Endura Flap open?

The magnetic seal can be adjusted by removing or repositioning magnets to make the flap easier for pets to push through. This allows you to balance ease of use with insulation performance.

How long do Endura Flaps typically last?

The lifespan depends on usage and weather exposure, but Endura Flaps are designed to last significantly longer than standard vinyl flaps. Many homeowners only need to replace them after years of heavy use.

Is the Endura Flap suitable for both dogs and cats?

Yes. The door is available in multiple flap sizes that accommodate both cats and dogs. Choosing the correct flap size ensures pets can pass through comfortably.

Explore all questions
Product Details

Product Details

This Door Mount model is designed specifically for doors where standard pet doors are too deep to fit properly. It provides a clean, stable installation in thinner door panels, making it a practical solution for interior doors, garage doors, and other narrow constructions.

Magnets along three sides of the flap help it return to a closed position after each use, creating a more consistent barrier against wind and outside air. This added control helps maintain a more comfortable environment near the door, even in changing weather conditions.

The flap is constructed from a polyolefin-based polymer that stays responsive across a wide range of temperatures. It remains flexible in cold conditions and resists deformation in heat, allowing pets to move through easily while maintaining proper closure.

The aluminum frame provides a durable structure that holds up over time, even with frequent use from active pets. The taller, narrower flap shape supports a variety of pet sizes while maintaining a balanced, functional design.

A locking cover is included to secure the opening when the door is not in use. The construction provides a more substantial barrier, giving added control over when and how the pet door is used.

Magnet strength can be adjusted to better match your pet and environment. This allows for an easier push-through for more hesitant pets while still maintaining a reliable seal when conditions require it.

Made in the USA and backed by a lifetime warranty, this pet door is built for consistent performance and everyday reliability in homes that require a thinner door solution.

Sizing & Fit

Size Chart

Flap Dimensions:

6"w x 11"h

The entry way your dog goes through.

Outside Frame Dimensions

10 1/8"w x 16 3/4"h

The outer edge of the pet door.

Small flap
Small frame
Small rough cut

Rough Cut Out:

9 1/4"w x 15 1/8"h

The size of the hole needed to fit your pet door into your wall.

Flap Dimensions:

Single Flap: 8"w x 15"h

Double Flap: 8"w x 14"h

The entry way your dog goes through.

Outside Frame Dimensions

12 3/16"w x 20 3/4"h

The outer edge of the pet door.

Medium flap
Medium frame
Medium rough cut

Rough Cut Out:

11 5/16"w x 19 3/16"h

The size of the hole needed to fit your pet door into your wall.

Flap Dimensions:

Single Flap: 10"w x 19"h

Double Flap: 10"w x 18"h

The entry way your dog goes through.

Outside Frame Dimensions

14 3/16"w x 24 3/4"h

The outer edge of the pet door.

Large flap
Large frame
Large rough cut

Rough Cut Out:

13 3/8"w x 23 3/16"h

The size of the hole needed to fit your pet door into your wall.

Flap Dimensions:

Single Flap: 12"w x 23"h

Double Flap: 12"w x 22"h

The entry way your dog goes through.

Outside Frame Dimensions

16 1/4"w x 28 7/8"h

The outer edge of the pet door.

Extra Large flap
Extra Large frame
Extra Large rough cut

Rough Cut Out:

15 1/2"w x 27 3/16"h

The size of the hole needed to fit your pet door into your wall.

Flap Dimensions:

Single Flap: 14"w x 27"h

Double Flap: 14"w x 26"h

The entry way your dog goes through.

Outside Frame Dimensions

18 1/4"w x 32 7/8"h

The outer edge of the pet door.

XX Large flap
XX Large frame
XX Large rough cut

Rough Cut Out:

17 1/2"w x 31 1/4"h

The size of the hole needed to fit your pet door into your wall.

Flap Size Flap Dimension Rough Cut Out Outside Frame Dimension Recommended Pet Height
Small 6"w x 11"h 9 1/4"w x 15 1/8"h 10 1/8"w x 16 3/4"h 9" - 16"
Medium (Single) 8"w x 15"h 11 5/16"w x 19 3/16"h 12 3/16"w x 20 3/4"h 9" - 22"
(Double) 8"w x 14"h 8" - 21"
Large (Single) 10"w x 19"h 13 3/8"w x 23 3/16"h 14 3/16"w x 24 3/4"h 9" - 28"
(Double) 10"w x 18"h 8" - 27"
Extra Large (Single) 12"w x 23"h 15 1/2"w x 27 3/16"h 16 1/4"w x 28 7/8"h 9" - 36"
(Double) 12"w x 22"h 8" - 34"
XX Large (Single) 14"w x 27"h 17 1/2"w x 31 1/4"h 18 1/4"w x 32 7/8"h 9" - 42"
(Double) 14"w x 26"h 8" - 41"

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

Videos

Videos

Removing Side Magnets


Design of the Endura Flap


Adjusting Your Endura Flap® Magnet Strength


The Endura Flap Pet Door


FAQs

FAQ

Reviews

Customer Reviews

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Track heights exceeding 106 inches (107" or higher) may require additional shipping charges. Please provide your contact information for a custom freight quote, and our team will follow up during normal business hours.