Endura Flap Dog Doors for Walls

189 Reviews
Regular price $339.99
Shipping calculated at checkout.

Color: White
Flap Size
Flap Type


  • Telescoping tunnel adjusts to walls 4 1/2" to 7 1/2" thick
  • Superior insulation with single or double flaps, flexible in -40°F and resistant to 50 mph winds.
  • Durable ABS locking cover is as strong as 16-gauge steel and securely blocks access when needed (inside frame only).
  • Robust aluminum frame, available in white or black.
  • Tall, slim flap design accommodates a wide range of pet sizes.
  • Telescoping aluminum tunnel is secure, weather resistant, and easy-to-install.
  • Lifetime warranty and 100% designed, engineered, and manufactured in the U.S.

Product Details


The Endura Flap Dog Doors for Walls with Wood Tunnel delivers premium performance and lasting durability. Engineered for walls 4 1/2" to 7/12" thick, with an option for deeper walls up to 13", these pet doors offer unmatched insulation and wind resistance.

Choose between single or double flaps, designed to stay flexible down to -40°F and remain sealed against 50 mph winds, thanks to strong magnets lining three sides.

The sleek aluminum frame, available in white or black, pairs with a rugged, all-metal telescoping tunnel that simplifies installation and provides a cleaner, more durable fit. The taller, slim flap design suits both large and small pets, and the included steel-strength ABS locking cover slides into place to block access when needed.

Built to last and backed by a lifetime warranty, this American-made pet door is a stylish, secure, and energy-efficient solution for your pet’s freedom. Plus, the easy-to-clean flap and provided installation videos and instructions make setup a breeze. Endura Flap isn’t just a pet door—it’s a long-term investment in your home’s comfort and your pet’s happiness.

Sizing & Fit

Size Chart

Flap Dimensions:

Single Flap: 6"w x 11"h

Double Flap: 6"w x 10"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:

8 5/8"w x 15"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:

10 3/8"w x 19"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:

12 1/2"w x 23 1/16"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:

14 11/16"w x 27 1/16"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:

16 13/16"w x 31 3/16"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 (Single) 6"w x 11"h 8 5/8"w x 15"h 10 1/8"w x 16 3/4"h 9" - 16"
(Double) 6"w x 10"h 8" - 14"
Medium (Single) 8"w x 15"h 10 3/8"w x 19"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 12 1/2"w x 23 1/16"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 14 11/16"w x 27 1/16"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 16 13/16"w x 31 3/16"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

Number of Flaps:

  • 1 - Single Flap: On inside of wall (same side as locking cover)

  • 2 - Double Flap: One on each side. The included dead-air-space and extra flap add significantly to the already considerable insulation and sealing values.

Product Specs

Additional Information

Frame Material

Architectural Extruded Aluminum

Flap Colors

Frosted

Flap Thickness

7/8"

Flap Warranty (if separate)

Lifetime

Warranty Period

Lifetime

Return Period

90 days (except for custom height ranges)

Locking Cover Material

Molded ABS Plastic

Your Maximum Pet Size

Cats, Large Cats, Small Dogs, Medium Dogs, Large Dogs, X-Large Dogs

Climate Suitability

Severe-4 Season

Flap Design

Single, Double, Flexible, Insulated Flap

Ability to Lock Flap

Separate Locking Cover-Loads from Top

Can Be Installed In

Walls, Brick Walls, Concrete Walls, Kennel Walls

Award Winning Design

Yes

Sealing Value

Very High

Wind Resistance

Very High

Replacement Flaps Available

Yes

Insulation Value

High, Very High

Wall Thickness Range

4.5" - 8"

Installation Guide

Installation Information

Single Flap Wall Mount

Installation icon Printable Version
Installation icon Difficulty High
Installation icon Steps 11
Installation icon Time Required 2 hours

Parts

  • Inner frame with tunnel
  • Locking cover
  • Caulking
  • Outer wall transfer template with level and pencil
  • Outer frame with tunnel
  • Inner wall template
  • Sheet metal screws

Tools

  • Measuring tape
  • Electric drill/driver (philips head and drill bit for outer wall)
  • Safety gear
  • Stud finder
  • Drywall knife (or other tool for cutting the inside wall)
  • Saw (for the outside wall, pick one that works with your wall material)
  • Caulking gun
  • Clamp (or an extra set of hands!)

Take a few minutes to read these instructions from start to finish— it’s worth it! If the thought of cutting a hole in your house makes your palms sweaty, no shame in bringing in a pro to handle it!

Step 1 Measure Your Pet

Measure Your Pet
  • First up, measure your pet and mark the wall 3 inches above their height—it’s the sweet spot for lining up the template.
  • Don’t want to cut into the baseboards? If needed, adjust the height of the pet door so you don’t have to cut them. Short-legged or mobility-limited pets may need a step added if you have taller baseboards. Consider how high your pet will need to step from both inside and outside the pet door, while still allowing clearance above their back.

Step 2 Prepare Wall for Installation

Prepare Wall for Installation
  • Find a wall spot with a stud on one side and nothing scary like pipes or wires lurking behind it.
  • Once you’ve tracked down the stud, cut a little peek-a-boo hole and check things out with your hands—better safe than sorry!

Step 3 Make the Rough Cutout

Make the Rough Cutout
Make the Rough Cutout
Make the Rough Cutout
  • Line up the template with the stud, level as needed, and tape it down so it doesn’t go anywhere.
  • Trace the outline of the template. Once you’ve got your full template traced, remove it and finish cutting along the lines.
  • If you find insulation inside the wall, pull it out where necessary, but don’t toss it! You’ll need it to fill in any open areas later.
  • Recommended (but optional): Before moving on, add a bottom support stud between the wall studs to help secure the pet door. Pick a piece of lumber that fits your wall thickness, cut it to slide snugly between the studs (usually 14.5"), and lock it down with long screws driven in at an angle

Step 4 MARK DRILL POINTS FOR THE OUTER WALL

MARK DRILL POINTS FOR THE OUTER WALL
MARK DRILL POINTS FOR THE OUTER WALL
MARK DRILL POINTS FOR THE OUTER WALL
MARK DRILL POINTS FOR THE OUTER WALL
  • Take the included Outer Wall marking Template and place it on the bottom left corner of the tunnel on the outside frame, where it will gently touch the inside of the outer wall. The outside trim frame has the larger tunnel, and no flap!
  • From inside the house, slide the outside frame partway into the wall opening until the Outer Wall Template reaches the exterior wall.
  • Using the small hole in the template and the provided pencil, mark the drill point.
  • Repeat this process for the top right corner: position the outer wall marking template, align it properly, and mark the spot.

Step 5 DRILL THROUGH THE OUTER WALL

DRILL THROUGH THE OUTER WALL
  • Once both points are marked, drill straight through the wall at each location. These holes will guide you when installing the outer frame in the next step.
  • If you use a 1/4" drill bit, the next step will be easier but any drill bit will work.

Step 6 MARK WHERE TO CUT THE OUTER WALL

MARK WHERE TO CUT THE OUTER WALL
MARK WHERE TO CUT THE OUTER WALL
MARK WHERE TO CUT THE OUTER WALL
MARK WHERE TO CUT THE OUTER WALL
  • Head outside and line up the outer wall marking template with the holes you drilled earlier. Level the jig, then mark its corners on your wall.
  • If you need a little extra help lining things up, stick the drill bit in the hole to use as a pin. This works best with a ¼ " drill bit.
  • After marking your two corners, grab the cardboard template and line it up with the corners you marked to trace out the cut lines.
  • Then, remove the template and get your saw ready for the next step.

Step 7 CUT OUTER WALL OPENING

CUT OUTER WALL OPENING
  • Cut the outer wall opening using the appropriate tool for your wall type (e.g., stucco, siding, etc.).
  • Take your time cutting along the lines—it’s all about accuracy here!

Step 8 INSERT PET DOOR FRAMES

INSERT PET DOOR FRAMES
  • Slide both frames (inside and outside) into the wall opening and telescope them together until snug against both walls. It is easier to insert the outside trim frame first, and this step is where an extra set of hands can be super helpful!

Step 9 SECURE THE FRAMES TO THE STUD

SECURE THE FRAMES TO THE STUD
SECURE THE FRAMES TO THE STUD
SECURE THE FRAMES TO THE STUD
  • Get the frames leveled and aligned, then grab a helper to gently squeeze them together from both sides of the wall. Or use a large clamp, which can also hold open the flap for you.
  • While maintaining this pressure, drive two screws through the tunnels into the stud side—position one screw about one-third from the top and the other about one-third from the bottom. This ensures a snug and secure fit.
  • Repeat on the other side, even if there’s no stud—it will still hold securely.

Step 10 TEST YOUR WORK

TEST YOUR WORK
  • Test the flap to ensure smooth operation. It should swing freely in both directions. If the flap catches at all, make adjustments before sealing the frame in the next step.

Step 11 SEAL THE FRAME

SEAL THE FRAME
  • To ensure your pet door is weather-tight and energy-efficient, follow these sealing steps:
  • Seal the Interior Frame: Apply a bead of silicone caulk between the interior frame and the metal tunnel.
  • Seal the Tunnel Seams: Apply a bead of caulk along the seams where the two telescoping metal tunnel sections meet. This will prevent air or water infiltration.
  • Seal the Exterior Frame: On the outside of your home, apply caulk between the exterior frame and the wall. Be sure to seal the top and both sides, but not the bottom. You want that open for water to drain out.
  • Seriously - don’t seal the bottom, that’s your drainage zone!
  • Now, stand back, let your pet strut through their new door, and take all the credit. Well done!

Double Flap Wall Mount

Installation icon Printable Version
Installation icon Difficulty High
Installation icon Steps 11
Installation icon Time Required 2 hours

Parts

  • Inner frame with tunnel
  • Locking cover
  • Caulking
  • Outer wall transfer template with level and pencil
  • Outer frame with tunnel
  • Inner wall template
  • Sheet metal screws

Tools

  • Measuring tape
  • Electric drill/driver (philips head and drill bit for outer wall)
  • Safety gear
  • Stud finder
  • Drywall knife (or other tool for cutting the inside wall)
  • Saw (for the outside wall, pick one that works with your wall material)
  • Caulking gun
  • Clamp (or an extra set of hands!)

Take a few minutes to read these instructions from start to finish— it’s worth it! If the thought of cutting a hole in your house makes your palms sweaty, no shame in bringing in a pro to handle it!

Step 1 Measure Your Pet

Measure Your Pet
  • First up, measure your pet and mark the wall 3 inches above their height—it’s the sweet spot for lining up the template.
  • Don’t want to cut into the baseboards? If needed, adjust the height of the pet door so you don’t have to cut them. Short-legged or mobility-limited pets may need a step added if you have taller baseboards. Consider how high your pet will need to step from both inside and outside the pet door, while still allowing clearance above their back.

Step 2 Prepare Wall for Installation

Prepare Wall for Installation
  • Find a wall spot with a stud on one side and nothing scary like pipes or wires lurking behind it.
  • Once you’ve tracked down the stud, cut a little peek-a-boo hole and check things out with your hands—better safe than sorry!

Step 3 Make the Rough Cutout

Make the Rough Cutout
Make the Rough Cutout
Make the Rough Cutout
  • Line up the template with the stud, level as needed, and tape it down so it doesn’t go anywhere.
  • Trace the outline of the template. Once you’ve got your full template traced, remove it and finish cutting along the lines.
  • If you find insulation inside the wall, pull it out where necessary, but don’t toss it! You’ll need it to fill in any open areas later.
  • Recommended (but optional): Before moving on, add a bottom support stud between the wall studs to help secure the pet door. Pick a piece of lumber that fits your wall thickness, cut it to slide snugly between the studs (usually 14.5"), and lock it down with long screws driven in at an angle

Step 4 MARK DRILL POINTS FOR THE OUTER WALL

MARK DRILL POINTS FOR THE OUTER WALL
MARK DRILL POINTS FOR THE OUTER WALL
MARK DRILL POINTS FOR THE OUTER WALL
MARK DRILL POINTS FOR THE OUTER WALL
  • Take the included Outer Wall marking Template and place it on the bottom left corner of the tunnel on the outside frame, where it will gently touch the inside of the outer wall. The outside frame has the larger tunnel, and will not have the locking cover in it!
  • From inside the house, slide the outside frame partway into the wall opening until the Outer Wall Template reaches the exterior wall.
  • Using the small hole in the template and the provided pencil, mark the drill point.
  • Repeat this process for the top right corner: position the outer wall marking template, align it properly, and mark the spot.

Step 5 DRILL THROUGH THE OUTER WALL

DRILL THROUGH THE OUTER WALL
  • Once both points are marked, drill straight through the wall at each location. These holes will guide you when installing the outer frame in the next step.
  • If you use a 1/4" drill bit, the next step will be easier but any drill bit will work.

Step 6 MARK WHERE TO CUT THE OUTER WALL

MARK WHERE TO CUT THE OUTER WALL
MARK WHERE TO CUT THE OUTER WALL
MARK WHERE TO CUT THE OUTER WALL
MARK WHERE TO CUT THE OUTER WALL
  • Head outside and line up the outer wall marking template with the holes you drilled earlier. Level the jig, then mark its corners on your wall.
  • If you need a little extra help lining things up, stick the drill bit in the hole to use as a pin. This works best with a ¼ " drill bit.
  • After marking your two corners, grab the cardboard template and line it up with the corners you marked to trace out the cut lines.
  • Then, remove the template and get your saw ready for the next step.

Step 7 CUT OUTER WALL OPENING

CUT OUTER WALL OPENING
  • Cut the outer wall opening using the appropriate tool for your wall type (e.g., stucco, siding, etc.).
  • Take your time cutting along the lines—it’s all about accuracy here!

Step 8 INSERT PET DOOR FRAMES

INSERT PET DOOR FRAMES
  • Slide both frames (inside and outside) into the wall opening and telescope them together until snug against both walls. It is easier to insert the outside trim frame first, and this step is where an extra set of hands can be super helpful!

Step 9 SECURE THE FRAMES TO THE STUD

SECURE THE FRAMES TO THE STUD
SECURE THE FRAMES TO THE STUD
SECURE THE FRAMES TO THE STUD
SECURE THE FRAMES TO THE STUD
  • Get the frames leveled and aligned, then grab a helper to gently squeeze them together from both sides of the wall. Or use a large clamp, which can also hold open the flap for you.
  • While maintaining this pressure, drive two screws through the tunnels into the stud side—position one screw about one-third from the top and the other about one-third from the bottom. This ensures a snug and secure fit.
  • Repeat on the other side, even if there’s no stud—it will still hold securely.

Step 10 TEST YOUR WORK

TEST YOUR WORK
  • Test the flap to ensure smooth operation. It should swing freely in both directions. If the flap catches at all, make adjustments before sealing the frame in the next step.

Step 11 SEAL THE FRAME

SEAL THE FRAME
  • To ensure your pet door is weather-tight and energy-efficient, follow these sealing steps:
  • Seal the Interior Frame: Apply a bead of silicone caulk between the interior frame and the metal tunnel.
  • Seal the Tunnel Seams: Apply a bead of caulk along the seams where the two telescoping metal tunnel sections meet. This will prevent air or water infiltration.
  • Seal the Exterior Frame: On the outside of your home, apply caulk between the exterior frame and the wall. Be sure to seal the top and both sides, but not the bottom. You want that open for water to drain out.
  • Seriously - don’t seal the bottom, that’s your drainage zone!
  • Now, stand back, let your pet strut through their new door, and take all the credit. Well done!
Videos

Videos

The Endura Flap Pet Door





Design of the Endura Flap





Removing Side Magnets





Adjusting Your Endura Flap® Magnet Strength





The Leaf Blower Test





FAQs

FAQ

Customer Reviews
4.8 Based on 189 Reviews
5 ★
88% 
167
4 ★
6% 
11
3 ★
4% 
7
2 ★
2% 
4
1 ★
0% 
0
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Filter Reviews:
D
01/10/2025
Debbie SVG verified by SHOP
United States United States

It is a great door

MW
12/25/2024
Michael W.
United States United States

Very sturdy but dogs won’t use it

Very sturdy product and definitely stands up to wind and rain! Unfortunately it’s so sturdy my dog, who has used a doggie door for 9 years, won’t use it. We’re still trying to train him after 2 weeks but it’s not looking good. Beware before spending big money on a double flap like I did.

A PetDoors.com Customer
JC
07/13/2024
Jeffrey C.
United States United States

High quality

This is an upgrade from a cheap PetSafe door. It is clear the seal and insulation of this door far surpasses that of the Petsafe door. My pets are panels were warping and not sealing at all after just 1 year of use. Looking forward to see how these hold up.

DC
12/12/2023
Daniel C.
United States United States

Would recommend

Installation was easy. Took my time to make sure everything is sealed properly. Had literally everything needed to install. One tube of caulk wasn’t sufficient for my install. This is the third through wall dog door and seems to be the most promising. Allows access to the outside yard all day while we are at work. Seals out drafts functionally energy efficient. We live in the north east where it has already been 16 degrees overnight and haven’t noticed a draft at all.

MJ
08/16/2023
Margaret J.
United States United States

Big project

It was hard to cut the hole in wood frame, mortar, chicken wire and stucco. I had to get more wood to do the installation. The extra large Enduro double flap doors should have included two locking covers. One for the inside and one for the outside to use for bad weather and security. Quality of product looks good. Very expensive