Ideal solution for thick walls: Designed to accommodate walls 7-3/4" - 15-3/4" thick, perfect for brick, concrete, or deep walls
Insulating and flexible: Flap material remains functional in extreme temperatures, tested between -40°F and 110°F
Wind-resistant design: Magnetic lining seals the flap shut in winds up to 50mph, protecting your home from drafts and energy loss
Robust construction: Durable aluminum frame and wood tunnel ensure long-lasting performance and ease of maintenance
Security when needed: Comes with a sturdy locking cover to block access when desired, ideal for nighttime or when you're away
Wide range of sizes: Suitable for cats and dogs of all sizes, from small to extra-large
Aesthetically pleasing: Available in white, black, or tan aluminum frames to match your home's décor. You can also mix and match your color frame options
Made in the USA: 100% designed, engineered, and manufactured in the U.S., with a 90-day return policy and lifetime warranty
Professional installation recommended: Advanced skills installation ensures a perfect fit and seamless integration into your wall
Easy maintenance: Wood tunnel allows for simple flap replacement, and flaps can be cleaned with soap and water or non-harsh cleaners
Freedom for your pets: Grant your furry friends the independence to come and go as they please while maintaining your home's comfort and security
Size & Measurement Guidex
x
Size Chart
Small Single Flap: 6"w x 11"h
Medium Single Flap: 8"w x 15"h
Large Single Flap: 10"w x 19"h
Extra Large Single Flap: 12"w x 23"h
Flap Dimensions:
Single Flap: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.
Rough Cut Out:
9 1/4"w x 15 7/8"h
The size of the hole needed to fit your pet door into your wall.
Flap Dimensions:
Single Flap:8"w x 15"h
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.
Rough Cut Out:
11 1/4"w x 19 7/8"h
The size of the hole needed to fit your pet door into your wall.
Flap Dimensions:
Single Flap:10"w x 19"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.
Rough Cut Out:
13 3/8"w x 23 7/8"h
The size of the hole needed to fit your pet door into your wall.
Flap Dimensions:
Single Flap:12"w x 23"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.
Rough Cut Out:
15 3/8"w x 27 7/8"h
The size of the hole needed to fit your pet door into your wall.
Flap Size
Flap Dimension
Flap Style
Rough Cut Out
Outside Frame Dimension
Recommended Pet Height
Small
6" w x 11" h
Single
9 1/4" w x 15 7/8" h
10 1/8" w x 16 3/4" h
9" - 16"
Medium
8" w x 15" h
Single
11 1/4" w x 19 7/8" h
12 3/16" w x 20 3/4" h
9" - 22"
Large
10" w x 19" h
Single
13 3/8" w x 23 7/8" h
14 3/16" w x 24 3/4"
9" - 28"
Extra Large
12" w x 23" h
Single
15 3/8" w x 27 7/8" h
16 1/4" w x 28 7/8" h
9" - 36"
Single flap or double flap? This is the single flap version. The single flap will be more than enough if you live in a more temperate climate. The flap would be on the inside of the wall on the same side as the locking cover. Double flaps will provide more insulation for your home, perfect for extreme climates. With a double-flap system, there is a flap on each side of the tunnel and dead air space in between to add extra insulation.
Note: Endura Flap pet doors are not recommended for use by kittens or very small dogs. Cats have been successful using Small; however, a few have found the Medium difficult to use. We would not recommend using the Large or Extra Large or any of the double flap versions for cats.
Saw for Cutting Outer Wall (compatible with your wall material)
Razorblade (for trimming tape)
Philips Screwdriver
Straight edge
Level
Read instructions & notes thoroughly before installation. We recommend a licensed, bonded and insured contractor do this work.
Step 1Measure Your Pet
Measure your pet and make a mark at least 3” above your pet’s height on your wall, this will line up with the top of the cutout.
Depending on pet height and the height of your baseboards you may need to cut into the baseboards to install the frame. If you want to avoid that, make sure to set the height accordingly.
Step 2Prepare Wall for Installation
Find a location clear of plumbing, electrical and other obstructions. If you have stud construction choose a spot against one stud when possible.
Use the included cutout template to mark out the rough opening in the wall. Make sure your lines are level. This cut out will leave space for the included tunnel material.
Double check your template dimensions with the chart before cutting into your wall.
Step 3Make the Rough Cutout
Cut through your wall with the appropriate tools.
In some cases, you may have to cut and brace a stud. See local building codes to ensure this is done properly. We recommend hiring a professional if you are unsure what to do.
Remove insulation inside the wall as needed. You can save some to put back into open areas of the wall cavity.
Step 4Add a Bottom Support Stud
The step won't be necessary for most cinder block walls.
Add a bottom support stud between the studs in your wall.
Add any other supports or bracing as needed.
Step 5Create the Tunnel Liner Box
Create the full size tunnel liner box by assembling the tunnel material with all the painted edges facing the same way
Attach the pieces with the provided medium wood screws as demonstrated in the diagram.
Pre-drill the holes to avoid splitting the plywood.
Step 6Draw Cut Line On Tunnel
Slide tunnel box into opening until the inside of the box is flush or slightly inside the surface of your inner wall. Mark a line all around the box at the outer wall. Remove the box from the wall.
Relocate the tunnel box screws so they are all within the usable area of the tunnel. Cut off the excess tunnel material line.
Cut just inside your line to make sure the tunnel does not end up sticking out of the wall after installation. It should be flush or just inside the wall surface on both inside and outside.
Step 7Attach the Tunnel Liner Box
Insert the tunnel liner box into the rough cutout opening. Use the provided shims to get the tunnel level and square.
Use the provided long wood screws and/or concrete screws to attach the tunnel box to a nearby stud, brick, concrete, or bottom support.
Trim off shims flush to the wall. You can score with a knife then snap them off.
If you are installing your tunnel into or against concrete, you may need a moisture barrier. Check your local building codes for more information.
Step 8Apply Spray Foam Sealant
Use the spray foam sealant to fill any gaps around the tunnel box.
Once the sealant dries, trim off any excess.
Step 9aPrepare Tunnel for Sealing Tunnel Tape
Make sure that the spray foam sealant is dry and that the tunnel area is clean.
The edge of the sealing tape should line up with your inside wall. For deep walls, you will need to use multiple layers of tunnel tape, overlapping 1" on each piece to cover the entire tunnel. Make sure to have at least 1" of tape overhand the outside wall.
To apply the sealing tunnel tape, start at the middle of the upper tunnel and apply the tape all around the tunnel, ending with a slight overlap at the top. Make sure to press the tape tightly into the corners as you go.
Once in place, firmly apply pressure all along the tape to activate the adhesive.
Step 9bApply Sealing Tunnel Tape
Cut each corner up to the outer wall.
Fold back each piece of the sealing tape against the outer wall, pressing firmly.
Apply caulking to the openings in all four corners, sealing the cut area of the tape to the outer wall.
The sealing tape will be trimmed in a future step.
Step 10Screw in the Frames
Make sure the four tabs are upright and snug to the inside frame. You may have to loosen the screw to rotate it into place using a Phillips screwdriver.
Insert the inside frame and level it in the opening with the hole transfer jig. While holding the frame flush against the wall, use four wood screws to screw the mounting tabs to the inside of the tunnel.
If there are larger gaps you can pre-bend the mounting tab toward the tunnel.
Step 11Install the Outside Frame
Repeat installation step #10 for the outside frame, making sure the flap(s) swing through both frames without interference.
Step 12Seal the Inside Frame
From the outside, apply silicone in the tunnel, around the sides and bottom edges of the inside frame. This will seal the tunnel tape to prevent water intrusion.
Step 13Seal the Outside Frame
Use a sharp razor blade to trim off any excess tunnel tape that is sticking out
past the outside frame on all four sides.
Apply silicone where the outside frame meets the exterior wall on the top and sides, but leave the bottom open to allow for drainage.
Videos
Endura Flap High-Quality Design
Endura Flap Impact Test
Leaf Blower Test
Variable Magnetic Resistance
How to Remove Side Magnets for Easier Use
FAQ
What wall thickness range does this dog door install in?
The Endura Flap Pet Door for Deep Walls installs in walls 2" - 16" thick. Follow the installation instructions to trim the provided tunnel pieces to the thickness of your wall.
What if my wall is more than 15 3/4" thick?
If your wall is more than 15 3/4" thick you will need to use your own tunnel materials instead of the provided ones, which frame out walls up to 15 3/4" thick. You will need to purchase wood long enough to frame out your wall thickness and seal it with exterior rated paint. If your wall is more than 15 3/4" thick, you can purchase the standard Endura wall model and build your own tunnel.
Can I install this into my sliding glass door or screen door?
Unfortunately, wall kit pet doors cannot be installed into screen or sliding glass patio doors. However, you can get the Thermo Panel 3e pet door insert, which will fit into the track of your sliding door.
How easy is the door installation process?
It's a DIY process, but it can be difficult for people who are not already handy. You should consider hiring professional help in order to make sure you don't ruin your interior or exterior walls.
How do I know what flap size will fit my dog?
When installing the Endura Flap extreme weather dog door wall mount you want it to clear the top of your dog's back by at least 1". You also want the step over to be comfortable, no more than 1/3 your pet's shoulder height. Lastly, you want the width to allow your pet to go through without touching the sides, so about 1" wider than them.
Is the flap flexible? Seems like it would trap a dog if it backed up.
The Endura Flap is slightly more rigid than other economy-style flaps, but it is a safe, soft, flexible flap.
Is the flap loud when the dog goes in or out?
When the flap gets to its resting place there is a snapping sound when the magnets employ. This sound lets you know the door is doing its job sealing out the elements and keeping your heated or cooled air inside.
What side does the locking cover slide in?
All locking covers slide in from the top. If you purchase a double flap model, the locking cover can be used on the inside or outside the frame. If you purchase a single flap, the locking cover is on the interior frame (the side closest to the inside of your home).
Are replacement flaps available?
Yes, we carry Endura Replacement Flaps. They will work for all Endura models (wall mount, doggy door mount, kennel doors, window sashes, and sliding glass door patio pet doors).
I have a dog that I want to let out, but I want to prevent our cats from using it. Can the door be weighted to keep them from using it?
You can increase the magnetic strength of the door by purchasing additional magnets here. Some people have found success doing this and keeping their cats inside.
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.
Customer Reviews
Customer Reviews
4.5Based on 2 Reviews
5 ★
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1
4 ★
50%
1
3 ★
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2 ★
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1 ★
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Customer Photos
Write a ReviewAsk a Question
Reviews
Questions
Thank you for submitting a review!
Your input is very much appreciated. Share it with your friends so they can enjoy it too!
This is a great option for deep walls. The installation can be tricky, so it's best to hire a professional if you aren't comfortable installing yourself. The redesigned 2022 frames are very sleek and complement the look of any wall.
Hard To Install, But Still the Same Great Endura Flap Door (Staff Review)
The new frame design for the Endura Flap has led to the Wall Mount being harder to install, and this deep tunnel design has only added to the complexity. If you are not handy, you should consider hiring professional help to install your door.
That being said, the wood tunnel is still easier to work with than the old steel tunnel design, and once the door is installed, it is much easier to perform maintenance like replacing the flaps.
The size of the hole needed to fit your pet door into your wall.
Flap Dimensions:
Single Flap:8"w x 15"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.
Rough Cut Out:
11 1/4"w x 19 7/8"h
The size of the hole needed to fit your pet door into your wall.
Flap Dimensions:
Single Flap:10"w x 19"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.
Rough Cut Out:
13 3/8"w x 23 7/8"h
The size of the hole needed to fit your pet door into your wall.
Flap Dimensions:
Single Flap:12"w x 23"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.
Rough Cut Out:
15 3/8"w x 27 7/8"h
The size of the hole needed to fit your pet door into your wall.
Flap Size
Flap Dimension
Flap Style
Rough Cut Out
Outside Frame Dimension
Recommended Pet Height
Small
6" w x 11" h
Single
9 1/4" w x 15 7/8" h
10 1/8" w x 16 3/4" h
9" - 16"
Medium
8" w x 15" h
Single
11 1/4" w x 19 7/8" h
12 3/16" w x 20 3/4" h
9" - 22"
Large
10" w x 19" h
Single
13 3/8" w x 23 7/8" h
14 3/16" w x 24 3/4"
9" - 28"
Extra Large
12" w x 23" h
Single
15 3/8" w x 27 7/8" h
16 1/4" w x 28 7/8" h
9" - 36"
Single flap or double flap? This is the single flap version. The single flap will be more than enough if you live in a more temperate climate. The flap would be on the inside of the wall on the same side as the locking cover. Double flaps will provide more insulation for your home, perfect for extreme climates. With a double-flap system, there is a flap on each side of the tunnel and dead air space in between to add extra insulation.
Note: Endura Flap pet doors are not recommended for use by kittens or very small dogs. Cats have been successful using Small; however, a few have found the Medium difficult to use. We would not recommend using the Large or Extra Large or any of the double flap versions for cats.
Saw for Cutting Outer Wall (compatible with your wall material)
Razorblade (for trimming tape)
Philips Screwdriver
Straight edge
Level
Read instructions & notes thoroughly before installation. We recommend a licensed, bonded and insured contractor do this work.
Step 1Measure Your Pet
Measure your pet and make a mark at least 3” above your pet’s height on your wall, this will line up with the top of the cutout.
Depending on pet height and the height of your baseboards you may need to cut into the baseboards to install the frame. If you want to avoid that, make sure to set the height accordingly.
Step 2Prepare Wall for Installation
Find a location clear of plumbing, electrical and other obstructions. If you have stud construction choose a spot against one stud when possible.
Use the included cutout template to mark out the rough opening in the wall. Make sure your lines are level. This cut out will leave space for the included tunnel material.
Double check your template dimensions with the chart before cutting into your wall.
Step 3Make the Rough Cutout
Cut through your wall with the appropriate tools.
In some cases, you may have to cut and brace a stud. See local building codes to ensure this is done properly. We recommend hiring a professional if you are unsure what to do.
Remove insulation inside the wall as needed. You can save some to put back into open areas of the wall cavity.
Step 4Add a Bottom Support Stud
The step won't be necessary for most cinder block walls.
Add a bottom support stud between the studs in your wall.
Add any other supports or bracing as needed.
Step 5Create the Tunnel Liner Box
Create the full size tunnel liner box by assembling the tunnel material with all the painted edges facing the same way
Attach the pieces with the provided medium wood screws as demonstrated in the diagram.
Pre-drill the holes to avoid splitting the plywood.
Step 6Draw Cut Line On Tunnel
Slide tunnel box into opening until the inside of the box is flush or slightly inside the surface of your inner wall. Mark a line all around the box at the outer wall. Remove the box from the wall.
Relocate the tunnel box screws so they are all within the usable area of the tunnel. Cut off the excess tunnel material line.
Cut just inside your line to make sure the tunnel does not end up sticking out of the wall after installation. It should be flush or just inside the wall surface on both inside and outside.
Step 7Attach the Tunnel Liner Box
Insert the tunnel liner box into the rough cutout opening. Use the provided shims to get the tunnel level and square.
Use the provided long wood screws and/or concrete screws to attach the tunnel box to a nearby stud, brick, concrete, or bottom support.
Trim off shims flush to the wall. You can score with a knife then snap them off.
If you are installing your tunnel into or against concrete, you may need a moisture barrier. Check your local building codes for more information.
Step 8Apply Spray Foam Sealant
Use the spray foam sealant to fill any gaps around the tunnel box.
Once the sealant dries, trim off any excess.
Step 9aPrepare Tunnel for Sealing Tunnel Tape
Make sure that the spray foam sealant is dry and that the tunnel area is clean.
The edge of the sealing tape should line up with your inside wall. For deep walls, you will need to use multiple layers of tunnel tape, overlapping 1" on each piece to cover the entire tunnel. Make sure to have at least 1" of tape overhand the outside wall.
To apply the sealing tunnel tape, start at the middle of the upper tunnel and apply the tape all around the tunnel, ending with a slight overlap at the top. Make sure to press the tape tightly into the corners as you go.
Once in place, firmly apply pressure all along the tape to activate the adhesive.
Step 9bApply Sealing Tunnel Tape
Cut each corner up to the outer wall.
Fold back each piece of the sealing tape against the outer wall, pressing firmly.
Apply caulking to the openings in all four corners, sealing the cut area of the tape to the outer wall.
The sealing tape will be trimmed in a future step.
Step 10Screw in the Frames
Make sure the four tabs are upright and snug to the inside frame. You may have to loosen the screw to rotate it into place using a Phillips screwdriver.
Insert the inside frame and level it in the opening with the hole transfer jig. While holding the frame flush against the wall, use four wood screws to screw the mounting tabs to the inside of the tunnel.
If there are larger gaps you can pre-bend the mounting tab toward the tunnel.
Step 11Install the Outside Frame
Repeat installation step #10 for the outside frame, making sure the flap(s) swing through both frames without interference.
Step 12Seal the Inside Frame
From the outside, apply silicone in the tunnel, around the sides and bottom edges of the inside frame. This will seal the tunnel tape to prevent water intrusion.
Step 13Seal the Outside Frame
Use a sharp razor blade to trim off any excess tunnel tape that is sticking out
past the outside frame on all four sides.
Apply silicone where the outside frame meets the exterior wall on the top and sides, but leave the bottom open to allow for drainage.
Videos
Endura Flap High-Quality Design
Endura Flap Impact Test
Leaf Blower Test
Variable Magnetic Resistance
How to Remove Side Magnets for Easier Use
FAQ
What wall thickness range does this dog door install in?
The Endura Flap Pet Door for Deep Walls installs in walls 2" - 16" thick. Follow the installation instructions to trim the provided tunnel pieces to the thickness of your wall.
What if my wall is more than 15 3/4" thick?
If your wall is more than 15 3/4" thick you will need to use your own tunnel materials instead of the provided ones, which frame out walls up to 15 3/4" thick. You will need to purchase wood long enough to frame out your wall thickness and seal it with exterior rated paint. If your wall is more than 15 3/4" thick, you can purchase the standard Endura wall model and build your own tunnel.
Can I install this into my sliding glass door or screen door?
Unfortunately, wall kit pet doors cannot be installed into screen or sliding glass patio doors. However, you can get the Thermo Panel 3e pet door insert, which will fit into the track of your sliding door.
How easy is the door installation process?
It's a DIY process, but it can be difficult for people who are not already handy. You should consider hiring professional help in order to make sure you don't ruin your interior or exterior walls.
How do I know what flap size will fit my dog?
When installing the Endura Flap extreme weather dog door wall mount you want it to clear the top of your dog's back by at least 1". You also want the step over to be comfortable, no more than 1/3 your pet's shoulder height. Lastly, you want the width to allow your pet to go through without touching the sides, so about 1" wider than them.
Is the flap flexible? Seems like it would trap a dog if it backed up.
The Endura Flap is slightly more rigid than other economy-style flaps, but it is a safe, soft, flexible flap.
Is the flap loud when the dog goes in or out?
When the flap gets to its resting place there is a snapping sound when the magnets employ. This sound lets you know the door is doing its job sealing out the elements and keeping your heated or cooled air inside.
What side does the locking cover slide in?
All locking covers slide in from the top. If you purchase a double flap model, the locking cover can be used on the inside or outside the frame. If you purchase a single flap, the locking cover is on the interior frame (the side closest to the inside of your home).
Are replacement flaps available?
Yes, we carry Endura Replacement Flaps. They will work for all Endura models (wall mount, doggy door mount, kennel doors, window sashes, and sliding glass door patio pet doors).
I have a dog that I want to let out, but I want to prevent our cats from using it. Can the door be weighted to keep them from using it?
You can increase the magnetic strength of the door by purchasing additional magnets here. Some people have found success doing this and keeping their cats inside.
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.
Customer Reviews
Customer Reviews
4.5Based on 2 Reviews
5 ★
50%
1
4 ★
50%
1
3 ★
0%
0
2 ★
0%
0
1 ★
0%
0
Customer Photos
Write a ReviewAsk a Question
Reviews
Questions
Thank you for submitting a review!
Your input is very much appreciated. Share it with your friends so they can enjoy it too!
This is a great option for deep walls. The installation can be tricky, so it's best to hire a professional if you aren't comfortable installing yourself. The redesigned 2022 frames are very sleek and complement the look of any wall.
Hard To Install, But Still the Same Great Endura Flap Door (Staff Review)
The new frame design for the Endura Flap has led to the Wall Mount being harder to install, and this deep tunnel design has only added to the complexity. If you are not handy, you should consider hiring professional help to install your door.
That being said, the wood tunnel is still easier to work with than the old steel tunnel design, and once the door is installed, it is much easier to perform maintenance like replacing the flaps.