Endura Flap Pet Door for Thick Walls
- Perfect for thick walls: Designed for walls 7 3/4" - 15 3/4" thick; ideal for brick, concrete, or kennel walls
- Insulating flaps: Flexible flaps withstand 50 mph winds and -40℉ temperatures, ensuring an energy-efficient home
- Single or double flap: Choose between single or double flap options for optimal insulation
- Durable aluminum frames: Heavy-duty frames in white, black, or tan, built to last and match your home's aesthetic
- Quality and warranty: USA-made with a 90-day return policy and a lifetime warranty for peace of mind
Product Details
Sizing & Fit
Installation Guide
FAQs
ReviewsProduct Details
Give your pets the freedom they deserve with the Endura Flap Pet Door for Thick Walls. Designed to accommodate walls 7 3/4" - 15 3/4" thick, this wall-mounted pet door is perfect for homes with brick, concrete, or kennel walls. Its insulating, flexible flaps are capable of withstanding 50 mph winds and temperatures as low as -40℉, ensuring your home stays comfortable and energy-efficient.
Choose between single or double flap options to best match your insulation requirements. The durable, heavy-duty aluminum frames provide exceptional strength and come in white, black, or tan to seamlessly blend with your home's aesthetic. The Endura Flap Pet Door features a sturdy wood tunnel and protective sealing tape, safeguarding your wall's interior and ensuring a smooth installation.
The flexible flap design remains functional even in extreme cold, while the magnetic lining keeps the flap secure in heavy winds. For added security, the door includes a durable locking cover that can be easily applied when needed. The Endura Flap Pet Door for Thick Walls is suitable for cats, large cats, small dogs, medium dogs, large dogs, and X-Large dogs, allowing them to come and go as they please.
Proudly made in the USA, the Endura Flap Pet Door for Thick Walls comes with a 90-day return policy and a lifetime warranty, offering peace of mind with your purchase.
Features:
- Customizable installation: Extra-long tunnel pieces allow for versatile installation in various wall thicknesses
- Attractive design: Frame colors are chosen to complement your home's appearance
- Easy maintenance: Wood tunnel pieces simplify flap replacement and cleaning with soap and water
- Active pets welcome: Sturdy construction holds up to pets running through the door at full speed
- Freedom for your pets: Allows your furry friends to come and go as they please, suitable for various pet sizes
Size Chart
| Flap Size | Flap Dimension | Rough Cut Out | Outside Frame Dimension | Recommended Pet Height |
|---|---|---|---|---|
| Small | (Single) 6" w x 11" h | 9 1/4" w x 15 7/8" 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 | 11 1/4" w x 19 7/8" 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 7/8" 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 3/8" w x 27 7/8" | 16 1/4" w x 28 7/8" h | 9" - 36" |
| (Double) 12" w x 22" h | 8" - 34" |
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.
Installation Instructions
Printable Version
Difficulty
Steps
Time Required
Sections
Flags
Parts
- 1 Inside Frame
- 1 Outside Frame
- 4 Wood Tunnel Liners
- Sealing Tunnel Tape
- 8 Short Wood Screws
- 12 Medium Wood Screws
- 4 Long Wood Screws
- 4 Concrete Screws (with pilot drill bit)
- Wood Shims
- 1 Tube of Silicone
- Spray Foam Sealant
- Caulking Gun
- 1 Locking Cover
- 1 Cutout Template
Tools
- Pencil
- Hammer/Mallet
- Measuring Tape
- Electric Drill
- Safety Gear
- Stud Finder
- Drywall Knife (or other for cutting inner wall)
- 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 1 Measure 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.
Step 2 Prepare 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 3 Make the Rough Cutout
- Cut through your wall with the appropriate tools.
- Remove insulation inside the wall as needed. You can save some to put back into open areas of the wall cavity.
Step 4 Add a Bottom Support Stud
- Add a bottom support stud between the studs in your wall.
- Add any other supports or bracing as needed.
Step 5 Create 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.
Step 6 Draw 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 7 Attach 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.
Step 8 Apply 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 9a Prepare Tunnel for Sealing Tunnel Tape
- Make sure that the spray foam sealant is dry and that the tunnel area is clean.
- 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 9b Apply 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.
Step 10 Screw 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 11 Install the Outside Frame
- Repeat installation step #10 for the outside frame, making sure the flap(s) swing through both frames without interference.
Step 12 Seal 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 13 Seal 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.
FAQ
What wall thickness range does this dog door install in?The Endura Flap Pet Door for Deep Walls installs in walls 2" - 15 3/4" 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. |
I want to get the large pet door for my dog, but I am concerned about a person fitting through an x-large door.All Endura Flap Pet Doors come with a locking cover. This cover can be used to keep your pet inside by blocking access to the doggie door. It also can be used to keep intruders from entering your home. It is made from a special polymer that is as strong as 1/16 inch sheet of steel. If you need to, you can purchase additional Endura Flap locking covers.We also have a product called the Watchdog Steel Security Pet Door Cover that provides maximum security for any pet door, complete with a combination lock and all. The cover comes in sizes large enough to fit even the XL dog doors for wall mount.Security consultants agree that dogs are a good burglar deterrent, especially one that barks. If you want to leave your pet door open make sure the gate to access your yard is locked and you post a Beware of Dog sign. |
Can a large dog & cat use the same double flap door flaps?We recommend cats use the Endura Flap Cat Doors for Walls. Our Endura Flap wall mount pet door has a strong magnetic seal which may be too strong for a cat. However, if you have cats and dogs sharing a door, you can decrease the magnetic resistance of the threshold on large and extra large sizes making it easier for a cat to use. For small or medium pet doors you can offset the magnets slightly which can also decrease the magnetic strength. |
I have a small and large dog sharing this door. Will my small dog be able to open the flaps on the extra large double flap dog door?It depends on the tenacity of your small dog. With the Endura flap door for walls you can decrease the magnetic resistance of the threshold on large and extra large sizes making it easier for your small dog to use. You will also want to make sure the door is mounted low enough for the small talk to walk through and high enough to clear the large dog's back. |
Is the flap on the interior or exterior frame for single flap model?For the single flap wall mount, the flap is attached to the interior frame. If you live in a very cold climate, we'd recommend the double flap model to keep snow out of the pet door tunnel. |
How do I know what size is best for my dog?When installing the Endura Flap wall door you want it to clear the top of your dog's back by 1-2 inches, minimum. You also want the step over to be comfortable. Lastly you want the width to allow your pet to go through without touching the sides. Here's a measurement guide with tips on how to determine the correct size. |
Are the panels/flaps 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. It remains flexible in temperatures as low as -40°F. |
Is a single flap enough for extreme winter weather?A single Endura Flap on an exterior door is extremely energy-efficient and capable of withstanding winds up to 50 mph. It is the only door which allows you to increase the magnetic strength for increased wind resistance. It is recommended for timid pets. The double flap increases the energy-efficiency further. |
Does the door sound very 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 let's you know the door is doing its job sealing out the elements and keeping your heated or cooled air inside. |
I do not have to contend with wind or rain, if I buy the single flap version of the wall dog door is it possible to add the second flap in the future?It is possible, but it not simple and can be quite costly. A short explanation is that you will need to buy a new tunnel, outer frame with flap and installation kit. The only item you will keep with your single flap in the wall pet door unit is the interior frame with flap. |
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 frame. If you purchase a single flap, the locking cover is on the interior frame (the side closest to the inside of your home). |
Other brands of pet doors with plastic flaps always warp and thus let in air. How do these flaps hold up over time?The Endura Flap is made with a special polymer called Polyolefin. It remains safe, soft and flexible in temperatures as low as -40°F. It does not yellow nor harden in the sun. The patented magnetic design ensures the door door seals well for years. In fact, the pet door and flap are backed by a Lifetime warranty. |
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). |
Are there color options other than white?Yes, they are available in Tan and Bronze (Black). |
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 with purchasing additional magnets here. Some people have found success doing this and keeping their cats inside. |
Why is there a difference in flap size for the single versus the double flap models?Since each flap dual walled making them 7/8" thick as the pet pushes through the first flap will actually hit the second flap. This makes it so that there is a loss of about 1" of space a the top as they enter or exit. |
Is the patio pacific Endura Flap large wall mount - double flap large enough for a lab?In general we don't go by breed, however we have multiple dogs here that use that size door (stock code 04PP10 2) to get out to our yard. |
Is the Endura Door for Walls easy to install?Ease of installation is very subjective depending on skill set or access to certain tools that might be needed. The installation of a pet door say into a door is easier than installing it through a wall, however installing it into a door is more complicated than putting a pet door into a sliding door track, so it is also relative to what type of installation method. We recommend a contractor for installations going. |
Can this be installed into brick walls?Yes it can! You can find out how using this installing pet doors into brick walls guide. |
Customer Reviews
Size Chart
| Flap Size | Flap Dimension | Rough Cut Out | Outside Frame Dimension | Recommended Pet Height |
|---|---|---|---|---|
| Small | (Single) 6" w x 11" h | 9 1/4" w x 15 7/8" 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 | 11 1/4" w x 19 7/8" 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 7/8" 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 3/8" w x 27 7/8" | 16 1/4" w x 28 7/8" h | 9" - 36" |
| (Double) 12" w x 22" h | 8" - 34" |
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.
Parts
- 1 Inside Frame
- 1 Outside Frame
- 4 Wood Tunnel Liners
- Sealing Tunnel Tape
- 8 Short Wood Screws
- 12 Medium Wood Screws
- 4 Long Wood Screws
- 4 Concrete Screws (with pilot drill bit)
- Wood Shims
- 1 Tube of Silicone
- Spray Foam Sealant
- Caulking Gun
- 1 Locking Cover
- 1 Cutout Template
Tools
- Pencil
- Hammer/Mallet
- Measuring Tape
- Electric Drill
- Safety Gear
- Stud Finder
- Drywall Knife (or other for cutting inner wall)
- 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 1 Measure 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.
Step 2 Prepare 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 3 Make the Rough Cutout
- Cut through your wall with the appropriate tools.
- Remove insulation inside the wall as needed. You can save some to put back into open areas of the wall cavity.
Step 4 Add a Bottom Support Stud
- Add a bottom support stud between the studs in your wall.
- Add any other supports or bracing as needed.
Step 5 Create 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.
Step 6 Draw 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 7 Attach 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.
Step 8 Apply 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 9a Prepare Tunnel for Sealing Tunnel Tape
- Make sure that the spray foam sealant is dry and that the tunnel area is clean.
- 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 9b Apply 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.
Step 10 Screw 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 11 Install the Outside Frame
- Repeat installation step #10 for the outside frame, making sure the flap(s) swing through both frames without interference.
Step 12 Seal 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 13 Seal 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.
FAQ
What wall thickness range does this dog door install in?The Endura Flap Pet Door for Deep Walls installs in walls 2" - 15 3/4" 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. |
I want to get the large pet door for my dog, but I am concerned about a person fitting through an x-large door.All Endura Flap Pet Doors come with a locking cover. This cover can be used to keep your pet inside by blocking access to the doggie door. It also can be used to keep intruders from entering your home. It is made from a special polymer that is as strong as 1/16 inch sheet of steel. If you need to, you can purchase additional Endura Flap locking covers.We also have a product called the Watchdog Steel Security Pet Door Cover that provides maximum security for any pet door, complete with a combination lock and all. The cover comes in sizes large enough to fit even the XL dog doors for wall mount.Security consultants agree that dogs are a good burglar deterrent, especially one that barks. If you want to leave your pet door open make sure the gate to access your yard is locked and you post a Beware of Dog sign. |
Can a large dog & cat use the same double flap door flaps?We recommend cats use the Endura Flap Cat Doors for Walls. Our Endura Flap wall mount pet door has a strong magnetic seal which may be too strong for a cat. However, if you have cats and dogs sharing a door, you can decrease the magnetic resistance of the threshold on large and extra large sizes making it easier for a cat to use. For small or medium pet doors you can offset the magnets slightly which can also decrease the magnetic strength. |
I have a small and large dog sharing this door. Will my small dog be able to open the flaps on the extra large double flap dog door?It depends on the tenacity of your small dog. With the Endura flap door for walls you can decrease the magnetic resistance of the threshold on large and extra large sizes making it easier for your small dog to use. You will also want to make sure the door is mounted low enough for the small talk to walk through and high enough to clear the large dog's back. |
Is the flap on the interior or exterior frame for single flap model?For the single flap wall mount, the flap is attached to the interior frame. If you live in a very cold climate, we'd recommend the double flap model to keep snow out of the pet door tunnel. |
How do I know what size is best for my dog?When installing the Endura Flap wall door you want it to clear the top of your dog's back by 1-2 inches, minimum. You also want the step over to be comfortable. Lastly you want the width to allow your pet to go through without touching the sides. Here's a measurement guide with tips on how to determine the correct size. |
Are the panels/flaps 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. It remains flexible in temperatures as low as -40°F. |
Is a single flap enough for extreme winter weather?A single Endura Flap on an exterior door is extremely energy-efficient and capable of withstanding winds up to 50 mph. It is the only door which allows you to increase the magnetic strength for increased wind resistance. It is recommended for timid pets. The double flap increases the energy-efficiency further. |
Does the door sound very 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 let's you know the door is doing its job sealing out the elements and keeping your heated or cooled air inside. |
I do not have to contend with wind or rain, if I buy the single flap version of the wall dog door is it possible to add the second flap in the future?It is possible, but it not simple and can be quite costly. A short explanation is that you will need to buy a new tunnel, outer frame with flap and installation kit. The only item you will keep with your single flap in the wall pet door unit is the interior frame with flap. |
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 frame. If you purchase a single flap, the locking cover is on the interior frame (the side closest to the inside of your home). |
Other brands of pet doors with plastic flaps always warp and thus let in air. How do these flaps hold up over time?The Endura Flap is made with a special polymer called Polyolefin. It remains safe, soft and flexible in temperatures as low as -40°F. It does not yellow nor harden in the sun. The patented magnetic design ensures the door door seals well for years. In fact, the pet door and flap are backed by a Lifetime warranty. |
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). |
Are there color options other than white?Yes, they are available in Tan and Bronze (Black). |
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 with purchasing additional magnets here. Some people have found success doing this and keeping their cats inside. |
Why is there a difference in flap size for the single versus the double flap models?Since each flap dual walled making them 7/8" thick as the pet pushes through the first flap will actually hit the second flap. This makes it so that there is a loss of about 1" of space a the top as they enter or exit. |
Is the patio pacific Endura Flap large wall mount - double flap large enough for a lab?In general we don't go by breed, however we have multiple dogs here that use that size door (stock code 04PP10 2) to get out to our yard. |
Is the Endura Door for Walls easy to install?Ease of installation is very subjective depending on skill set or access to certain tools that might be needed. The installation of a pet door say into a door is easier than installing it through a wall, however installing it into a door is more complicated than putting a pet door into a sliding door track, so it is also relative to what type of installation method. We recommend a contractor for installations going. |
Can this be installed into brick walls?Yes it can! You can find out how using this installing pet doors into brick walls guide. |
