Free U.S. Shipping & Lifetime Warranty

Home > Endura Flap Builder Series Pet Door for Walls

Endura Flap Builder Series Pet Door for Walls

Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls
Endura Flap Builder Series Pet Door for Walls

Endura Flap Builder Series Pet Door for Walls

$429.99
$429.99
Info
Info
Black
White

This field is required.

  • Contains Interior and Exterior Frames with flaps and one locking cover, if you want a complete wall assembly, please order the Designer Pro.
  • Sleek integration: The flush design effortlessly blends with your wall and trim, creating a polished, professional look (trim not included).
  • Ideal for DIY enthusiasts: Offers a budget-friendly solution designed for homeowners and contractors who already have their own tools.
  • Adaptable wall thickness compatibility: Allows for versatile installation options to suit various wall dimensions.
  • Resilient, weather-resistant flaps: Capable of withstanding harsh conditions, such as 50mph winds and temperatures as low as -40°F.
  • Internal frame is smaller and has no flange which allows it to mounts flush on the wall so you can customize the trim (not included) to match your home's aesthetics. 
  • Strong, sturdy locking cover included for blocking access when needed; can be used on interior or exterior
  • Durable construction and lifetime warranty: Built with robust aluminum frames to ensure long-lasting performance and reliability.
Endura Flap Builder Series Pet Door for Walls
Small / Black Edit
Endura Flap Builder Series Pet Door for Walls

Product Details

  • Seamless flush design: Integrates perfectly with your wall and trim for a sleek, professional appearance.
  • DIY-optimized: A cost-effective solution tailored for homeowners and contractors with their own tools.
  • Customizable wall thickness: Adapts to any wall thickness for flexible installation options.
  • High insulation value: Weather-resistant flaps endure 50mph winds and -40°F temperatures to maintain a comfortable home environment.
  • Double flap design: Provides ultimate draft-protection to keep out drafts and reduce energy loss.
  • Sturdy aluminum frame: Ensures long-lasting durability and comes with a lifetime warranty.
  • Visually appealing: The flush design blends with your wall for a sophisticated, streamlined look.
  • Weather-resistant flaps: Stay flexible in -40°F temperatures and resist winds up to 50mph.
  • Magnetic lining: Provides a secure closure, preventing drafts and energy loss.
  • Easy installation: Optimized for those with their own tools, reducing waste and costs.
  • Polyolefin polymer flap: Won't warp or crack in extreme heat up to 110 degrees.
  • Flexible flap design: Swings on a rod at the top to avoid cracking and flexing.
  • Locking cover included: Front-loading locking cover blocks access when needed for added security while allowing pet door to be installed under window sills and other features. You can also check out the Watchdog Security Cover for increased protection. 
  • Energy-efficient: Keeps home insulated to lower your energy bill.
  • Accommodates various pet sizes: Taller, narrower flap design allows both big and small pets to share the door.

Size Chart

  • Small Double Flap: 6"w x 10"h
  • Medium Double Flap: 8"w x 14"h
  • Large Double Flap: 10"w x 18"h
  • Extra Large Double Flap: 12"w x 22"h

Flap Dimensions:

Double Flap:6"w x 10"h

The entry way your dog goes through.

Outer Frame Dimensions

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

Inside: 7 5/8"w x 14 7/8"h

The outer edge of the pet door.
edura small
edura frame
edura roughcut

Rough Cut Out:

9 1/4"w x 16 3/8"h

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

Flap Dimensions:

Double Flap:8"w x 14"h

The entry way your dog goes through.

Outer Frame Dimensions

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

Inside: 9 5/8"w x 18 7/8"h

The outer edge of the pet door.
edura small
edura frame
edura roughcut

Rough Cut Out:

11 1/4"w x 20 3/8"h

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

Flap Dimensions:

Double Flap:10"w x 18"h

The entry way your dog goes through.

Outer Frame Dimensions

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

Inside:11 11/16"w x 22 7/8"h

The outer edge of the pet door.
edura small
edura frame
edura roughcut

Rough Cut Out:

13 3/8"w x 24 3/8"h

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

Flap Dimensions:

Double Flap:12"w x 22"h

The entry way your dog goes through.

Outer Frame Dimensions

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

Inside: 13 3/4"w x 26 7/8"h

The outer edge of the pet door.
edura small
edura frame
edura roughcut

Rough Cut Out:

15 3/8"w x 28 3/8"h

The size of the hole needed to fit your pet door into your wall.
Flap SizeFlap DimensionFlap StyleRough Cut OutOuter Dimensions for Inside FrameOuter Dimensions for Outside FrameRecommended Pet Height
Small6" w x 10" hDouble9 1/4" w x 16 3/8" h7 5/8"w x 14 7/8"h

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

8" - 14"
Medium8" w x 14" hDouble11 1/4" w x 20 3/8" h9 5/8"w x 18 7/8"h12 3/16"w x 20 3/4"h8" - 21"
Large10" w x 18" hDouble13 3/8" w x 24 3/8"11 11/16"w x 22 7/8"h14 3/16"w x 24 3/4"h8" - 27"
Extra Large12" w x 22" hDouble15 3/8" w x 28 3/8" h13 ¾"w x  26 7/8"h

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

8" - 34"

Single flap or double flap? This is the double flap version. The double flap 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.

Find The Best Pet Door Size For My Pet

calculator.jpg

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Installation Instructions

installation video image
Installation icon Printable Version
Installation icon Difficulty High
Installation icon Steps 13
Installation icon Time Required 2-3 hours
Installation icon Sections 04
Installation icon Flags 02

Parts

  • 1 Inside Frame
  • 1 Outside Frame
  • 1 Locking Cover

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.
  • 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 2 Prepare Wall for Installation

rough cutout dimension chart
  • 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 rough cut out dimensions from the chart 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.

Step 3 Make 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 4 Add 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 5 Create A Tunnel Liner Box

  • Create a tunnel liner box using 1/2" plywood.
  • The depth should be 1/8" less than the thickness of the wall.

Step 6 Attach the Tunnel Liner Box

  • Insert the tunnel liner box into the rough cutout opening. Use shims to get the tunnel level and square.
  • Use 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 9 Apply Spray Foam Sealant

  • Use spray foam sealant to fill any gaps around the tunnel box.
  • Once the sealant dries, trim off any excess.

Step 8 Seal the Tunnel

  • Use an outdoor rated paint to seal any exposed wood in the tunnel.

Step 9 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. 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 11 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 to prevent water intrusion.

Step 12 Seal the Outside Frame

  • Apply silicone where the outside frame meets the exterior wall on the top and sides, but leave the bottom open to allow for drainage.

Step 13 Add Home Trim

  • Add trim to the interior frame to suit your home design.
  • Use caulking and paint as desired

FAQ

Warranty

Endura Flap products have a lifetime warranty against defects in materials and workmanship under standard regular use. Damage caused by not using the product as intended, improper installation, and chewing is not covered under this warranty.

Customer Reviews

Customer Reviews
5.0 Based on 1 Reviews
5 ★
100% 
1
4 ★
0% 
0
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
0
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
SM
05/24/2023
Scott M.
United States United States

Customize your pet door installation

This pet door, for wall installation, uses the superior Endura Flap Pet Door frame and flap known for it's quality, energy-efficiency and wind resistance. It allows you to customize the pet door installation to match your home's aesthetics. After installing the inner and outer frames with your custom tunnel, you can trim the frame inside and out to match the personalized look of your home. It's a fun project for those DIYers.

Endura Flap Builder Series Pet Door for Walls
Share   |   Facebook  •  Twitter
Was this helpful?  0    0

Endura Flap Builder Series Pet Door for Walls

Small / Black Edit

Endura Flap Builder Series Pet Door for Walls
  • Small Double Flap: 6"w x 10"h
  • Medium Double Flap: 8"w x 14"h
  • Large Double Flap: 10"w x 18"h
  • Extra Large Double Flap: 12"w x 22"h

Flap Dimensions:

Double Flap:6"w x 10"h

The entry way your dog goes through.

Outer Frame Dimensions

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

Inside: 7 5/8"w x 14 7/8"h

The outer edge of the pet door.
edura small
edura frame
edura roughcut

Rough Cut Out:

9 1/4"w x 16 3/8"h

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

Flap Dimensions:

Double Flap:8"w x 14"h

The entry way your dog goes through.

Outer Frame Dimensions

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

Inside: 9 5/8"w x 18 7/8"h

The outer edge of the pet door.
edura small
edura frame
edura roughcut

Rough Cut Out:

11 1/4"w x 20 3/8"h

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

Flap Dimensions:

Double Flap:10"w x 18"h

The entry way your dog goes through.

Outer Frame Dimensions

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

Inside:11 11/16"w x 22 7/8"h

The outer edge of the pet door.
edura small
edura frame
edura roughcut

Rough Cut Out:

13 3/8"w x 24 3/8"h

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

Flap Dimensions:

Double Flap:12"w x 22"h

The entry way your dog goes through.

Outer Frame Dimensions

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

Inside: 13 3/4"w x 26 7/8"h

The outer edge of the pet door.
edura small
edura frame
edura roughcut

Rough Cut Out:

15 3/8"w x 28 3/8"h

The size of the hole needed to fit your pet door into your wall.
Flap SizeFlap DimensionFlap StyleRough Cut OutOuter Dimensions for Inside FrameOuter Dimensions for Outside FrameRecommended Pet Height
Small6" w x 10" hDouble9 1/4" w x 16 3/8" h7 5/8"w x 14 7/8"h

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

8" - 14"
Medium8" w x 14" hDouble11 1/4" w x 20 3/8" h9 5/8"w x 18 7/8"h12 3/16"w x 20 3/4"h8" - 21"
Large10" w x 18" hDouble13 3/8" w x 24 3/8"11 11/16"w x 22 7/8"h14 3/16"w x 24 3/4"h8" - 27"
Extra Large12" w x 22" hDouble15 3/8" w x 28 3/8" h13 ¾"w x  26 7/8"h

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

8" - 34"

Single flap or double flap? This is the double flap version. The double flap 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.

Find The Best Pet Door Size For My Pet

calculator.jpg

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Installation Instructions

installation video image
Installation icon Printable Version
Installation icon Difficulty High
Installation icon Steps 13
Installation icon Time Required 2-3 hours
Installation icon Sections 04
Installation icon Flags 02

Parts

  • 1 Inside Frame
  • 1 Outside Frame
  • 1 Locking Cover

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.
  • 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 2 Prepare Wall for Installation

rough cutout dimension chart
  • 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 rough cut out dimensions from the chart 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.

Step 3 Make 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 4 Add 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 5 Create A Tunnel Liner Box

  • Create a tunnel liner box using 1/2" plywood.
  • The depth should be 1/8" less than the thickness of the wall.

Step 6 Attach the Tunnel Liner Box

  • Insert the tunnel liner box into the rough cutout opening. Use shims to get the tunnel level and square.
  • Use 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 9 Apply Spray Foam Sealant

  • Use spray foam sealant to fill any gaps around the tunnel box.
  • Once the sealant dries, trim off any excess.

Step 8 Seal the Tunnel

  • Use an outdoor rated paint to seal any exposed wood in the tunnel.

Step 9 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. 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 11 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 to prevent water intrusion.

Step 12 Seal the Outside Frame

  • Apply silicone where the outside frame meets the exterior wall on the top and sides, but leave the bottom open to allow for drainage.

Step 13 Add Home Trim

  • Add trim to the interior frame to suit your home design.
  • Use caulking and paint as desired

FAQ

What is the difference between this door and the Endura Flap Pet Door for Thick Walls?

While both of these doors can be installed into very thick walls, the Endura Flap Pet Door for Thick Walls uses the normal Endura Flap frame. 

Does this come with tunnel tape?

No, you can either buy the tape separately or find your own way to deal your tunnel.  

How difficult is this to install?

This door is meant for advanced DIY-ers and handymen who have their own tools and skills needed to install a doggy door into a wall. 

Warranty

Endura Flap products have a lifetime warranty against defects in materials and workmanship under standard regular use. Damage caused by not using the product as intended, improper installation, and chewing is not covered under this warranty.

Customer Reviews

Customer Reviews
5.0 Based on 1 Reviews
5 ★
100% 
1
4 ★
0% 
0
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
0
Write a Review Ask a Question

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
SM
05/24/2023
Scott M.
United States United States

Customize your pet door installation

This pet door, for wall installation, uses the superior Endura Flap Pet Door frame and flap known for it's quality, energy-efficiency and wind resistance. It allows you to customize the pet door installation to match your home's aesthetics. After installing the inner and outer frames with your custom tunnel, you can trim the frame inside and out to match the personalized look of your home. It's a fun project for those DIYers.

Endura Flap Builder Series Pet Door for Walls
Share   |   Facebook  •  Twitter
Was this helpful?  0    0

Lifetime Warranty
Fast Shipping
100% Secure Checkout
Easy Returns