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Endura Flap Double Flap Door Mount Pet Door

258 reviews

Endura Flap Double Flap Door Mount Pet Door

258 reviews
Regular price
$369.99
Sale price
$369.99
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  • Best energy-efficient pet door for extreme cold or hot weather
  • Installs into doors 1-3/4" to 2-1/4" thick
  • Weatherproof double flap is ideal for areas with extreme hot/cold climate and strong winds
  • Complete magnetic seal to resist winds up to 50mph
  • Total freedom for you and your pet
  • Comes with a sturdy ABS plastic locking cover 
Extreme Weather Resistance Extreme Weather Resistance
Investment Piece Investment Piece
DIY Installation DIY Installation

Product Details

  • Heavy-duty double flaps with a complete magnetic seal for an unbeatable insulation value and weather resistance 
  • Total weather resistance in temperatures from -40℉ to 110
  • Made to be installed in all types of doors including, but not limited to, solid core doors, hollow core doors, metal doors, storm doors
  • High-quality flap will not warp or crack in the heat and cold  
  • Secure Locking Cover with the strength of 1/16" of steel to block access when needed 
  • Flexible flap swings on a rod at the top to avoid cracking and flexing
  • Double flap design ideal for severe weather conditions 
  • Four sizes available from small for cats to extra large for large dogs  like Great Danes designed to accommodate most breeds
  • Option to add or decrease magnet strength, perfect for training pets or increasing already significant wind resistance

Need help installing? Read our Dog Door for Doors Installation Guide.

There has been lots of discussion as to why the Endura Flap is such a high-performing pet door, but for engineers or those looking for some more technical information here is a 74-page dog door energy efficiency study showing what makes it so special.

Find The Best Pet Door Size For My Pet

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Size Chart

Flap SizeFlap DimensionRough Cut OutOutside Frame DimensionFlap Style
Small6" w x 10" h8 5/8" w x 15" h9 7/16" w x 16" hDouble
Medium8" w x 14" h10 5/8" w x 19 1/8" h11 1/2" w x 20" hDouble
Large10" w x 18" h12 5/8" w x 23 1/16" h13 9/16" w x 24"Double
Extra Large12" w x 22" h14 11/16" w x 27 1/8"15 5/8" w x 28" hDouble

Single Flap or Double Flap? Double flaps would provide more insulation for your home, perfect for climates that experience extreme hot or cold weather. This page is the double flap version, but if you live in a more temperate climate, single flaps would be enough.

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. 

Additional Information

Frame Material

Architectural Extruded Aluminum

Flap Thickness

7/8" (each flap)

Warranty Period

Lifetime

Return Period

90 days

Locking Cover Material

Heavy-Duty Molded ABS

Climate Suitability

Severe-4 Season

Flap Design

Double, Flexible, Insulated Flaps

Ability to Lock Flap

Separate Locking Cover-Loads from Top

Can Be Installed In

Aluminum Door, Hollow Core Door, Metal Door, Solid Core Door, Steel Door

Sealing Value

Very High

Wind Resistance

Very High

Self Framing

Yes

Replacement Flaps Available

Yes

Insulation Value

Very High

Installation icon Difficulty Moderate
Installation icon Steps 11
Installation icon Time Required 1-2 hours
Installation icon Sections 02
Installation icon Flags 04

Parts

  • 1 Installation Template
  • Short Screws
  • Long Screws
  • 4 Screw Covers
  • 1 Installation Magnet
  • 1 Inside Flap Frame with U Tunnel
  • 1 Outside Flap Frame
  • 1 Tube of Silicone
  • 1 Sill Plate
  • 1 Locking Cover

Tools

  • Pencil
  • Drill with 3/8" (9,5 mm) drill bit
  • Level
  • Measuring Tape
  • Jigsaw
  • Phillips head screwdriver
  • Measuring Tape

Please read instructions & notes thoroughly before installation.

Double Flap Door Mount

Step 1 Measure your Pet

  • If you have not yet measured your pet, watch this video to ensure the pet door will work.
  • If possible, remove the door from its hinges using a screwdriver and hammer to tap out the hinge pins. Lay the door flap for installation
  • Tape the provided template to the door. The top edge of the cut-out line should be at least 3" (7,6 cm) above the pet's shoulders.
  • Be careful not to cut too close to the bottom of the door as your may reduce the door's strength
  • Level the top edge of the cut-out line

Step 2 Drill Holes

  • Once you are certain the pet door will work with your door, drill through the holes marked on the template with a 3/8" (9,5 mm) bit
  • Make sure your drill is kept level and drills all the way through the door

Step 3 Trace Template and Cut Door

  • Using a jigsaw, cut along the marked lines, making sure to cut straight.
  • We recommend applying masking tape on the door so the jigsaw doesn’t leave scratch marks.

Step 4 Rest Sill Plate

  • Rest sill plate at the bottom of the cutout with the weather stripping facing up and the outer leg on the outside of the door.

Step 5 Apply Caulking

  • Apply caulking to seal the tunnel to the inside frame on the 3 sides of the U shaped metal tunnel.

Step 6 Check Weatherstripping

  • Ensure the weatherstripping is firmly pressed in the groove on both frames.
  • Weatherstripping ends on the side for the inside frame, while the outside frame has a wide open area at the bottom to allow water to flow outside down the sill plate. Weatherstripping is indicated in red.

Step 7 Position the Frames

  • Place the inside frame with the tunnel on the inside of the door just resting on top of the sill plate weatherstripping.
  • Take the exterior frame and place it on the outside of the door fitting inside the tunnel.

Step 8 Insert the Screws

  • Select appropriate screws and insert them into the pet door from the inside.
  • Do not fully tighten screws until all four screws are inserted and the pet door is leveled.
  • Use the included installation magnet to help align the screws.

Step 9 Tighten the Screws

  • Once the pet door is leveled, tighten the screws so that the frame weatherstripping compresses.
  • Do not overtighten.

Step 10 Insert the Screw Covers

  • Push the four screw covers in by hand to cover the screws.

Step 11 Apply Silicone

  • Apply silicone around the two sides and the top edge of the exterior frame, filling the gap between the frame and the door.

PANELED DOORS

The best way to install the pet door is to have it straddle the recessed area of one of the panels. Have the pet door sit on the flat area in the middle, side, and below the recessed panel. The frame will cross the recessed area on the top, so you will be left with a gap. The easiest way to fill this gap is to get battens or shims from a local hardware store, and cut them to fit. When that gap is mostly filled, caulk the remaining areas to seal the doggy door to the surface of the people door. If the space is very irregular you can also use a squishy foam weather stripping, which will compress down for a tight fit. When finished, use caulking to seal the door.

Videos

Endura Flap Dog Door for Doors Installation Video


Variable Magnetic Resistance


How to Remove Side Magnets for Easier Use


Leaf Blower Test


Durability Test

FAQ

Can I install this door into my glass door?

No, this extra large dog door cannot be installed into single or double pane glass. However, if you have a sliding door, you can get the Thermo Panel 3e, which has the same flap installed into a door insert.

What makes this door so great?

There has been lots of discussion as to why the Endura Flap doggy door is such a high performing pet door, but for engineers, pet supplies enthusiasts, or those looking for some more technical information, here is a 74-page dog door energy efficiency study‚ showing what makes it so special.

Can a large dog & cat use the same double flap door?

Our extra large dog 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 also offset the magnets on the Endura once the flap is installed.

Is this flap flexible?

The Endura Flap is slightly more rigid than other economy-style flaps, but it is a safe, soft, flexible flap

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 lets 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. You will need to purchase a new inner or outer frame with the flap as single flap and double flap frames are built differently.

Why is there a difference in pet door flap size for the single versus the double flap models?

Since each flap is dually 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 of the endura double flap pet doors as they enter or exit.

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
4.7 Based on 258 Reviews
5 ★
76% 
195
4 ★
19% 
49
3 ★
5% 
14
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:
SL
05/14/2022
Steven L.
United States

Great Doggy Door

Easy to install and works great for both our rescue pups. 15-year-old Chihuahua and 65lb American Stafford Shire. We had to get the extra-large door due to how wide the American Stafford is, but still ok for the Chihuahua.

KR
05/05/2022
Kim R.
United States United States

Dog Door

It works great, I would highly recommend this product

TE
04/20/2022
Teresa E.
United States United States

Good Quality Overall with some minor issues

Overall it seems like a good quality product, however, I've been having a few problems with the flaps coming out of their grooves at the top and one of the plastic corner brackets has broken off already.

RR
04/03/2022
Rhonda R.
United States United States

Best dog door for harsh weather

Can't even tell there's a dog door - NO drafts. I would recommend this to anyone.

EW
04/03/2022
Edward W.
United States United States

Awesome

Works great. Only took my dog two days to get adapted to the new door

Endura Flap Double Flap Door Mount Pet Door

Small / White Edit

extra large dog door double flap

Find The Best Pet Door Size For My Pet

A

Pet Height: inches

B

Pet Width: inches

Please fill the above fields.

Flap SizeFlap DimensionRough Cut OutOutside Frame DimensionFlap Style
Small6" w x 10" h8 5/8" w x 15" h9 7/16" w x 16" hDouble
Medium8" w x 14" h10 5/8" w x 19 1/8" h11 1/2" w x 20" hDouble
Large10" w x 18" h12 5/8" w x 23 1/16" h13 9/16" w x 24"Double
Extra Large12" w x 22" h14 11/16" w x 27 1/8"15 5/8" w x 28" hDouble

Single Flap or Double Flap? Double flaps would provide more insulation for your home, perfect for climates that experience extreme hot or cold weather. This page is the double flap version, but if you live in a more temperate climate, single flaps would be enough.

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. 

Frame Material

Architectural Extruded Aluminum

Flap Thickness

7/8" (each flap)

Warranty Period

Lifetime

Return Period

90 days

return period

90 days

Locking Cover Material

Heavy-Duty Molded ABS

Climate Suitability

Severe-4 Season

Flap Design

Double, Flexible, Insulated Flaps

Ability to Lock Flap

Separate Locking Cover-Loads from Top

Can Be Installed In

Aluminum Door, Hollow Core Door, Metal Door, Solid Core Door, Steel Door

Sealing Value

Very High

Wind Resistance

Very High

Self Framing

Yes

Replacement Flaps Available

Yes

Insulation Value

Very High

warranty period

Lifetime

Installation Instructions

Installation icon Difficulty Moderate
Installation icon Steps 11
Installation icon Time Required 1-2 hours
Installation icon Sections 02
Installation icon Flags 04

Parts

  • 1 Installation Template
  • Short Screws
  • Long Screws
  • 4 Screw Covers
  • 1 Installation Magnet
  • 1 Inside Flap Frame with U Tunnel
  • 1 Outside Flap Frame
  • 1 Tube of Silicone
  • 1 Sill Plate
  • 1 Locking Cover

Tools

  • Pencil
  • Drill with 3/8" (9,5 mm) drill bit
  • Level
  • Measuring Tape
  • Jigsaw
  • Phillips head screwdriver
  • Measuring Tape

Please read instructions & notes thoroughly before installation.

Double Flap Door Mount

Step 1 Measure your Pet

  • If you have not yet measured your pet, watch this video to ensure the pet door will work.
  • If possible, remove the door from its hinges using a screwdriver and hammer to tap out the hinge pins. Lay the door flap for installation
  • Tape the provided template to the door. The top edge of the cut-out line should be at least 3" (7,6 cm) above the pet's shoulders.
  • Be careful not to cut too close to the bottom of the door as your may reduce the door's strength
  • Level the top edge of the cut-out line

Step 2 Drill Holes

  • Once you are certain the pet door will work with your door, drill through the holes marked on the template with a 3/8" (9,5 mm) bit
  • Make sure your drill is kept level and drills all the way through the door

Step 3 Trace Template and Cut Door

  • Using a jigsaw, cut along the marked lines, making sure to cut straight.
  • We recommend applying masking tape on the door so the jigsaw doesn’t leave scratch marks.

Step 4 Rest Sill Plate

  • Rest sill plate at the bottom of the cutout with the weather stripping facing up and the outer leg on the outside of the door.

Step 5 Apply Caulking

  • Apply caulking to seal the tunnel to the inside frame on the 3 sides of the U shaped metal tunnel.

Step 6 Check Weatherstripping

  • Ensure the weatherstripping is firmly pressed in the groove on both frames.
  • Weatherstripping ends on the side for the inside frame, while the outside frame has a wide open area at the bottom to allow water to flow outside down the sill plate. Weatherstripping is indicated in red.

Step 7 Position the Frames

  • Place the inside frame with the tunnel on the inside of the door just resting on top of the sill plate weatherstripping.
  • Take the exterior frame and place it on the outside of the door fitting inside the tunnel.

Step 8 Insert the Screws

  • Select appropriate screws and insert them into the pet door from the inside.
  • Do not fully tighten screws until all four screws are inserted and the pet door is leveled.
  • Use the included installation magnet to help align the screws.

Step 9 Tighten the Screws

  • Once the pet door is leveled, tighten the screws so that the frame weatherstripping compresses.
  • Do not overtighten.

Step 10 Insert the Screw Covers

  • Push the four screw covers in by hand to cover the screws.

Step 11 Apply Silicone

  • Apply silicone around the two sides and the top edge of the exterior frame, filling the gap between the frame and the door.

PANELED DOORS

The best way to install the pet door is to have it straddle the recessed area of one of the panels. Have the pet door sit on the flat area in the middle, side, and below the recessed panel. The frame will cross the recessed area on the top, so you will be left with a gap. The easiest way to fill this gap is to get battens or shims from a local hardware store, and cut them to fit. When that gap is mostly filled, caulk the remaining areas to seal the doggy door to the surface of the people door. If the space is very irregular you can also use a squishy foam weather stripping, which will compress down for a tight fit. When finished, use caulking to seal the door.

Videos

Endura Flap Dog Door for Doors Installation Video


Variable Magnetic Resistance


How to Remove Side Magnets for Easier Use


Leaf Blower Test


Durability Test

FAQ

FAQS

Can I install this door into my glass door?

No, this extra large dog door cannot be installed into single or double pane glass. However, if you have a sliding door, you can get the Thermo Panel 3e, which has the same flap installed into a door insert.

What makes this door so great?

There has been lots of discussion as to why the Endura Flap doggy door is such a high performing pet door, but for engineers, pet supplies enthusiasts, or those looking for some more technical information, here is a 74-page dog door energy efficiency study‚ showing what makes it so special.

Can a large dog & cat use the same double flap door?

Our extra large dog 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 also offset the magnets on the Endura once the flap is installed.

Is this flap flexible?

The Endura Flap is slightly more rigid than other economy-style flaps, but it is a safe, soft, flexible flap

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 lets 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. You will need to purchase a new inner or outer frame with the flap as single flap and double flap frames are built differently.

Why is there a difference in pet door flap size for the single versus the double flap models?

Since each flap is dually 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 of the endura double flap pet doors as they enter or exit.

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
4.7 Based on 258 Reviews
5 ★
76% 
195
4 ★
19% 
49
3 ★
5% 
14
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:
SL
05/14/2022
Steven L.
United States

Great Doggy Door

Easy to install and works great for both our rescue pups. 15-year-old Chihuahua and 65lb American Stafford Shire. We had to get the extra-large door due to how wide the American Stafford is, but still ok for the Chihuahua.

KR
05/05/2022
Kim R.
United States United States

Dog Door

It works great, I would highly recommend this product

TE
04/20/2022
Teresa E.
United States United States

Good Quality Overall with some minor issues

Overall it seems like a good quality product, however, I've been having a few problems with the flaps coming out of their grooves at the top and one of the plastic corner brackets has broken off already.

RR
04/03/2022
Rhonda R.
United States United States

Best dog door for harsh weather

Can't even tell there's a dog door - NO drafts. I would recommend this to anyone.

EW
04/03/2022
Edward W.
United States United States

Awesome

Works great. Only took my dog two days to get adapted to the new door

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