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Endura Flap Single Flap Door Mount Pet Door

180 reviews

Endura Flap Single Flap Door Mount Pet Door

180 reviews
Regular price
$249.99
Sale price
$249.99
Unit price
per 
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Black

  • Best energy-efficient pet door for extreme cold or hot weather
  • Installs into doors 1/2" to 1-3/4" thick
  • Weather-resistant flap stays flexible in temperatures as low as -40℉
  • Lined with magnets on three sides to withstand wind up to 50mph
  • Durable aluminum frame won't rust or crack 
  • Includes a sturdy locking cover to block access to the door when needed 
Great for Moderate Climates Great for Moderate Climates
Home-Improvement Must Home-Improvement Must
Moderate Installation Difficulty Moderate Installation Difficulty

Product Details

  • High-quality polyolefin flap with a complete magnetic seal for unbeatable insulation value and weather resistance 
  • Extreme weather resistance in heat and cold for maximum insulation value 
  • Installs in all types of doors including, but not limited to, solid core doors, hollow core doors, metal doors, storm doors  
  • Secure Locking Cover with the strength of 1/16" of steel to prevent unwanted guests from entering through your doggie door
  • Complete Magnetic seal on three sides keeps the flap shut in winds up to 50 mph
  • Four flap sizes available from small for cats to extra-large for big dogs to accommodate most breeds
  • Flexible flap swings on a rod at the top to avoid cracking and flexing
  • Add or decrease magnet strength, perfect for training pets or increasing wind resistance
  • Manufactured in the U.S. 

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

Size Chart

Flap SizeFlap DimensionFlap StyleRough Cut OutOutside Frame Dimension
Small6" w x 11" hSingle8 5/8" w x 15" h9 7/16" w x 16" h
Medium8" w x 15" hSingle10 5/8" w x 19 1/8" h11 1/2" w x 20" h
Large10" w x 19" hSingle12 5/8" w x 23 1/16" h13 9/16" w x 24"
Extra Large12" w x 23" hSingle14 11/16" w x 27 1/8" h15 5/8" w x 28" h

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

Warranty Period

Lifetime

Return Period

90 days

Locking Cover Material

Heavy-Duty Molded ABS

Climate Suitability

Severe-4 Season

Flap Design

Single, Flexible, Insulated Flap

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

High

Installation Instructions

Installation icon Difficulty Moderate
Installation icon Steps 9
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 Flap Frame
  • 1 Trim Frame
  • 1 Tube of Silicone
  • 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.

Single 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 flat 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, make sure the template is level, and mark the outline with a pencil. Remove the template and drill holes through the corners just inside of the lines using a ⅜” (9,5 mm) drill 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 Check Weather-Stripping

  • Ensure the weather-stripping is firmly pressed in the groove on both frames. Weather-stripping indicated in red.

Step 5 Position Frames

  • Place the trim frame on the outside of the door and the flap frame on the inside
  • Trim Frame is exterior frame, Flap Frame is frame with flap & locking cover

Step 6 Select Screws & Insert

  • 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.
  • Do not fully tighten screws until all four screws are inserted and the pet door is leveled

Step 7 Tighten Screws

  • Once the pet door is leveled, tighten the screws so that the weather-stripping compresses and the frames touch the door.
  • Do not over tighten.

Step 8 Insert Hole Plugs

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

Step 9 Apply Silicone

  • Apply silicone where the two frames meet around all four sides.
  • It's also recommended to apply silicone where the outside frame meets the door at the top and sides, leaving the bottom open to allow water to escape.

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 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 doors have 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.

Is a single flap enough for winter weather?

A single Endura Flap is extremely energy-efficient and capable of withstanding winds up to 50 mph. It is the only door that 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 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
4.5 Based on 180 Reviews
5 ★
81% 
146
4 ★
7% 
12
3 ★
3% 
5
2 ★
3% 
6
1 ★
6% 
11
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:
AB
06/28/2022
Andrew B.
United States

Screws were too short

It works however the two sets of 4 screws were too short to accomplish the installation. While my door is metal it is a standard door and the screws provided would not reach. Had to go to hardware store and buy longer ones. At the price of the the product (highest on ones I saw) providing only two sets of screws based on “their standard” is short sighted. The door is installed and works but disappointed it took after market items to make it complete. The door works as advertised, instructions are fine but ones at half the cost would have as well.

SW
06/24/2022
Steven W.
United States United States

Dog door

Fair. The door seems well designed and well made. Assuming that the door flap lasts over time, it would appear to be excellent. It was not clear in the instructions that the inner and outer frames interlock, this made my initial attempts at installation difficult. Once I figured it out. It was a breeze. The dogs are getting used to it, so I am a happy guy.

SL
06/12/2022
Shirley L.
United States United States

Keeps drafts out

Much better than my previous doggy door. The magnets hold the door shut to keep out drafts and rain, but it is not too strong for my dogs to go out. Very pleased.

A Endura Flap® Customer
SD
06/12/2022
Susanna D.
United States United States

Excellent quality

I chose this dog door very carefully to replace an ancient, no-longer-closing dog door in a new door. Our very picky remodeler said, “Wow, some dog doors are just expensive but no good — this one is really high quality.” The only drawback is the tight magnets. We have a size L to fit our 20-pound dogs. The smaller has gotten the hang of it; the bigger, stubborn schnauzer doesn’t want to do it yet, although he didn’t like the old one either!

A Endura Flap® Customer
RE
06/09/2022
Robert E.
United States United States

Way overpriced

It’s a decent-to-good product and does what it says it will. The covering door is not as stout as advertised. Overall, It is staggeringly overpriced. Cut the price by $150 and you begin to get in the ballpark.

Endura Flap Single Flap Door Mount Pet Door

Small / White Edit

white single flap dog door

Flap SizeFlap DimensionFlap StyleRough Cut OutOutside Frame Dimension
Small6" w x 11" hSingle8 5/8" w x 15" h9 7/16" w x 16" h
Medium8" w x 15" hSingle10 5/8" w x 19 1/8" h11 1/2" w x 20" h
Large10" w x 19" hSingle12 5/8" w x 23 1/16" h13 9/16" w x 24"
Extra Large12" w x 23" hSingle14 11/16" w x 27 1/8" h15 5/8" w x 28" h

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

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

Single, Flexible, Insulated Flap

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

High

warranty period

Lifetime

Installation Instructions

Installation icon Difficulty Moderate
Installation icon Steps 9
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 Flap Frame
  • 1 Trim Frame
  • 1 Tube of Silicone
  • 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.

Single 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 flat 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, make sure the template is level, and mark the outline with a pencil. Remove the template and drill holes through the corners just inside of the lines using a ⅜” (9,5 mm) drill 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 Check Weather-Stripping

  • Ensure the weather-stripping is firmly pressed in the groove on both frames. Weather-stripping indicated in red.

Step 5 Position Frames

  • Place the trim frame on the outside of the door and the flap frame on the inside
  • Trim Frame is exterior frame, Flap Frame is frame with flap & locking cover

Step 6 Select Screws & Insert

  • 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.
  • Do not fully tighten screws until all four screws are inserted and the pet door is leveled

Step 7 Tighten Screws

  • Once the pet door is leveled, tighten the screws so that the weather-stripping compresses and the frames touch the door.
  • Do not over tighten.

Step 8 Insert Hole Plugs

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

Step 9 Apply Silicone

  • Apply silicone where the two frames meet around all four sides.
  • It's also recommended to apply silicone where the outside frame meets the door at the top and sides, leaving the bottom open to allow water to escape.

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 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 doors have 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.

Is a single flap enough for winter weather?

A single Endura Flap is extremely energy-efficient and capable of withstanding winds up to 50 mph. It is the only door that 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 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
4.5 Based on 180 Reviews
5 ★
81% 
146
4 ★
7% 
12
3 ★
3% 
5
2 ★
3% 
6
1 ★
6% 
11
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:
AB
06/28/2022
Andrew B.
United States

Screws were too short

It works however the two sets of 4 screws were too short to accomplish the installation. While my door is metal it is a standard door and the screws provided would not reach. Had to go to hardware store and buy longer ones. At the price of the the product (highest on ones I saw) providing only two sets of screws based on “their standard” is short sighted. The door is installed and works but disappointed it took after market items to make it complete. The door works as advertised, instructions are fine but ones at half the cost would have as well.

SW
06/24/2022
Steven W.
United States United States

Dog door

Fair. The door seems well designed and well made. Assuming that the door flap lasts over time, it would appear to be excellent. It was not clear in the instructions that the inner and outer frames interlock, this made my initial attempts at installation difficult. Once I figured it out. It was a breeze. The dogs are getting used to it, so I am a happy guy.

SL
06/12/2022
Shirley L.
United States United States

Keeps drafts out

Much better than my previous doggy door. The magnets hold the door shut to keep out drafts and rain, but it is not too strong for my dogs to go out. Very pleased.

A Endura Flap® Customer
SD
06/12/2022
Susanna D.
United States United States

Excellent quality

I chose this dog door very carefully to replace an ancient, no-longer-closing dog door in a new door. Our very picky remodeler said, “Wow, some dog doors are just expensive but no good — this one is really high quality.” The only drawback is the tight magnets. We have a size L to fit our 20-pound dogs. The smaller has gotten the hang of it; the bigger, stubborn schnauzer doesn’t want to do it yet, although he didn’t like the old one either!

A Endura Flap® Customer
RE
06/09/2022
Robert E.
United States United States

Way overpriced

It’s a decent-to-good product and does what it says it will. The covering door is not as stout as advertised. Overall, It is staggeringly overpriced. Cut the price by $150 and you begin to get in the ballpark.

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