Endura Flap Double Flap Door Mount Pet Door (Ships From Canada)

- Best energy-efficient pet door for extreme cold or hot weather
- Installs into doors 4.45cm to 5.72cm 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

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 „‰/-40 „ƒ to 110 „‰/43 „ƒ
- 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 0.16cm of steel to block access when needed
- Flexible flap swings on a rod at the top to avoid cracking and flexing
- Double flap design is 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
Installation Instructions
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 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

- Tape the provided template to the door. The top edge of the cut-out line should be at least 7.6 cm above the pet's shoulders.
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 9.5 mm bit
Step 3 Trace Template and Cut Door

- Using a jigsaw, cut along the marked lines, making sure to cut straight.
Step 4 Rest Sill Plate

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.
- Use the included installation magnet to help align the screws.
Step 9 Tighten the Screws

Step 10 Insert the Screw Covers

Step 11 Apply Silicone

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 2.22 cm 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 2.54 cm 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

Installation Instructions
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 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

- Tape the provided template to the door. The top edge of the cut-out line should be at least 7.6 cm above the pet's shoulders.
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 9.5 mm bit
Step 3 Trace Template and Cut Door

- Using a jigsaw, cut along the marked lines, making sure to cut straight.
Step 4 Rest Sill Plate

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.
- Use the included installation magnet to help align the screws.
Step 9 Tighten the Screws

Step 10 Insert the Screw Covers

Step 11 Apply Silicone

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 2.22 cm 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 2.54 cm of space a the top of the Endura double flap pet doors as they enter or exit. |