Free U.S. Shipping and Limited Lifetime Warranty For Endura Flap Pet Doors

Sizes for All Pets

SmallMediumLargeXLXXL
Breed sizeSmallMediumLargeExtra LargeGiant
Flap size (W × H)6″ × 11″8″ × 15″10″ × 19″12″ × 23″14″ × 27″
Max shoulder heightUp to 18″Up to 22″Up to 27″Up to 31″Up to 37″
Minimum weight10 lbs20 lbs20 lbs30 lbs50 lbs
Example breeds
  • Cocker Spaniel
  • Beagle
  • Jack Russell Terrier
  • Cavalier King Charles Spaniel
  • King Charles Spaniel
  • French Bulldog
  • Pit Bull
  • Schnauzer
  • Bulldog
  • Basset Hound
  • Corgi
  • Blue Heeler
  • Rottweiler
  • Boxer
  • German Shepherd
  • Labradoodle
  • Collie
  • Goldendoodle
  • Great Dane
  • Mastiff
  • Doberman Pinscher
  • Greyhound
  • Newfoundland
  • Rottweiler
  • Great Dane
  • Mastiff
  • Great Pyrenees
  • Saint Bernard
  • English Mastiff

Pet Doors for Walls

Example product used: Endura Flap Wall Mount Pet Door

Flap Dimensions:

6"w x 11"h

The entryway your dog goes through.

Outside Frame Dimensions

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

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

Rough Cut Out:

8 5/8" w x 15" h

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

Flap Dimensions:

8"w x 15"h

The entryway your dog goes through.

Outside Frame Dimensions

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

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

Rough Cut Out:

10 3/8" w x 19" h

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

Flap Dimensions:

10"w x 19"h

The entryway your dog goes through.

Outside Frame Dimensions

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

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

Rough Cut Out:

12 1/2" w x 23 1/16" h

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

Flap Dimensions:

12"w x 23"h

The entryway your dog goes through.

Outside Frame Dimensions

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

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

Rough Cut Out:

14 11/16" w x 27 1/16" h

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

Flap Dimensions:

14"w x 27"h

The entryway your dog goes through.

Outside Frame Dimensions

18 1/4" w x 32 7/8" h

The outer edge of the pet door.
Endura flap dimensions
Endura frame dimensions
Endura rough cut

Rough Cut Out:

16 13/16" w x 31 3/16" h

The size of the hole needed to fit your pet door into your wall.
Flap SizeFlap DimensionRough Cut OutOutside Frame DimensionRecommended Pet Height
Small6" w x 11" h8 5/8" w x 15" h10 1/8" w x 16 3/4" h8" - 14"
Medium8" w x 15" h10 3/8" w x 19" h12 3/16" w x 20 3/4" h8" - 21"
Large10" w x 19" h12 1/2" w x 23 1/16" h14 3/16" w x 24 3/4"8" - 27"
XL12" w x 23" h14 11/16" w x 27 1/16" h16 1/4" w x 28 7/8" h8" - 34"
XXL14" w x 27" h16 13/16" w x 31 3/16" h18 1/4" w x 32 7/8" h8" - 41"

Single flap or double flap? 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. The single flap version will feature a trim frame for the exterior, and a flap frame for the interior, keeping the view from inside your home more aesthetically pleasing. 

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 sizes greater than medium, or any of the double flap versions, for cats.

Pet Doors for Sliding Doors

Example product used: Endura Flap Thermo Panel 3e

Flap Dimensions:

6"w x 11"h

The entry way your dog goes through.

Overall Panel Width

10 3/16"

How wide your panel is.
flap dimensions
epanel width
step over height

Step-Over Height

3" - 4-1/2"

The distance from the bottom of the panel to the bottom of your flap.

Flap Dimensions:

8"w x 15"h

The entry way your dog goes through.

Overall Panel Width

12 1/4"

How wide your panel is.
flap dimensions
epanel width
step over height

Step-Over Height

3" - 4-1/2"

The distance from the bottom of the panel to the bottom of your flap.

Flap Dimensions:

10"w x 19"h

The entry way your dog goes through.

Overall Panel Width

14 1/4"

How wide your panel is.
flap dimensions
epanel width
step over height

Step-Over Height

3" - 6"

The distance from the bottom of the panel to the bottom of your flap.

Flap Dimensions:

12"w x 23"h

The entry way your dog goes through.

Overall Panel Width

16-3/8"

How wide your panel is.
flap dimensions
epanel width
step over height

Step-Over Height

3" - 6"

The distance from the bottom of the panel to the bottom of your flap.

Flap Dimensions:

14" w x 27" h

The entry way your dog goes through.

Overall Panel Width

18-3/8"

How wide your panel is.
flap dimensions
epanel width
step over height

Step-Over Height

3" - 7.5"

The distance from the bottom of the panel to the bottom of your flap.
Flap SizeFlap DimensionStep Over RangeOverall Panel WidthRecommended Pet Height
Small6" w x 11" h3" - 4-1/2" (ships at 3")10-3/16"9" - 15"
Medium8" w x 15" h3" - 4-1/2" (ships at 3")12-1/4"9" - 21"
Large10" w x 19" h3" - 6" (ships at 4-1/2")14-1/4"9" - 27"
Extra Large12" w x 23" h3" - 6" (ships at 4-1/2")16-3/8"9" - 34"
XX Large 14" w x 27" h 3" - 7.5" (ships at 6") 18-3/8" 9" - 41"

Note: Endura Flap is not recommended for kittens or very small dogs.

 

Important Information about Custom Heights

Custom Height Minimum & Maximum Heights
ModelMinimumMaximum
Small 35"100"
Medium 42"107"
Large 48"117"
Extra Large 46"123"


Custom orders are final sale once built. They are essential in two situations:

While most sliding glass door track heights are in the three standard height ranges offered, some are not. In those cases, we can build a Thermo Panel 3e in a custom height to fit your specific dimension. 

The second situation is when you have a side-sliding window. A sliding window is essentially a miniature sliding glass door, and you can install a custom height panel, provided the window track is at least 1" wide.

Pet Doors for Standard Doors

Example product used: Endura Flap Door Mount Pet Door

Flap Dimensions:

6"w x 11"h

The entry way your dog goes through.

Outside Frame Dimensions

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

The outer edge of the pet door.

edura small
edura frame
edura roughcut

Rough Cut Out:

9 1/4"w x 15 1/8"h

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

Flap Dimensions:

8"w x 15"h

The entry way your dog goes through.

Outside Frame Dimensions

12 1/8"w x 20 13/16"h

The outer edge of the pet door.

edura small
edura frame
edura roughcut

Rough Cut Out:

11 5/16"w x 19 3/16"h

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

Flap Dimensions:

10"w x 19"h

The entry way your dog goes through.

Outside Frame Dimensions

14 3/16"w x 24 13/16"h

The outer edge of the pet door.

edura small
edura frame
edura roughcut

Rough Cut Out:

13 3/8"w x 23 3/16"h

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

Flap Dimensions:

12"w x 23"h

The entry way your dog goes through.

Outside Frame Dimensions

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

The outer edge of the pet door.

edura small
edura frame
edura roughcut

Rough Cut Out:

15 1/2"w x 27 3/16"h

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

Flap Dimensions:

14" w x 27" h

The entry way your dog goes through.

Outside Frame Dimensions

18-1 ⁄ 4" w x 32-7 ⁄ 8" h

The outer edge of the pet door.

edura small
edura frame
edura roughcut

Rough Cut Out:

17-1 ⁄ 2" w x 31-1 ⁄ 4" h

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

Flap SizeFlap DimensionRough Cut OutOutside Frame Dimension Recommended Pet Height
Small6" w x 11" h 9 -1 ⁄ 4" w x 15-1 ⁄ 8" h10-1 ⁄ 8" w x 16-3 ⁄ 4" h8" - 14"
Medium8" w x 15" h11-5 ⁄ 16" w x 19-3 ⁄ 16" h12-1 ⁄ 8" w x 20-13 ⁄ 16" h8" - 21"
Large10" w x 19" h 13-3 ⁄ 8" w x 23-3 ⁄ 16" h14-3 ⁄ 16" w x 24-13 ⁄ 16" h8" - 27"
XL12" w x 23" h15-1 ⁄ 2" w x 27-3 ⁄ 16" h16-1 ⁄ 4" w x 28-7 ⁄ 8" h8" - 34"
XXL14" w x 27" h17-1 ⁄ 2" w x 31-1 ⁄ 4" h18-1 ⁄ 4" w x 32-7 ⁄ 8" h8" - 41"

Pet Doors for Windows

Example product used: Thermo Sash 3e Pet Door for Sash Windows

Flap Dimensions:

6"w x 11”h

The entry way your dog goes through.
flap dimensions
Height To Raise Window

Height To Raise Window

18 1/2"

How high you must raise your window in order to fit the panel into the track.

Flap Dimensions:

8"w x 15"h

The entry way your dog goes through.
flap dimensions
Height To Raise Window

Height To Raise Window

22 1/2"

How high you must raise your window in order to fit the panel into the track.

Flap Dimensions:

10"w x 19"h

The entry way your dog goes through.
flap dimensions
Height To Raise Window

Height To Raise Window

26 1/2"

How high you must raise your window in order to fit the panel into the track.

Flap Dimensions:

12"w x 23"h

The entry way your dog goes through.
flap dimensions
Height To Raise Window

Height To Raise Window

30 1/2”

How high you must raise your window in order to fit the panel into the track.
Flap SizeFlap DimensionHeight To Raise WindowRecommended Pet Height
Small6" w x 11" h18 1/2"9" - 15"
Medium8" w x 15" h22 1/2"9" - 21"
Large10" w x 19" h26 1/2"9" - 27"
Extra Large12" w x 23" h30 1/2"9" - 34"

For your adjustment range, you need to measure the length of your sash window track from the furthest left to right. The adjustment range of your pet door should ideally have your track length in the middle. Custom orders are subject to special restrictions. The following adjustment ranges are available:

  • 22"– 25"
  • 25"– 28"
  • 28"– 31"
  • 31"– 34"
  • 34"– 37"
  • 37"– 40"
  • 40"– 43"