What pet door size should you buy?

So you need a door for your little pet, but are not sure what size you need?  Deciding which pet door size to buy can be intimidating once you have made that decision to get one.  Hopefully his page will be helpful in figuring this out!  We want to help!

Use the table below to select the right door for your pet.  Various breeds are listed, and general sizes are also shown.

Pet Door Size

Pet Door Dimensions

Suitable For


6” x 7”

Cats, Chihuahua, Yorkie, Pomeranian, Maltese, Papillon


8” x 15”

Beagle, Pekingese, Cocker Spaniel, Poodle, Dachshund


10” x 19”

Labrador, Boxer, German Shepherd, Golden Retriever, Bulldog, Doberman


12” x 23”

Irish Wolfhound, Great Pyrenees, St. Bernard, Rottweiler, Old English Sheepdog, Great Dane

Have more than one pet? Remember to keep in mind the height of the lowest part of the door that your pet must step over to go through the door.  You need to make sure that the step-over height is low for the smaller pet, while the height of the flap should allow the bigger(in size) pet to get through as well.

Obviously these are generalized suggestions resulting from countless variations in breeds.  One simple idea to determine the proper pet door size is to use a cardboard cut out of the same dimensions as the pet door.  Infographic provided by Endura Flap Pet Doors.