Pet Door Comparison Chart

The most commonly purchased dog door or cat door

The most commonly purchased dog or cat doors is for installation in a door; typically the back door or a side door. This explains why these "door mount" pet doors are the most commonly manufactured. The selection process is correspondingly difficult as there is so much to choose from. A print out of this chart would give you an easy reference to some key characteristics of the various door mount pet doors.

Remember, though, that the single most important factor in pet door design is the flap. Does it seal well? Does it insulate? And so on.

Pet Doors for Doors Comparison Chart

Locking Cover4
Brand NameModel and
Adjust Range
Frame Material2Flap Material3
vs Rigid
Ability to Adjust Flap Resistance
Patio PacificEndura Flap™
for Doors
1/2" - 1 3/4"
Single Flap
1 3/4" - 2 1/4"
Double Flap
1 part hollow flap
also double flap version
Endura Flap Pet Doors Incorporate "Variable Flap Resistance" Many combinations of 1) number of threshold magnets, 2) "carrier" orientation, and 3) threshold version chosen.ABS
Cat Mate & Dog MateCat Mate
0" - 2"PlasticClear Acrylic
1 part flap
NoPegs engage flap
Cat Mate
0" - 2"PlasticRigid
1 part flap
No4-way lock engages flap
CH EnterprisesCat Hole
Inside Use
11/4" - 1 3/4"Bare
PetsafeFreedom Series Self-Framing3/8" - 2"Aluminum extrusionClear, tinted vinyl
1 part flap
Pride Pet DoorDeluxe
Standard Group
N/AAluminum extrusionBlack rubber
2 part flap
Hale Pet DoorHale Security
1.4" - 2"Aluminum extrusionClear vinyl
single or double
Magnets can be added to Hale FlapsLexan
Gun Dog House DoorDog DoorN/AAluminum extrusionPlexiglasNoPoly-
Kennel Group
1 part flap
Magnador Offers "heavy duty" magnet setsKnobs engage
Mason CompanyPickwick
Kennel Group
1 part flap
"Heavy" springs can be substituted for "light" springs and vice-versaNone
Kennel Group
N/AAluminum extrusionPolypropylene
1 part flap
0" - 2"Aluminum extrusionPlexiglas
1 part hollow flap
plus keyed lock

1 A self-framing pet door frame will wrap from the inside of the installation to the outside. Thus, the core of a hollow door or wall is 'framed out' by the pet door making installation considerably easier. Any 'self-framing' pet door will have an adjustment range. Be sure that the thickness of the material you are installing in falls in this adjustment range. If you have a solid wood cored door a self-framing pet door is not required though you may still use one for aesthetic reasons.

2 Plastic framed pet doors are generally less expensive and will not corrode in a salt environment. Metal framed pet doors are more strongly built. Metal extrusions are stronger than stampings.

3 Two-part flaps consist of a central flap with an additional U-shaped gasket piece that overlaps the flap and frame on one side. As these tend to be heavier than the single flap doors, they can be expected to be somewhat more wind-resistant. As well, they would be less suitable for sharing between different sized pets (large dog and a cat, for example). A 'double' flap, by contrast, would consist of two separate flaps separated by a dead-air space for improved insulation and wind resistance.

4 Separate locking covers are required when the flaps are flexible. Rigid flap pet doors usually incorporate a locking mechanism in the frame which engages the flap. Some rigid flap pet doors offer a 4-way locking device.

6 Some companies produce a pet door primarily intended for cats. They tend to be more square in shape (lower aspect ratio) than a more conventional size and, so far, they all have rigid flaps. We've never heard a cat express an opinion one way or the other; but these are very popular among cat owners.