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Home > Cat & Dog Products > Pet Doors

Pet Doors

Today's pet doors offer the ultimate in convenience and are designed to meet a variety of specific needs.

We carry all major brands of cat and dog doors in every available mounting method: door-mount, wall-mount, window-mount and doggy doors for sliding glass doors and screen doors.

Please contact us with any questions you may have about pet doors. Our Customer Service Representatives have an extraordinary depth of knowledge about these products and are available to help you.

See our valuable Tips section for these products!

Browse Pet Doors
Pet Doors by Size
Pet Doors
Shop our many brands and types of pet doors that work best for your size of pet.
Pet Doors by Brand
Pet Doors
Looking for a specific brand of pet door? Find the model and size of door you want quickly right here.
Sliding Glass Door Pet Doors
Pet Doors
Doggy doors for sliding patio doors are full-size panels designed to fit in the inside track of your sliding glass door.
Cat Doors
Pet Doors
Indoor cat doors, window cat doors and more. Available in all sizes; some big enough for small dogs.
Electronic Pet Doors
Pet Doors
Electronic pet doors will either open or unlock automatically when your pet wearing the special collar key approaches.
Doors with Built-In Pet Doors
Pet Doors
All products in this section come with built-in pet doors: exterior doors, storm doors and glass inserts.
Gun Dog & Kennel Pet Doors
Pet Doors
Gun Dog House Doors and other models are tough enough for professional use.
Pet Door Replacement Flaps
Pet Doors
Pet door replacement flaps: Endura Flaps (by Patio Pacific), Ideal Pet Door and PetSafe dog door Replacement Flaps.
Pet Door Keys and Accessories
Pet Doors
Keys, replacement parts, doorbells, and accessories for pet doors.

The first and most important tip we can give you about these products is this: SIZE MATTERS. This is true in two important areas, one of which is often overlooked by consumers.

The size of your pet: It is the size of your pet that counts - not his or her weight -- when you are trying to figure out if the flap entrance is going to be large enough for your 4-legged friend to pass through.

It is confusing, really, that manufacturer's always include weight recommendations with these products. Our advice: ignore weight recommendations.

Instead, you need to measure your pet and then compare the measurements with the exact dimensions of any product you are thinking about purchasing. The last thing you want to do is complete an installation only to find that the flap entrance is too small!

A 100% reliable way to make absolutely sure if the flap entrance is the right size is to cut a hole out of a piece of cardboard that equals the flap size dimensions. If your pet can walk through the hole you cut in the cardboard, then the flap size is correct.

Another great tip for measuring the width of your pet is to open a door just enough for him or her to walk through comfortably. Then measure that space to determine the proper width of the flap entrance.

You would not believe how many people forget to consider whether or not a flap entrance is the right size. Our guess is it's because they are concentrating so hard on...

...The size of the door, wall, screen, or sliding glass door.
This is, of course, an important measurement as well. Determining the correct overall size for a pet door is fairly straightforward when you are installing in a door. Just compare the overall size of the doggy door with the space on the door where you intend to install it.

If you are considering a product for your sliding glass doors, you'll want to be sure it can be accommodated in the track that your slider sits in; is the track wide enough? Generally, if your slider is a single pane, you'll need to get a single pane patio door insert. If your slider is a double pane, you'll need a double pane patio door insert for a snug fit.

It's also important to measure the height of your slider and compare with the height of the product you are considering. Many are adjustable and/or custom made so it's very easy to get one that's the right height for you.

Note: Some patio inserts will not work with vinyl doors. If that is the case it is clearly indicated in the product descriptions you find at PetFrenzy.

If installation is to be through a wall, you'll want to make sure that the wall mount pet door you purchase can accommodate the thickness of your wall.

PetFrenzy customer service representatives are knowledgeable about all of the many, quality brands of pet doors we carry. If you require assistance, or have any questions at all about any product you find on our website (or even if you can't find it) please contact us and we'll be happy to help you. You can call toll free at 1-800-870-1941 from 8:30 to 4:30 EST, or email your questions any time to

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Whether your pet is at home or on the go, you can find that perfect pet product for him at, including a dog carrier, dog crate, pet carrier, pet ramp, dog door, cat bed or dog bed. Browse our large selection of pet gates and dog carriers online, and you're sure to find one that suits you and your pet. All of the products sold at Pet Frenzy are backed by our 100% satisfaction guarantee.