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Dog Doors

Dog doors and doggie doors for every opening in your home: standard doors, walls, sliding glass patio doors, screen doors and windows, plus guillotine doors for kennels. We carry Security Boss (including the insulated, lockable MaxSeal line), PetSafe and Lakeside, in sizes from toy breeds to giant dogs. Prices run from about $35 for a basic flap door to about $900 for an extra-large insulated wall door, and most Security Boss doors fall between about $160 and $450.

Start by picking where the door will go, then compare models below. Measure your dog at the widest point and from the floor to the top of the shoulders before you choose a size. If you rent or don't want to cut, a sliding glass patio panel or window insert sits in the existing track. Need replacement flaps, magnets or a tunnel extension for an older door? Shop dog door parts & accessories.

Not sure which one fits? A real pro will help you measure and pick the right size.Call 737-215-3211 Text a Pro

1. Where will the dog door go?

2. Compare · 27 options

  • A black Security Boss SB4 Pet Screen Door with the screen door partially open, demonstrating its ease of use and pet-friendly design A black Security Boss SB4 Pet Screen Door with the screen panel fully closed, showcasing its secure and durable design for pet access control Sale
    from $155.99
    from $134.99
    Security Boss

    SB4 Pet Screen Door

    Security Boss SB4 Pet Screen Door for Pawsome Adventures Durable and Secure Design Security Boss SB4 Pet Screen Door is built to last, with a sturd...

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  • An open Security Boss Standard Door Mount Pet Door with the white panel fully raised, exposing the entire clear pet door opening A fully closed Security Boss Standard Door Mount Pet Door with a white frame, featuring the Security Boss logo at the top center Sale
    from $230.00
    from $159.99
    Security Boss

    Standard Secure Dog Door

    Give Your Pet the Gift of Safe Exploration Durability and Security Security Boss Standard Door Mount Pet Door is built to last. Made from high-qual...

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  • Security Boss MaxSeal In-Glass Dog Door with dual flaps shown in an open position, providing a clear view of the flexible and durable flaps for pet access Fully closed view of the Security Boss MaxSeal In-Glass Dog Door, displaying its transparent design and secure sealing around the edges Sale
    from $276.16
    from $218.99
    Security Boss

    MaxSeal In-Glass Dog Door

    Your Pet’s Gateway to Adventure Superior Insulation Security Boss MaxSeal In-Glass Dog Door is designed with superior insulation to keep your home ...

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  • A different view of the Security Boss Heavy Duty Storm Pet Door, focusing on the closed door with its secure locking mechanism and heavy-duty construction A closed, white, heavy-duty pet door with the Security Boss Heavy Duty Storm Pet Door logo prominently displayed Sale
    from $220.99
    from $190.99
    Security Boss

    Heavy Duty Storm Dog Door

    Heavy-Duty Protection for Your Beloved Pets Superior Weather Resistance Security Boss Heavy Duty Storm Pet Door is built to handle the toughest wea...

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  • Close-up view of the Security Boss Interior Pet Pass Thru with a clear flexible flap, framed in white, designed to allow pets easy passage between rooms Another close-up image of the Security Boss Interior Pet Pass Thru, focusing on the clear flap and the white frame that blends with interior decor Sale
    from $89.99
    from $59.99
    Security Boss

    Interior Pet Pass Thru

    Security Boss Makes Pet Mobility Effortless Durable Construction Security Boss Interior Pet Pass Thru is built with top-quality materials, making s...

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How to choose a dog door

Three things decide which dog door is right: where it goes, how big your dog is, and how much weather and security protection you need.

1. Pick the install type

Install typeBest forCutting needed?Shop
Door mountWood, steel or fiberglass exterior and interior doorsYes, a hole in the doorDog doors for doors
Wall mountKeeping the door intact, adding a dog door where it's most convenient, large dogsYes, through the wall (a tunnel covers the wall thickness)Dog doors for walls
Sliding glass patio panelRenters and anyone who doesn't want to cutNo, the panel sits in the door trackDog doors for sliding doors
In-glassGlass doors and windows where you want a permanent, clean lookThe door goes into a new pane of glass, usually installed by a glass shopDog doors for doors
Screen doorLetting dogs through a screen door without tearing itCut into the screen onlyDog doors for doors
Guillotine (kennel)Outdoor kennels and dog runs, opened and closed from outsideMounts to the kennel wallDog doors for large dogs

2. Size it to your dog

Measure your dog at the widest point, usually the chest or shoulders, and choose a flap at least a couple of inches wider. Then measure from the floor to the top of the shoulders: once installed, the top of the flap opening should sit a little above that line so your dog doesn't have to duck. Keep the step-over (the bottom of the opening) low enough for your smallest or oldest dog. If you have two dogs, size for the bigger one. Browse large dog doors or small dog doors.

3. Plan for weather

Single flaps let drafts through. In Texas heat or northern winters, look for insulated, multi-flap doors with magnetic seals, such as the Security Boss MaxSeal line or the PetSafe Extreme Weather doors. Weather stripping, high-wind magnets and a draft sealer for sliding glass doors help an existing door seal better. Read how to weatherproof a dog door and the best dog door for cold weather.

4. Plan for security

Choose a door that locks: most Security Boss models include a locking cover or security panel, and patio panels can be locked in the track. A door sized to your dog rather than oversized is harder to get through, and a wall install can go somewhere out of sight. The SB72 line is built bite-resistant for dogs that chew. See how to secure a dog door and how to lock your dog door.

Already have a dog door?

We stock replacement flaps, magnets, weather stripping, security panels, wall tunnel inserts and patio door extensions for Security Boss, Lakeside and PetSafe doors. Shop them all in dog door parts & accessories.

More dog door guides

Dog Doors FAQs

How do I measure my dog for a dog door?

Measure your dog at the widest point (usually the chest or shoulders) and pick a flap a couple of inches wider. Measure from the floor to the top of the shoulders; the top of the installed flap opening should sit a little above that. Keep the step-over low enough for your smallest or oldest dog, and size for the biggest dog if you have more than one.

Can I put a dog door in a sliding glass door without cutting?

Yes. A patio panel dog door fits into the track of your sliding glass door next to the sliding panel, so nothing is cut and you can take it with you when you move. Measure the full height of the track before ordering; extensions are available for taller doors. See dog doors for sliding doors.

Are dog doors a security risk?

A dog door is an opening, so choose one that locks. Most Security Boss models have a locking cover or security panel, and you can lock patio panels in the track. Size the door to your dog rather than larger, and consider a wall install out of view. Read are dog doors safe?

Which dog door is best for extreme heat or cold?

Look for an insulated door with more than one flap and magnetic seals, such as the Security Boss MaxSeal line or the PetSafe Extreme Weather doors. Wall installs with a sealed tunnel also block drafts better than a single flap in a hollow door.

Can I install a dog door in a wall myself?

Most handy owners can. You'll need to locate studs, wiring and plumbing, cut the opening, and fit the tunnel to your wall thickness (trim-to-fit tunnel inserts are available). If you're unsure, a handyman can usually do it in a few hours. See dog doors for walls.

How much does a dog door cost?

Basic flap doors start around $35. Most Security Boss door, wall and patio models run about $160 to $450, and extra-large insulated wall doors reach about $900. Installation, tunnel extensions and glass work (for in-glass doors) are extra.

What's the difference between Security Boss MaxSeal and Standard doors?

MaxSeal doors are Security Boss's insulated, weather-sealed line, built for extreme temperatures. Standard doors cost less and suit milder climates. Both come in door, wall and glass versions; text us your climate and your dog's size and we'll suggest one.

Still have a question? Text a pro at 737-215-3211 or send us a message.