Sliding Glass Door

Single Flap Vs. Double Flap

Single Flap: Dragon single flap options are ideal for temperate climates. It is also a good option for very timid pets who may shy away from a double flap.

Double Flap: Dragon single flap options are ideal for moderate climates. The space between the two flaps creates an insulating air buffer for improved energy efficiency.

Can’t decide between a single or double flap? Every Dragon pet door model can be easily converted from single to double flap with a few easy steps. You can start out with a single flap and upgrade to a double flap at any time by installing an Additional Dragon Flap. 

Aluminum Vs. Vinyl Panels

How to Determine if Your Slider Frame is Vinyl or Aluminum:

• Tap the frame: An aluminum sliding patio door will sound metallic while a vinyl one will make a dull, plastic noise.
• Measure Track Width: Vinyl tracks are often slightly wider than aluminum. Aluminum tracks are generally 1” wide while vinyl tracks are about 1.5” wide.

Aluminum Panels: Aluminum Dragon panels fit aluminum doors with tracks at least 1” thick. They will fit vinyl doors with tracks at least 1” thick too, however, since vinyl doors generally have wider tracks the panel may wobble a bit.

Vinyl Panels: The Dragon Vinyl Panel is designed to fit in vinyl-framed sliding doors with tracks at least 1” thick. The vinyl pet door panel framing will match your existing slider for an aesthetic look. Vinyl is also excellent for cold weather, as it resists the “sweating” (condensation buildup) that aluminum can be prone to in cold climates.

How to Measure Track Height

It’s important that you make sure your Dragon pet door panel fits your sliding door before you purchase it, which means you’re going to need to measure your sliding door’s track height. To measure your patio sliding door’s track height, use a tape measure to find the distance from your bottom track to your upper track.

Start from the deepest point in the lower track and measure up to the deepest point in the upper track, as this is where the panel will sit. You will also need to use the tape measure to find the width of your track, which needs to be at least 1” for aluminum panels and at least 1.5” for vinyl panels.

Locking & Security

Locking the Flap: All Dragon Pet Door models come with a sturdy thermoplastic Locking Cover to block access to the pet door as needed. The locking cover keeps neighborhood critters out of your home and allows you to lock the flap at night or when you’re away. 

Locking the Panel: Dragon slider inserts come with a clamp lock that attaches to the flange of the track at the edge of the sliding door panel. This clamp securely locks the slider to prevent access while you’re away. When you want to open your door, simply remove the clamp lock. For additional security, we recommend a wooden dowel or Charley Bar. The Charley Bar can be unlocked in a matter of seconds to open your sliding door.

How to Measure Your Pet

Measuring your pet is crucial to choosing the right door for your pet’s safety and comfort. To find your dog’s shoulder height measure from the floor to the top of their withers. The step-over height should be as low as possible for comfortable use by your pet, especially as they grow older. You can use the formula below:

Step Over + Flap Height = At least 1" Taller than Your Dog’s Shoulder Height.

Features of the Dragon Pet Door

Dragon doors are ideal for budget-friendly pet parents who do not want to sacrifice quality for cost. Dragon pet doors come in a variety of models to install anywhere in your home. Allowing your pet the freedom to come and go frees up your time spent playing doorman to them. Check out what makes Dragon doors so great to learn more.

Insulating Flap Design: Dragon flaps have a two-piece design with a main inner flap and an outer U-shaped piece. This creates a complete seal over the pet door opening to keep the elements out of your home. The flap is lined with magnets that keep it shut against the wind. 

Excellent UV Protection: All parts of the Dragon pet door contain a UV-resistant additive to protect the pet door from sun exposure. This minimizes the warping, yellowing, and fading caused by UV rays.

Safe & Secure: Every Dragon pet door comes with a secure locking cover to block the flap when need and keep intruders out.

Flexible Flap Design: The translucent polyolefin elastomer flap is easy for pets of all sizes and temperaments. The flexible flap won’t catch or pinch your pet’s skin as they’re using the door.

Frequently Asked Questions

What does flap dimension mean?

The flap dimension is the size of the opening in the pet door frame. As pictured below, the main inner flap covers the opening of the door. The outer U-shaped piece extends past the edges of the opening to improve weather resistance.

How can I lock my Dragon Pet Door at night?

You can use the included locking cover to lock your dragon pet door at night or when you’re away.

What size Dragon panels are there?

Dragon panels will fit doors from 74.75” to 93.25” depending on which panel height adjustment range you choose.

Can dogs and cats share a Dragon pet door?

Yes, the flap is light enough that dogs and cats can share the pet door. Just make sure to choose a pet door size that fits all of your pets comfortably.

Are there replacement flaps for Dragon pet doors?

Yes, you can purchase replacement or additional flaps here.

What if the standard panel sizes won't fit my track?

We have a few custom Dragon panel options for irregular track heights. Check out the custom single-flap aluminum sliding door panel. For a more insulating option, see the custom double-flap aluminum sliding door panel.