VEVOR Dog Door for Sliding Glass Door, 75 7/8" to 80 11/16" Adjustable Height, Aluminum Alloy Frame with Flap, Lock Design, for Large-Sized Dogs, 180° Swing-Open Sliding Glass Pet Doors

Dog Door Insert for Sliding Glass Door Built for Large Pets Up to 100 lbs

Large dogs now have a special way to get in and out of the house, thanks to this dog door insert for sliding glass doors. The flap is 10 1/4 inches wide and 16 1/4 inches tall, and it can support pets weighing up to 100 pounds. Big breed dog owners can finally get a pet door that fits their dog's size instead of forcing them through a small opening. The aluminum alloy frame strengthens the flap area, so it can handle daily nose nudges, paw pushes, and in-and-out movement.

There is no change to the sliding glass door itself, as the flap is within a full sliding door frame. This feature means that dogs can walk right through. Renters keep their original door, and homeowners do not have to make any permanent cuts. The large flap opening also lets several pets of different sizes use the same door without having to squeeze or hesitate at the threshold every time they go through.

Adjustable 75 7/8″ to 80 11/16″ Frame Height for a Custom Fit

VEVOR makes this insert adjustable from 75 7/8 inches to 80 11/16 inches. This is because sliding glass doors are not all the same. With a turn of the knob, you can set the door to the exact height you need. This feature closes any gaps that could let in drafts, bugs, or water. Because it can be adjusted, the same unit can fit many different standard patio door frames without needing to be cut or shimmed.

You slowly extend the frame until it fits snugly against the track of your current door, and then you lock it in place. The tempered glass window above the flap lets natural light into the room. Unlike a solid panel, which would block your view and make the room darker, this insert does neither. Even when the seasons change and materials slightly expand or contract, the fit stays the same.

180° Swing-Open Flap for Effortless Two-Way Access

This dog door insert for sliding glass doors has a flap that can swing open 180 degrees, either inward or outward. When you are moving furniture, carrying groceries, or moving anything else large-sized through the doorway, that range is important because you can push straight through without awkwardly going around a fixed panel. It is also beneficial for your dog because it can easily push the flap open in either direction.

This swing design also makes it less likely that someone will bump into the flap as they walk by, since it moves rather than remains stationary. That flexibility keeps daily movement smooth, rather than adding another obstacle for homes with kids, multiple pets, or heavy foot traffic near the patio door.

High-Density Felt Weatherstripping for Draft-Free Comfort

VEVOR uses high-density felt weatherstripping on both the inside and outside of the frame to close the gaps that form around sliding door inserts. This seal prevents hot air from entering during the summer and cold air during the winter. This feature keeps the indoor temperature more stable year-round. Your heating and cooling system does not have to work as hard because there are fewer drafts near the patio door.

Weatherstripping also helps keep dust and other small things from getting in around the frame's edges and blocks out outside noise. Since the felt covers both sides of the insert, it seals against both the door track and the sliding panel. This feature covers the two most common places where leaks happen when installing an aftermarket pet door.

Metal Hinge Flap Built for Frequent, Heavy-Duty Use

As a large dog walks around all day, weak plastic hinges break quickly. That is why VEVOR made this flap with high-quality metal hinges instead. With that upgrade, the flap can swing through hundreds of openings without sagging, cracking, or coming loose from the frame. Metal hinges are strong enough to handle dogs that go in and out of the door a lot.

The PVC flap material stays flexible no matter the temperature outside; it will not get stiff in the winter or bend in the summer. Coupled with the metal hinges, this dog door insert for sliding glass door can handle the kind of heavy, frequent use that destroys cheaper flap designs in just a season.

No-Drill Dog Door Insert for Sliding Glass Door with Turn-Knob Setup

During installation, there is no drilling at all. You put the insert into the track of your current sliding door, use the knob to raise it to the right height, and then lock it in place. You do not need any tools to drill holes in your door frame or make permanent changes to your home. This dog door insert for sliding glass door works well for renters who need to set it up temporarily, as well as for homeowners who do not want to drill.

There is no extra step in the assembly process to attach the flap once the frame is in place. Instead of putting together a frame and flap one at a time, you install the whole thing at once. This feature makes setup much easier and faster; most people can do it in less than an hour.