It did fit lengthwise but could not use the brackets to secure the fit on my frame. The top spring fit piece is what holds this unit place with using backer rod foam I had on hand which I put on one side of unit(wall side) to keep centered on track. My dogs do love it after about three days of learning how to go in and out of the dog door!

[This review was collected as part of a promotion.] This couldn't come fast enough. We have 3 dogs always wanting to go in and out. We visited a friends recently and they had this door. Since we have purchased no more constant up and downs with letting the pups out. Great quality

Easy to install. Dogs love it and so do I. Makes life easier !!

Two of the interior springs broke/fell out/became dislodged at both the top and bottom of the door after only 2 years of regular use - door is now useless.

And a slight 5 mile an hour breeze blows the door open with ease. The sweep only lasted a day before the glue died leaving yet more gaps on the backside, that was AFTER adding more weatherstripping.

I’ve used your regular dog doors for over a decade and loved them. I specifically bought your patio dog door because of those experiences. I was really disappointed. - Opening up the package, the rubber window seal was just loosey goosey in the box, completely unraveled with no bag. This kinked the middle. I was still able to install it to the door. 24 hours later, the rubber is lying on the floor. The adhesive strip was still on the door, so it wasn’t an install problem. Your rubber peeled away from Your pre-installed glue strip. Then I had to peel that glue off and use a solvent to clean up the mess. This is a material incompatibility problem. - The instructions for install aren’t clear. Bad verbiage and poor pictures. More pictures/diagrams would be highly recommended for all aspects. A UX designer would have fixed this. - Once I got the door in the frame, I realized there’s a visible gap between the sliding door and the panel. You offered no weatherproofing. When I went to your YouTube channel about the install, just in case I messed up (I didn't, again, poor instructions), YOUR video also shows a sizable gap with light coming through. There are several comments asking about this. Your replies basically say: sorry, go buy some weather stripping. - The lock mechanism is a joke. This essentially renders the sliding aspect of a sliding door useless. In order to open the door, you have to bend over and pull a pin out. So much for usability and accessibility. Didn’t you do user-testing? - Even with your lock, there is no pressure to hold the door tight against the dog panel. I have to use the broomstick method, also recommended by other disappointed users in the comments. Yo… what happened here?

The sliding glass door insert is alright, but whenever we their is winds, the flap keeps blowing open letting heat and AC out. Stronger magnets should be used to avoid this issue. Would make the door more energy efficient and save customers money from heat and AC loss. I have the extra large door.