PetSafe Doggy Door for Sliding Glass Doors, Adjustable Height 75 7/8" to 81", No-Cut DIY Install, Aluminum Panel, Ideal for Renters, for Medium Dogs Up to 40 lb., (White, Medium)

I recently (3/2014) purchased this product after wanting one for several years for my dogs, and just got the installation finished. The product arrived as described, and was packed well. Fair warning - this product requires a custom installation on each home, and will require adjustment to eliminate gaps between the existing sliding door and the pet door. I'd call it a moderately difficult installation for a "weekend warrior" home DIY person (I do most of my own repairs around the house, i.e. install a new dishwasher, fix all the plumbing, etc, but don't put in new floors/tile, work on AC/heating, do drywall work).I found Charlie the Pug (5/2/12) and Dave's (6/18/2010) reviews useful for assistance with installation. Some changes to what they did in order to eliminate the gap between my sliding glass door and the pet door. I used Frost King White Rubber Foam Weather seal ¾" wide 7/16" thick 10 foot long roll for both sides of the pet door. I put it between the pet door and the sliding door frame (the part that you will never see), and between the sliding door and the pet door. I tried the EPDM Rubber weather seal that Charlie the Pug mentions, and found the Foam to work better. I suggest picking up both and using your intuition when installing. I also put three screws at the top and bottom of the pet door from the sliding door frame into the pet door instead of the 1 that the installation instructions mentioned. This made the door much more solidly fixed to the frame. I then put two screws on the frame side as the instructions mentioned (one 12" below the height adjuster and the other 1" above the pet door).One major change that I made from the installation instructions was not putting the dog door bottom around the sliding door track. The bottom of the dog door has a semi-circular cut out to fit over the track that your sliding door runs on. I put the dog door between the front lip of the frame and this track so that the pet door sits as close inside of the track as possible. I found that this made the inside edge of the dog door flush with inside edge of my sliding door, and also made it much more stable since it was tightly fit between the frame and the track. Other style sliding doors may not accommodate the pet door like this, but I found it helped me out.In order to eliminate the gap, I needed compression between the pet door and the sliding door. In order to achieve this, I went with a cam action sash lock that can be bought from my home improvement stores. The one I bought was from Home Depot (http://www.homedepot.com/p/Prime-Line-Cam-Action-Window-Sash-Lock-U-9925/100166499?N=c3hcZ5yc1v). After the sash lock engages, the handle turns another 90 degrees, which provides compression between the two pieces. Brilliant! It took me 2.5 hours working solidly to eliminate the gap before I found this gem, and then my gap was gone! It also is an effective lock, as the sash lock they provide with the dog door is kind of wimpy. Because I am security minded, I also bought a security bar designed for small sliding door gaps ([...]). I have not tried this yet, but think it will be a nice addition to the sash lock for compression (eliminate gap) and security. Please note: the sash lock only eliminates the gap when it is engaged, so if I have the door unlocked, there is still a small gap between the dog door and the sliding door. I can live with this small gap, and do not really keep my sliding door unlocked unless I am going in/out of it.The dog door includes a plastic panel to put in as a security measure, and it seems solidly built. There are tracks on both sides of the flap to put the security panel. I think I may pick up a second to put on the outside for use in the winter to add an extra layer of insulation between my house and the cold midwest winters.Some other suggestions: the screws they provide are pretty weak. I broke several while installing. Got fed up and went to Home Depot and bought better screws that wouldn't break. Follow Dave's suggestion about the sweep between the sliding glass door and the stationary glass door, it helps to have some overlap. Be persistent in installing this door, as it is very useful and a good price. My dogs now love it, and I feel like I conquered Mt. Everest by eliminating that small little gap between the sliding door and the dog door.For sizing: I bought the Large/Tall. One dog is 67 pounds, lab/pit bull mix, who has 10.5" between the floor and his chest/belly (rise). His withers are like 21". The other dog is 58 pound lab/boxer mix, who has 10" between the floor and her chest/belly, and has 20" withers. Both dogs go through the door with ease, and the extra height of the tall riser (8.5" on the large/tall door versus 4.5" with just the Large door) looks like it would make a huge difference for them using it.Hope you enjoy

I was a little overwhelmed when the box arrives. In order to install this door you need to have a familiarity with an electric drill. A second pair of of hand is also very helpful.The basic installation is pretty straightforward: position the door in the opening, make sure the door is level and straight, and then using the included hardware mount the brackets to the dog door. The kit includes weather stripping a door weep. It took us a little trial and error to get the door to line up correctly with the sliding glass door, so we had to buy some more weather stripping.So if you're not very handy (like me), you'll want reinforcements for this project. It can be difficult to line the door up, make the holes in the right places for the locking pin, etc. But when you're done, the door is fantastic! The door works beautifully with the decor, it is relatively air-tight, and most importantly it makes life with for my Basset Hound a little easier.First, the door itself works well with house. The trim matches perfectly and the glass above the doggy door looks beautiful. I like that the locking pin keeps the sliding glass door secure. The window lets in the light that we loved from the sliding door. The glass door is still functional for the family when we want to use the back yard. We can even still use the screen door if we want fresh air in the house.When the wind is blowing hard and gusting, the door includes a plastic panel that allows you to lock the doggy door (which also keeps the wind out). Getting the door to line up correctly is critical and relatively hard to do. If you can see daylight between the sliding door and the doggy door insert, try to adjust your sliding door, the doggy door, or the weather stripping. After several attempts we did get a very good seal.Finally, and most importantly, this was a critical addition for our hound. I work full time. Sometimes, I am able to get someone to come to the house to let him out, but sometimes I can't. I had always felt a little guilty leaving him in the house all day. But now he's getting older and sometimes has to take Prednisone. The prednisone does wonders for his skin condition, but it makes him have to go to the bathroom every five minutes!It wasn't fair to him to be trapped inside (and the weather here doesn't allow him to be outside...plus he would be unhappy with being banished). So I was shopping on Amazon and found this door. It has made life easier for both me and my Basset. He can go lay in the sun on nice afternoons while I'm at work and go to the bathroom as often as he wants. I can work without trying to duck out early because of the dog.One final note; I got the "Large" door which is perfect for Basset hounds. My brother's corgis also love it. My friend's boxer has to duck a little to get through, but it hasn't slowed him down.

Excellent price for the better-than-expected quality. Simple spring-loaded installation. Once inserted into track, and after you are satisfied with the fit, the instructions have you drill four 7/64" holes in this doggy door's frame to prevent it from coming lose. No holes are required in your sliding door track, though you could do so to increase the security and fit, if you want or need it. I am very happy with the sturdiness, quality and fit, even though I did not permanently mount it in the house I'm renting. Really happy with the flap and its magnetic closure. Should hold up to my bigger puppy's "exuberance". The plastic cover to block the flap seems sturdy enough for now.