Ideal Pet Products Aluminum Sash Window Pet Door, Adjustable to Fit Window Widths from 33" to 38", Large 10-1/2” x 15” Flap Size

50 lb poodle just fits through the largest doggy door. It took some work to create a level plat from inside and outside the house, so she could step through smoothly. The window was easy to install, fits well, and seems like a good quality. I like the magnetic clasp that helps the flap stay in position when the dog isn't pushing through. Still working on teaching her to use it, but I don't think it should take too long. So far, I am pleased with this item.

Great doggie door!!! It was delivered late but was worth the wait! Now to teach the dogs to use it. We got the larger size and our 26lbs goes out just fine, I would say that a large dog would fit with no problem at all. The insulation isn’t the best, but we were able to make it work.

Love this. Easy to install. Air tight/no draft. Great product. Needed to add more foam for top and bottom of window.

It works great and was easy to install.

The door was easy to install but my dog was too freaked out to use it. My granddaughter had fun with it though. I gave it a 4 star because I ended up returning it.

Great quality made door very happy fit perfect

We have two K-9’s — a 17 lb and a tall 30 lb with legs like a small goat who can shimmy under a sofa with just 6” leeway. Both are rescues and one just would not alert us to go outdoors giving us the task of mind reading. Until we had a better solution, I ordered the best Wegreeco doggie pants and although that worked like a charm, it made our sweet boy very sad. We have French doors so not an easy pet door option. We do have a basement window at ground level so looked for a way to create access. Although a window insert is most often used for cats it seemed the perfect solution for our situation. We purchased a 10.5” x 15” used insert and it arrived in a beat up box which made us tree huggers happy! Hubby had it installed in two minutes flat and we were in business. He says the adjustment mechanism was very easy. Of course the pups were dubious about the new contraption, but we made it a game and within a day they would enter and exit for treats but on the third day these two were happily running in and out when they pleased. Absolutely perfect for us! So grateful for this well made product. Note: Hubs installed the insert in an outside track so the window can be closed with the unit in place because he does things the way he wants. There is a gap at the top that weather stripping could easily fill but we enjoy the extra air circulation.

This window pet door was a gamechanger for my pups! It took them a few hours to get the hang of it but they come and go as they please now! We have had this door for over a year and had no issues with shifting Texas Weather.