Bests & Worsts Reviews from Amazon

Here's the rub. It very basically does what you want but it is very under engineered. - it is narrower than an actual sliding door. This causes gapping which can be resolved with insulation. But it doesn't end there. -if your sliding door has a useful lock, this will make that inoperable. I ended up using something to fashion a hole in the edge so that the lock could still work, but because the panel is designed to meet the sliding door and it isn't completely flush, the lock is exposed, which I take care of with the following. - you will have gaps that will take some ingenuity to block. The main one being where the sliding door meets the panel. I ended up taking a 1.5 inch wide aluminum strip, drilling holes and using spacers to attach to panel to cover the gap. Then I used insulation under said strip to reduce loss of energy. This actually made it look a lot better. Covered the gap, created space for more insulation, and prevent the lock from being exposed. -I took a picture with an infrared camera and you can see the energy loss from the whole panel. -petsafe should have made this thicker, insulated more, and put two window panes. Also added a piece of aluminum that can be used to cover the gap and also made the panel able to still use the lock. It is a great idea but I would have paid $50 more to have something more substantial. If PetSafe sees this, I'm happy to offer some advice, provide additional pictures etc...