[vinceguidry]

Another problem with cat flaps is that you can't always install one if you have a rental. I suggested a doggie door for my parent's house, they said they looked into it but you'd be amazed at just how much space they take up, and they couldn't find a good spot to put it.

[howard941]

If the rental has a sliding glass door one of the flaps at the linked site can be fitted but be prepared for sticker shock https://www.petdoors.com/pet-doors/cat-doors/sliding-glass-d...