https://wifidb.science/wiki/Ba....ck_Door_With_Cat_Fla
Installing a pet flap on your French or Patio doors is a good idea if you own a dog or cat. It makes it easier for them to go in and out without you needing to open the door. There are many options for cat flaps designed to be used with uPVC composite or wooden doors. Some have a four way locking system that can be set to allow exit only or in-only. Installation Cat flaps are an excellent way to let your cat out and in of the house without having to open the door every time. This is especially beneficial when your cats are keen