https://selfless.wiki/wiki/How...._to_Install_a_UPVC_D
Installing a cat flap onto a door allows your pet to come or go when it wants. Follow the steps to learn how to mark out the shape, use an jigsaw, or a hole saw to cut it and install your cat flap. can stop wild animals, pests, and stray cats from entering your cat's enclosure by using a manual Four-Way Lock. It is also an excellent idea to keep a few pots of plant around for your cat to hide in. Placement A cat flap is not only a way for your pet to go out more easily, but it could also keep unwanted animals like ro