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Installing a cat flap a door allows your pet to come and go as it pleases. Follow the steps below to find out how to mark the shape, cut it out using the aid of a hole saw or jigsaw, and then install your cat's flap. You can keep wild animals, pests and stray cats from getting into your cat's enclosure if it has a Manual Four-Way Lock. It is also recommended to have some pots of plants around for your cat to hide in. Placement A cat flap can be used to keep animals from entering such as rodents or cats. So