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Installing a cat flap a door allows your pet to come or go whenever it wants. Follow the steps below to discover how to mark the shape, cut it with the aid of a hole saw or jigsaw, and then install your cat's flap. If your cat's flap has a manual 4-Way lock you can limit access to wild animals as well as pests and strays. You can also keep a few pots of plants for your cat to hide in. Placement A cat flap is not only a way for your pet to get out more e