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Introduce your cat to the flap prior to installation so that they can become familiar with the size and shape. Prop the flap open and let them explore it from every angle. Make sure that the cutout is even and square. Mark the screw holes and align them with your cat flap opening. The distance between the edges must be equal. Preparation Installing a cat flap inside your home is beneficial for the health and well-being of your pet. It allows your pet to freely move from inside to the outsi