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Introduce your cat to the flap prior to installation so that they become familiar with its dimensions and shape. Unlock the flap and let your cat explore it from every angle. Make sure that the cutout is square and even. Mark the screw holes on your door and align them with the cat flap opening - the distance between the edges should be the same. Preparation Installing a cat flap inside your home can be beneficial to the health and well-being of your pet. It allows your pet to freely move from the inside to th