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A cat flap permits your pet to enter and leave the house at will which reduces stress for you and your cat. Installing a cat flap could be a daunting task. Preparation and consideration are the keys to success. Get your tools and supplies. Mark the exact position of the flap on your door or wall. Location A cat flap allows your pet to explore, eat, and play without having to open or close the door every time. It also allows your cat to access their food bowl and litter box, which helps to prevent them from fighting. The location of the flap depends