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A cat flap lets your pet to go in and out of the house as it pleases and reduces stress for you and your cat. However, installing a cat flap is not an easy task. Preparation and consideration are the key to success. Get your tools and supplies. Then mark the exact position of the flap on your door or wall. Location A cat flap lets your pet go outside to explore, eat and play without having to open or shut the door each time. It also allows your feline friend access to their cat litter box and food, h