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You and your cat can both benefit from having a cat flap in your bifold door. It also helps to prevent extreme cold or hot weather from entering your home. First, you must take measurements of your pet to determine the size of door flap you need. This will help you make a hole that is adequate for the flap. Outdoor Access Even those with no DIY skills can install a cat flap on an exterior backdoor. This will cut down on the expense and stress of hiring a carpenter or handyman to do the job for you. You can give your cat access t