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Integrating a cat flap in your bifold doors can provide many benefits for you and your pet. It can also help stop extreme heat or cold weather from entering your home. The first step is to measure your pet to determine the size of the door flap you'll require. This will allow you create an opening for the flap that is of the right size. Outdoor Access The installation of a cat flap inside an exterior back door is not an easy task for a novice, even those with minimal DIY skills can usually do it. This can help you avoid the expense and hassle of cal