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Cat flaps are a great option to let your pet leave and come whenever it wants. You can choose a locking flap to stop other animals and cats from entering your home. Installing a cat flap on the bifolding door is feasible, provided the panel is made from toughened glass. The frame must not be rotten or damaged. It's the same as installing one on an old wooden door or uPVC. Easy to install Adding a cat flap to your bifold doors enables your pet to move in and out of the house without hassle, and without need