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Cat flaps let your pet leave and come back whenever it pleases. You can opt for a lockable flap to stop other animals and cats from entering your home. Installing a cat flap to a bifolding doors is possible provided that the door is made of toughened glass. The frame must not be rotten or damaged. The procedure is similar to installing one on a wooden door or uPVC. Easy to install The addition of a cat flap to your bifold doors enables your pet to go in and out of the home without hassle, and without needing to open and