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Cat flaps are an excellent way to let your pet move around at their own pace. You can opt for a lockable flap to keep other cats and animals from entering your home. Installing a cat flap to a bifolding door is possible as long as the door frame is made of toughened glass. The frame must not be damaged or rotten. The process is similar to installing one on an old wooden door or uPVC. Easy to install A cat flap added to your bifold doors will allow your pet to move in and out of the house easily, without having to