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Cat flaps are a great way to let your pet come and go at their own pace. You can choose a locking flap to keep other animals and cats from entering your home. You can install a cat flap in a bifold door as long as the door is composed of toughened glass and the frame is not rotten or damaged. The process is similar to installing a cat flap on the door made of wood or uPVC. Easy to install Add on your bifold door to permit your pet to exit and enter the house without you having to open or close the door. This can