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Cat flaps are an excellent way to allow your pet to leave and come whenever it wants. 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 constructed of toughened glass and the frame isn't rotten or damaged. It's the same as installing a cat flap on a wooden door or uPVC. Easy to install Add a cat flap on your bifold door to permit your pet to enter and exit the home wit