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It may seem difficult to install a cat flap however, with the proper instructions it's not that hard. Determine how high you would like your cat flap to be (normally it's located at the belly height). Mark this point on your door and use the included template as a guide when drilling. If you have a kitten who is still a newborn, gently prop the door slightly open and allow it to walk through. Reward the kitten as it moves through. Take a measurement of the door A cat flap lets your pet to enter and exit y