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Fitting a cat flap can appear daunting, but it is fairly easy to do by following the correct instructions. First, decide how high you want the flap to be (on average, belly height). Then, mark this area on the door and use the template as a guideline to drill. If you have a small kitten you can prop the door open very slightly and gradually push it to enter. Reward it as it passes through. Measure the Door A cat flap lets yo