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Introduce your cat to the flap prior to the installation so that they can become familiar with its dimensions and shape. Open the flap and let them explore it from all angles. Make sure that the cut-out is even and ensure that the cut-out is square and even. Mark the screw holes and align them with the cat flap opening. The distance between the edges should be the same. Preparation Installing a cat-proof flap in your home can be benefi