https://menwiki.men/wiki/How_t....o_Choose_a_Cat_Flap_
Introduce your cat to the flap prior to installation so that they be familiar with the size and shape. Unlock the flap and let your cat explore it from every angle. Make sure the cut-out is level and square. Mark the screw holes and align them with the cat flap opening. The distance between the edges must be equal. Preparation Installing a cat flap in your home is beneficial for the health and well-being of your pet. It allows your pet to move from the inside to the outside without needing to allow them in or out. It will also