https://output.jsbin.com/gebohiwuba/
https://blogfreely.net/towerpo....int3/how-to-choose-a
https://www.openlearning.com/u..../owensdogan-sm2sfu/b
Introduce your cat to the flap prior to the installation so that they can be familiar with the dimensions and shape. Unlock the flap and let your cat explore it from every angle. Make sure the cut-out is level and ensure that the cut-out is square and even. Mark the screw holes on the door and align them with the opening for the cat flap The distance between the edges must