https://mozillabd.science/wiki..../Using_uPVC_Cat_Flap
A cat flap lets you to allow your pet to roam more freely while saving you the hassle of having to let them out and in. It can also help your pet be less stressed and prevent them from entering the house when they are not wanted. To place a cat flap on your door take a measurement from the bottom of their stomachs to the floor and draw an outline on the door panel. Utilize a spirit-level to ensure whether the line is straight. 1. The type of door If you're installing the cat flap to a uPVC door panel or a double glazing gla