https://longshots.wiki/wiki/Re....placement_Upvc_Door_
https://dokuwiki.stream/wiki/I....nstalling_a_Cat_Flap
Cat flaps are a great method to let your pet come and go whenever it wants. However, some cats struggle to accept them. To avoid this, some owners prop the door open or remove the door completely. It's simple if you have a little patience, and a companion to help. It is helpful to reward your cat with treats, since your cat will begin to associate the flap with positive things. Easy to install A cat flap is a great way to keep your cat happy