https://squareblogs.net/litter....aries37/cat-flap-cov
https://www.openlearning.com/u..../justicemorgan-smi0b
A cat flap that is through the wall is a great method to let your pets leave and come whenever they want. However, you must be careful not to install it too high on the wall. This could result in energy loss and allow burglars to gain entry into your home. A cavity with a hole can be a challenge for future owners should you decide to sell your home. Cat doors made of glass are a safer alternative. Easy to install A wall-to-wall cat flap is a g