https://imoodle.win/wiki/Addin....g_a_Cat_Flap_to_Your
https://funsilo.date/wiki/Usin....g_a_Cat_Flap_in_Bifo
https://morphomics.science/wik....i/Cat_Flap_Fitting_N
It can be difficult to install the flap for your cat however, with the proper guidelines, it's not all that difficult. Determine how high you would like your cat flap to be (normally it's located at belly height). Mark this point on the door and use the template provided as a guideline to drill. If you have a young kitten, prop the door open a bit and gradually encourage it to go through. Reward t