Can You Fit Cat Flaps Into Plastic Doors?

Cat flaps allow your cat to come and go as she pleases. If you have a secure and safe outdoor location for your cat to roam, a cat flap gives her the freedom to go out to do her business and come back to see you whenever she would like. For indoor/outdoor cats, cat flaps represent independence. Putting a cat flap in a plastic door is more difficult than installing a flap in a wood door, but it can be done.

  1. Plastic Doors

    • Install a cat flap into plastic doors by following the instructions accompanying the cat flap kit. Most cat flap kits contain a separate set of instructions for plastic.

      If there are no special instructions for plastic door installation on the packaging material, you will need to alter the instructions for your plastic door. Remove the bottom panel of your plastic door if your door is built in panels. Or, remove the entire plastic door if possible so you can saw and fit on an even surface. If it is not possible to remove the door, close it and lock it so it does not move during installation.

      Use a jigsaw to cut a hole int the plastic door, in the same manner you would a wooden door. Use a very fine or specialized jigsaw piece for plastic. With an electric sander, sand down the plastic edges as they may be rough after cutting with a jigsaw. Sand down the sides of the cat flap area, and use a smaller saw to get rid of any plastic that remains.

      Use the screws that came with the cat flap door, or the type that listed in the instructions, on the plastic door. But substitute washers meant for plastic, instead of wood, to secure the door during installation.