Window Screen Cat Door

Turn a window into a cat door! Select an adjustable window screen that will fit your window, place the screen in the window and mark the locations of the settings. Remove the screen from the window and use clamps or tape to secure the screen according to the markings. Cut out a square from the pieces of screen and cover the cut edges of the screen with duct tape. Use duct tape to hang plastic flaps on the outside of the screen, remove the clamps or tape holding the screen in place and set the screen in the window.