Inside and outside represent the two ways you can mount your window blinds, this is basically the appearance of the factor.
Window blinds between glass make the shades are flush with the wall, while outside mount units are hung outside of the frame on the wall and cover a larger area. If you want to install the inside mount, you must carefully measure the inside of the window frame from top to bottom and from left to right, as well as the depth of the window; This will determine the size of your last blinds. For external installations, you only need to know the approximate value to ensure proper installation.
