Otherwise, if it is too light, your window curtain would not be loose well. Fair home interior decoration style scheme using clear orange dome glass pendant lamp including large window curtains also white furry area rugs mesmerizing window treatment decoration. If the hanger panel of the curtain is higher form the window, this thing would make the room looks higher. In measuring the window curtain height, you could start from the top of the window and it is added with some inches of the curtain height which hangs into the floor. .