Window shades honeycomb, like almost all window blinds and shades, can be mounted outside the window frame, or they can be mounted inside the window frame. Inside mounting requires accurate measurements, particularly the width. If the width is measured too wide, the window honeycomb shades won’t fit inside the window frame, and if the measurement is too narrow, the shade will let light in on the sides. And if the measurements are very narrow, the window shades will not offer complete seclusion. Calculating the height correctly is also crucial. If the measurements are too short, the shade will fall short of the bottom of the window, allowing in light, and in very short shades, compromise your privacy. The best selling room darkening top down bottom up honeycomb shades at Affordable Blinds are measured in a way that is too long causes the cellular shade material to overlap at the bottom. The shade will however provide privacy.