Like another reviewer, I too was hesitant to purchase these shades. It is difficult, however, to find 84"L cellular shades without going custom, so I took the plunge, and I couldn't be happier. I installed the brackets in the upper frame, which was super-easy to do. The window width is 31" and the 30.5" is perfect. Very, very satisfied with this purchase, so much so that I'm thinking of purchasing more for other windows in my home.