Prior to purchase, I inquired about the exact width of the shade. I was informed that the shade width is exactly as stated in the description, so I was able to order an accurate size. The other dimension that was important to me was the dimension of the shade when opened: My 48" length shade only takes up 3" of space at the top of the window when the shade is retracted. I'm highly satisfied with my experience prior to purchase; the purchase and delivery experience; as well as the product itself.