I needed curtains for my windows that were 72 inches, because the cold air return is located directly under the window, and this size is almost impossible to find. When I purchased these they were described as "Light-filtering." These are not light-filtering. Light-filtering is opaque but does not block light completely. These are sheers. They are completely see-through and do not filter light. Having established that, I like the quality and the fabric. They wash up beautifully and needed only a bit of ironing to take out the creases. I'm sure these are perfect for doors as that is what they were designed for, but for windows they will not afford any privacy at all. I'm using them for now because I have venetian blinds on my windows, but if I had not I would not be able to use these at all.