Nice weight, exactly what I expected. I bought the to block the light coming in from outside, and to help hold the cold out. I wish they blocked a little more light (but they are white, after all). The lenght, width, and construction are all good. I just ordered more to cover the windows that are on either side of our fireplace, as well. I had originally bought these as "place holders" until I figured out what I really wanted. However, I think these have turned out to be the right fix for this room.