I ordered an 80" wide shade to cover the double windows in a bedroom.   My husband and son-in-law installed it fairly quickly.  It has a chain to lower and raise it which is tight but works well considering the weight of the shade.  It's definitely room darkening.  I ordered the length just below the lower frame of the window.  My only complaint is that if you lower it almost to the end, you have to take the shade apart to fix the chain as it gets stuck.  So order it several inches longer than you want it.  I'd order this again.