I recently purchased an outdoor sectional sofa & coffee table. A cushion box would have to be quite big for all the cushions. I therefore decided to find a waterproof cover. It was difficult to find the right size but by combining a sofa and a lounge cover I was able to cover everything easily and its a nice neutral color too. In the summer it protects the cushions from fading and from the rain. In the winter I will just add a tarp over it for extra protection.