The Worldscreens are an amazing product. These solar screens can go up to 40 feet in width on a single panel and the beauty is the box is only 4″ x 4″ that they fit into. Longer drops have larger headboxes. As you can see this nicely blacks out the room for a huge window. This is not the finished product. We actually fabricated a large cornice to fit over the top part of the window to finish this treatment off.