Roof trusses have a lot going for them. They save time, which means they save contractors money, and they eliminate the need for interior columns or bearing walls. The downside is that the attic space becomes a web-filled jungle, unsuitable for storage. But it doesn't have to be that way. Storage trusses can provide usable space in the attic at a very reasonable cost. Case in Point During the initial design of a three-story addition we built earlier this year, the clients requested that several large rooms on the top floor be free of posts. Trusses were the natural choice to clear-span the 24- foot-wide addition, so I put together an order for standard