Check out the books by Richard Babcock:

Richard W. The Barns at Wolftrap. Babcock, 1982.

Ed. note: Mr. Babcock is the legendary timber framer who constructed the Barns at Wolftrap Farm Park, Vienna, VA.

Babcock, Richard W. Barns Researched, Restored and Resurrected Using Ancient Raising Methods. 1998, 145 pp. Available from Richard Babcock, Hancock, MA. 01237.

Babcock, Richard W., Stevens, Lauren R. Old Barns in the New World, Reconstructing History. Berkshire House Publishers: Lee, MA. 1996, 191 pp.. Several have plans for a huge German Swingbeam barn that he moved to Wolftrap