Building a home made entirely from American made products from the nails to the bathtub was achieved by Bozeman, Montana builder Anders Lewendal. There are more than 120 products from 33 states. Anders believes that if every builder bought just 5% more American materials this could create 220,000 jobs. He does acknowledge that using American products can be more expensive, however, only 1 to 2 percent more than a foreign-sourced house.
This link will take you to an ABC News video on the home
http://news.yahoo.com/video/business-15749628/home-completely-made-in-america-26889271.html
This link is to a pdf document listing all of the materials and products used.
http://abcnews.go.com/images/Business/Made%20in%20America%20List.pdf