Lumber industry threatened by glut of unsold homes he glut of homes in foreclosure, vacant, or stuck on the market has the nation's lumber industry hanging on by a limb. Since housing starts hit their peak in mid-2005, demand for lumber used in floors, home frames, and cabinets has declined sharply, and experts say the number of unsold homes would need to significantly decrease before homebuilders commit to building new ones. With fewer new houses under construction, and foreclosure notices surging this summer, there's a lot at stake for the sawmills and loggers that feed the nation's dwindling appetite for floorboard, housing frames and cabinets. The industry, which employs more than 100,000 workers, has seen employment drop 13 percent the last three years, according to government data. Millions of private landowners that manage family owned timberlands also depend on the lumber industry....