What truss makers and other companies whose products depend upon raw and finished metals can expect is more price volatility, with the larger industry leaders providing some early indicators. One of the world's largest aluminum makers, U.S.-based Alcoa, reported a 35-percent decline in Q4 2008 aluminum prices, dropping Alcoa's alumina revenues by 21 percent and leading to its first quarterly loss in six years. To compensate, Alcoa announced it would cut output and costs dramatically, including 15,000 worker layoffs.