ases entire roof assemblies—can be lifted into place using a crane. As prefabricated components become more standardized, builders may use them more often. In addition, improved adhesives will reduce the time needed to join materials, and lightweight, cordless pneumatic and combustion tools—such as nailers and drills—and sanders with electronic speed controls will make carpenters more efficient. Carpenters can experience periods of unemployment because of the short-term nature of many construction projects and the cyclical nature of the construction industry. Building activity depends on many factors—interest rates, availability of mortgage funds, government spending, and business investment—that vary with the state of the economy. During economic downturns, the number of job openings for carpenters declines. New and improved tools, equipment, techniques, and materials have vastly increased carpenter versatility. Therefore, carpenters with all-round skills will have better opportunities than those who can only do a few relatively simple, routine tasks. Job opportunities for carpenters also vary by geographic area. Construction activity parallels the movement of people and businesses and reflects differences in local economic conditions. Therefore, the number of job opportunities and apprenticeship opportunities in a given year may vary widely from area to area. Pay In 1998, half of all carpenters earned between $10.84 and $18.57 an hour. The lowest 10 percent earned less than $8.74 and the highest 10 percent earned over $23.57 an hour. Sometimes carpenters may lose work time in bad weather and when the economy is not doing well. When this happens, their wages drop. Earnings In 1998, median hourly earnings of carpenters were $13.82. The middle 50 percent earned between $10.84 and $18.57. The lowest 10 percent earned less than $8.74 and the highest 10 percent earned more than $23.57. ...