The mortality experience of the members of the AFL-CIO United Brotherhood of Carpenters and Joiners of America was determined for the 1969 to 1973 period. Expected and observed rates were calculated, and the mortality was expressed as standard mortality ratios (SMR). Detailed mortality data is given for 95 cause of death groupings, by trade, union locals, and geographic area. Elevated rates of job related accidental deaths were found mainly among younger workers, and were mostly the result of falls, falling objects, and electrocution. Elevated rates of lung cancer and mesothelioma among some trades are probably related to asbestos used in building insulation. No specific carcinogenic exposure to known substances can explain: 1) elevation of gastrointestinal cancer rates among pile drivers; 2) excess of lung, stomach, and bladder cancer among locals in some urban areas; 3) excess of lung cancer among union locals in the southeastern states; and 4) excess hematopoietic cancers among wood machining trades and plywood mill workers. Further investigation of these findings is warranted.