Factors That Drive ENR's Cost Indexes

Grogan, Tim
March 2006
ENR: Engineering News-Record;3/20/2006, Vol. 256 Issue 11, p40
Trade Publication
The article presents information about the factors that drive ENR's cost indexes. ENR began systematically reporting materials prices and wages in 1909, but it did not establish the Construction Cost Index (CCI) until 1921. The index was designed as a general purpose tool to chart basic cost trends. It remains today as a weighted aggregate index of the prices of constant quantities of structural steel, Portland cement, lumber and common labor. The original use of common labor as a component of the CCI was intended to reflect wage rate activity for all construction workers. ENR introduced its Building Cost Index in 1938 to weigh the impact of skilled labor trades on construction costs.


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