Gary Farrar
Contributing Editor
The accompanying table at the top of this page shows how Nelson-Farrar indexes have changed during 2008-10 for selected basically nonmetallic building materials.
Data are included for the overall nonmetallic group, five nonmetallic materials, and iron castings.
Fireclay brick and iron castings indexes showed the greatest changes during the period.
Fireclay brick, showing the greater gains of the two, changed to 1,918.7 in fourth-quarter 2010 from 1,679.0 in first-quarter 2008. Iron castings changed to 1,613.5 in the fourth quarter from 1,466.9 in the first quarter of the period tested.
Concrete ingredients and concrete products showed more moderate changes, although none of the changes in the indexes was drastic. The concrete ingredients index rose to 1,243.3 from 1,219.8 over the 3-year period. During the same period, concrete products changed to 1,000.6 from 978.8.
The two smallest index changes occurred in the clay products and building brick categories. Clay products changed to 975.5 in fourth-quarter 2010 from 970.1 in first-quarter 2008. Building brick changed to 1,433.3 from 1,420.9 during the time period.
The final category, the overall nonmetallic index, changed to a high of 1,092.2 during second-quarter 2010 from 1,018.3.
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