Construction materials prices increased 2 percent in March, which is the largest monthly increase since July 2008, according to the April 14 Department of Labor Producer Price Index. Over the past three months, construction materials prices rose 4 percent and are 6.9 percent above March 2010 levels.

Steel mill product prices also saw their largest monthly increase since July 2008, climbing 5.3 percent in March. For the quarter, steel mill product prices are up 12.4 percent, and year over year they are 15.3 percent higher.
The prices of iron and steel increased 2.8 percent in March and 10.6 percent for the quarter, to reach levels 14.7 percent higher compared to last year. Prices for fabricated structural metal products saw a more modest increase of 0.8 percent in March and 2.9 percent for the quarter, and are 5.1 percent higher than March 2010. Prices for plumbing fixtures and fittings increased by 0.4 percent in March, 0.4 percent for the quarter, and 1.8 percent year over year.

In contrast, prices for prepared asphalt, tar roofing and siding slipped 0.4 percent for the month, but were 0.3 percent higher for the quarter and 0.6 percent higher than the same time last year. Softwood lumber prices increased 0.5 percent in March and 1.4 percent for the first quarter, but are still 0.8 percent lower compared to March 2010. Concrete product prices stayed level for the month and fell 1 percent for the quarter, making them 0.7 percent lower than one year ago.

Crude energy prices fell 0.4 percent in March, but were up 2.4 percent for the quarter and 6.6 percent year over year. The 11.7 percent monthly decline in natural gas prices helped counter the 5.7 percent monthly increase in crude petroleum prices. Wholesale finished goods prices finished the month 0.7 percent higher, and were up 3.1 percent for the quarter and 5.7 percent compared to March 2010.