Flat glass prices saw a slight decrease—just 0.9 percent—from March to April, according to the latest Producer Price Index Report from the U.S. Labor Department.

The index was listed at 115.8 for April, compared with 116.8 for March.

The price of construction materials remained stable—with only a slight change from March to April, according to the report. The index was listed at 223.0 for March and 223.1 for April.

The PPI is a family of indices that measure the average change over time in the prices received by domestic producers of goods and services, according to the BLS.

“PPIs measure price change from the perspective of the seller,” writes BLS in its description of the PPI.

Meanwhile, the latest import report from the BLS showed a decrease of 0.3 percent for import prices for glass and glassware from March to April, according to the April Import and Export Price Indices. The export price remained stable with no changes from March to April.

Glass and glassware includes float glass, safety glass, lab glass and a range of other glass products, according to information from the International Price Program office in Washington, D.C.

Import/Export   Price Changes for Glass and Glassware


March   2013 to April 2013


-0.3 percent


0.0 percent

Source: U.S.   Department of Labor (DOL) Bureau of Labor Statistics