Prices of most materials used in residential door and window manufacturing increased during the past year, according to DWM analysis of Producer Price Index (PPI) data released by the Bureau of Labor Statistics (BLS).

The monthly PPI for flat glass in the commodity category was 132.8, representing a 2.2-percent jump from a year ago. According to the BLS, the commodity classification “organizes products and services by similarity or material composition, regardless of the industry classification of the producing establishment.”

The index for flat glass manufacturing in the industry classification stands at 104.0, indicating a 3.2-percent increase from January 2016. The BLS notes that the industry classification measures “changes in prices received for the industry’s output sold outside the industry (that is, its net output).”

The cost of thermoplastic resins and plastic materials fell by 0.2 percent from January 2016 to January 2017, while prices for thermosetting resins and plastic materials rose 2.2 percent. Fiberglass plastic products rose 1.3 percent.

Prices for wood window units increased 1.3 percent from January 2016 to January 2017. Prices for wood doors for interior and exterior applications rose 2 percent during the same period. Metal windows went up 2 percent, and metal doors and frames increased 2.7 percent.

The cost of builders’ hardware, which includes hardware used in doors and windows, increased 1 percent  from January 2016 to January 2017

Recent analysis by the Associated General Contractors of America also shows the overall cost of materials used in construction, as well as the cost of labor, rose significantly faster than the price of completed buildings. From January 2016 to January 2017, there was a 3.8 percent rise in the producer price index for goods used in construction.

Another government report showed that average hourly earnings for all workers in construction climbed 3.2 percent over the same period. Meanwhile, the price index for new nonresidential buildings—what contractors charge—increased just 1.4 percent.

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