The not seasonally adjusted prices for most materials used in glass and glazing manufacturing increased slightly in January 2020, according to the latest Producer Price Index (PPI) from the U.S. Bureau of Labor Statistics (BLS).

In January, the monthly PPI for flat glass in the commodity category rose 0.2% from the previous month, and is up 0.4% from January 2019. 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 January index for flat glass manufacturing in the industry classification fell 0.4% from December 2019. It’s down 1% on a year-over-year basis. The industry classification measures “changes in prices received for the industry’s output sold outside the industry (that is, its net output).”

Prices for fabricated structural metal products have decreased 0.4% from last month’s PPI report. That index, in the commodity grouping, is down 1.6% from a year ago. The index for ornamental and architectural metal work manufacturing, in the industry category, increased a slight 0.2% from December 2019 to January 2020. It has experienced a 0.1% increase since January 2019.

The PPI for metal windows was unchanged from its December 2019 index. This is the second month of no change in price. However, it has grown 2.6% compared to the January 2019 report. The price for metal doors and frames increased 0.2% in January. The category is up 1.3% for the year.

The cost of builders’ hardware, including that used in glass and glazing, rose 1.4% in January and saw a 2.7% increase compared to the January 2019 report.

Monthly and Yearly Change in Glass and Glazing Material Prices

CategoryDecember 2019 to January 2020January 2019 to January 2020
Flat Glass0.2%0.4%
Flat Glass Manufacturing-0.4%-1%
Fabricated Structural Metal Products-0.4%-1.6%
Ornamental and Architectural Work Manufacturing0.2%0.1%
Metal Windows0%2.6%
Metal Doors and Frames0.2%1.3%
Builders’ Hardware1.4%2.7%