The seasonally unadjusted prices for materials used in glass and glazing manufacturing were positive in August and in year-over-year price changes, according to the latest Producer Price Index (PPI) from the U.S. Bureau of Labor Statistics (BLS).

In August, the monthly PPI for flat glass in the commodity category was down -0.3% and up 7.1% from August 2020. 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 August index for flat glass manufacturing in the industry classification also declined slightly -0.4% from July 2021 and rose 12.3% 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 were up from last month’s PPI report. That index, in the commodity grouping, is up 32.4% from a year ago and up 3.3% from July. The index for ornamental and architectural metal product manufacturing, in the industry category, increased slightly 0.2% from July to August 2021 and 28.6% from August 2020.

The PPI for metal windows increased 0.4% and climbed 12.3% compared to the August 2020 report. The price for metal doors and frames is also up, 6.1% from July and 22.0% for the year.

The cost of builders’ hardware, including glass and glazing, also increased from the July 2021 report with a 1.7% increase and rising 11.6% over August 2020.

CategoryJuly 2021 to August 2021August 2020 to August 2021
Flat Glass-0.3%7.1%
Flat Glass Manufacturing-0.4%12.3%
Fabricated Structural Metal Products3.3%32.4%
Ornamental and Architectural Metal Work Manufacturing0.2%28.6%
Metal Windows0.4%12.3%
Metal Doors and Frames6.1%22.0%
Builders’ Hardware1.7%11.6%