The prices for materials (seasonally unadjusted) used in glass and glazing manufacturing were largely unchanged in November compared to October 2020, while year-over-year price changes involved more variety, according to the latest Producer Price Index (PPI) from the U.S. Bureau of Labor Statistics (BLS).

In November, the monthly PPI for flat glass in the commodity category is up 0.1% from the previous month, and 0.9% from November 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 November index for flat glass manufacturing in the industry classification rose 0.1% from October 2020. It’s down 0.4% 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 unchanged from last month’s PPI report. That index, in the commodity grouping, is up 0.6% from a year ago. The index for ornamental and architectural metal product manufacturing, in the industry category, moved slightly, increasing 0.1% from October to November 2020. However, it has experienced a 1.2% jump since November 2019.

The PPI for metal windows increased 0.4% in November. However, it has climbed 2.7% compared to the November 2019 report. The price for metal doors and frames is also up slightly, 0.1%, from October. The category is up 1.1% for the year.

The cost of builders’ hardware, including that used in glass and glazing, was unchanged from the October 2020 report and experienced a 2% increase compared to the November 2019 report.

Monthly and Yearly Change in Glass and Glazing Material Prices

CategoryOctober 2020 to November 2020November 2019 to November 2020
Flat Glass0.1%0.9%
Flat Glass Manufacturing0.1%-0.4%
Fabricated Structural Metal Products0%0.6%
Ornamental and Architectural Metal Work Manufacturing0.1%1.2%
Metal Windows0.4%2.7%
Metal Doors and Frames0.1%1.1%
Builders’ Hardware0%2%