PPI: March Numbers Remain Positive Overall

The seasonally unadjusted prices for materials used in glass and glazing manufacturing were mostly positive in March 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 March, the monthly PPI for flat glass in the commodity category fell slightly to -1.4% but rose 9.5% from March 2021. 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 March index for flat glass manufacturing in the industry classification also decreased -1.3% from February, but rose 13.1% 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 were up from last month’s PPI report. That index, in the commodity grouping, is up 36.0% from a year ago and increased a slight 0.4% from February. The index for ornamental and architectural metal product manufacturing, in the industry category, also increased 5.7% from February and 37.4% from March 2021.

The PPI for metal windows increased 2.5% and climbed 28.6% compared to the March 2021 report. The price for metal doors and frames is also up, 2.1% from February and 39.4% for the year.

The cost of builders’ hardware, including glass and glazing, increased a slight 0.6% from last month’s report, and 16.6% from March 2021.


Category February 2022 to March 2022 March 2021 to March 2022
Flat Glass -1.4% 9.5%
Flat Glass Manufacturing -1.3% 13.1%
Fabricated Structural Metal Products 0.4% 36.0%
Ornamental and Architectural Metal Work Manufacturing 5.7% 37.4%
Metal Windows 2.5% 28.6%
Metal Doors and Frames 2.1% 39.4%
Builders’ Hardware 0.6% 16.6%

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