Prices for materials used in the glass and glazing industry edged up as 2017 came to a close, according to recently released Producer Price Index (PPI) data from the Bureau of Labor Statistics (BLS).

The monthly PPI for flat glass in the commodity category increased 0.4 percent in December from the previous month, and it’s up 1.3 percent from December 2016. 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 jumped 1.6 percent, and those prices have increased 4.9 percent since December 2016. 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 in December, but that index, in the commodity grouping, is up 2.7 percent for the year. Ornamental and architectural metal product manufacturing, in the industry category, saw price increases of 0.4 percent for the month and 2.8 percent since 2016.

The PPI for metal windows was flat from its December level, and is 3.4 percent above 2016’s levels. Metal doors and frames increased 0.9 percent for the month and are up 4.5 percent for the year.

Overall construction input prices dipped 0.1 percent in December but are up 5 percent year-over-year. Nonresidential construction materials prices were also down 0.1 percent for the month, and those prices have increased 4.8 percent from a year ago.