Lumber prices continued their retreat in the latest Producer Price Index report from the U.S. Bureau of Labor Statistics. Compared to a year ago, softwood lumber is down 14.6 percent. Plywood and millwork were also down, but not nearly as much. The Producer Price Index for final demand fell 0.1 percent in December, seasonally adjusted, the U.S. Bureau of Labor Statistics reported Friday. Final demand prices moved down 0.1 percent in November and 0.4 percent in October. On an unadjusted basis, the index for final demand rose 1.0 percent in 2023 after increasing 6.4 percent in 2022. The December decrease in the index for final demand is attributable to a 0.4-percent drop in prices for final demand goods. The index for final demand services was unchanged.