According to the latest Producer Price Index (PPI) report, growth in the average price level of inputs to residential construction less energy (i.e., building materials) fell from 15% in 2022 to 1.3% in 2023 (not seasonally adjusted). On a monthly basis, building materials prices rose 0.1% in December after increasing 0.1% in November (revised). Monthly price increases averaged 0.2% in 2023, down from 1.5% in 2021 and 0.7% in 2022.

Here is a breakdown by building material:

Softwood Lumber: The PPI for softwood lumber (seasonally adjusted) declined 2.3% in December, the third consecutive decrease and the fourth over the past five months. The index has fallen 14.5% since reaching its 2023 high in July.

On an annual basis, prices declined 31.3% in 2023 after falling 3.2% in 2022. Although the 33.5% two-year decrease is massive in historical terms, prices remain 22.7% above the 2019 level as the index skyrocketed 84.6% between 2019 and 2021.

Gypsum Building Materials: The PPI for gypsum building materials declined 0.3% in December and have not increased since March 2023. The index decreased 2% over the past 12 months, after increasing 44.6% over the two years ending December 2022.

Ready-Mix Concrete (RMC): RMC prices decreased 0.2% in November (seasonally adjusted), just the fourth decline over the last 36 months, because of a 0.9% price decline in the South; prices in the Northeast, Midwest, and West regions were unchanged. The average price of RMC increased 11.2% in 2023 and 10.3% in 2022 (NSA), combining for the second-largest two-year increase since 2000.

Steel Mill Products: Steel mill products prices climbed 3.3% in December, the first increase since May. Steel mill products annual average prices declined 16.1% in 2023 after increasing 8.7% in 2022 and the historic 90.3% increase of 2021. Prices are 31.2% lower than their 2021 peak but remain 65.1% higher than they were in January 2020.

David Logan, NAHB director of tax and trade policy analysis, provides more details in this Eye on Housing post.