Framing lumber prices are on the march, says Calculated Risk's Bill McBride.
Early in 2013 lumber prices came close to the housing bubble highs.
The price increases in early 2013 were due to a surge in demand (more housing starts) and supply constraints (framing lumber suppliers were working to bring more capacity online).
Prices didn't increase as much early in 2014 (more supply, smaller "surge" in demand).
In 2015, even with the pickup in U.S. housing starts, prices were down year-over-year. Note: Multifamily starts do not use as much lumber as single family starts, and there was a surge in multi-family starts. This decline in 2015 was also probably related to weakness in China.
Prices are now up year-over-year.