Structural panel markets were mixed. OSB sales were hit and miss coming out of the holidays, with winter weather playing a role in mills’ volumes for the week. Trading in the South was slow and conservative. Southern Pine plywood trading was fairly active to start the week, but dwindled as mills firmed prices and colder weather affected demand in some markets. The pace in western Fir plywood picked up as traders returned to their offices, but it was far from robust. Order files at mills varied.