Indexes for framing lumber, plywood, and OSB maintained by the authoritative Random Lengths Lumber and Panel Market Report show a sharp increase this year, the newsletter reports. The Random Lengths Framing Lumber Composite Price stood at $434 (per 1,000 board feet) on April 19, up from $302 a year earlier. The Random Lengths Structural Panel Composite Price, a weighted average of 11 key products, was at $509, up from $345 a year earlier.