Parallel strand lumber is a construction material made out of:
Answer Wooden strands held together by adhesive
Called a parallam in the trades, it is a high strength composite lumber formed under pressure. It is used for columns and beams where those members will be subject to high weight loads and strong bending stresses. Parallams are not subject to shrinkage or warping as is conventional timber framing.
Asked by Tony Conrad · Last updated 4 weeks ago · 227.8K views