Wood products and components are popular building materials because of availability, durability, and cost.  With renovations of aging wood structures and the evolution of wood building materials, wood engineering requires the combined expertise of material science, structural analysis and design, and construction practices.  Since wood composition is complex and has variable responses to environmental conditions, the combination of wood science and engineering expertise is essential to diagnosing problems and, when appropriate, developing innovative and cost-effective repairs.


SGH’s wood science and engineering knowledge, industry leadership in the development of codes and standards, and innovative investigation and design techniques helps us find effective solutions to address our clients’ needs.  We seek the root causes of problems and ultimately find corrective options and appropriate solutions for enhancing a structure’s performance and durability. We apply our wood science and engineering expertise to the many types of projects, including the following:

  • Structural design and repair.  Timber frames, engineered wood composites, glulam beams, trusses, and structural insulating stress-skin panels, and long-span wood/timber structural components
  • Condition assessment.  Old mills and other heritage buildings, long-span and heavy timber trusses, wood pile foundations, fire- and lightning-damaged wood structures, in situ stress grading, decay and defect evaluation, moisture and dimensional movement studies, wood insect and fungi species identification, microscopic evaluation of wood damage at the cellular level, and core sampling and other nondestructive evaluation methods
  • Failure investigation.  Timber trusses that are overstressed and/or failed, metal plate-connected truss failures, distressed timber frames and other structural systems, and coating failures
  • Evaluating architectural woodwork and other wood construction.  Wood siding, paneling, and flooring with swelling, buckling, shrinking, and/or cracking, wood composites, paint and protective coatings, preservative, and wood interaction with other materials