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WSE Defense: Exploratory Study of Salvaged Lumber as Feedstock for Cross-Laminated Timber (CLT)

The U.S. generates over 70 million tonnes of wood waste annually. Current recycling rates for wood waste are in the range of 10% to 15%, and typical markets are primarily for lower-value uses. Portland, Oregon was the first U.S. city to implement a deconstruction ordinance in 2016. While markets exist for reclaimed wood from deconstructed buildings, supply exceeds demand for smaller, and shorter salvaged lumber. Our research goal was to investigate the feasibility of using said salvaged lumber for manufacturing of Cross-Laminated Timber (CLT), which could provide a new market for this material. Wood properties of the salvaged lumber relevant to CLT manufacturing were measured. Dynamic elasticity testing results showed that 95% of samples were sufficiently stiff for the manufacture of E3 grade CLT panels. Three panel layups were manufactured with varying amounts of salvaged content. Panels were tested in accordance with ANSI/APA PRG 320-2018: Standard for Performance-Rated Cross-Laminated Timber. Results from tests showed that salvage lumber could be used to make 100% salvaged lumber CLT panels or in the core of panels. Our research not only exposes a potential new market for this material, but also a new option for green building and future sustainability.


Raphael Arbelaez is a graduate student pursuing a master’s degree in Wood Science. He received his undergraduate degree from the University of Georgia in Forest resources. Raphael is passionate about recycling, product development, sustainability, and helping others. After graduating, Raphael hopes to use his passions, experiences, and education to make a positive impact on the world.

Instagram:  @rapharbelaez


Thursday, November 14, 2019 at 11:00am to 12:00pm

Richardson Hall, Room 107
3180 SW Jefferson Way, Corvallis, OR 97331

Event Type

Lecture or Presentation

Event Topic

Academic, Research


Community Members, Faculty and Staff, Student, Industry Partner





College of Forestry, Department of Wood Science & Engineering
Contact Name

Jessica King

Contact Email

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