New Prototype Plywood Panels May Be World’s Largest

by | Nov 30, 2016 | News

A new massive plywood building panel developed by an Oregon company and tested at Oregon State University may be the largest such product ever manufactured.

Builders are familiar with standard plywood sheets that measure 4-feet wide, 8-feet long and between a quarter-inch and more than one-inch thick. The new panels made by the Freres Lumber Company of Lyons, Oregon, can be as much 12-feet wide, 48-feet long and 2-feet thick.

The company announced its new panels in October, capping more than a year of development and performance testing at Oregon State’s Advanced Wood Products Laboratory. “The results look very promising,” said Ari Sinha, assistant professor in OSU’s College of Forestry, who oversaw the tests. “This is a unique product with the potential for creating jobs in rural Oregon.”

Versatility is one of the benefits of the product known as a Mass Plywood Panel (MPP). “These panels can be customized for different applications. Because they have very good compression qualities, they could be used for columns as well as panels,” said Sinha. The veneer manufacturing process enables manufacturers to orient wood grain and to distribute the defects found in smaller trees, such as knots, in a way that maintains the strength of the final product, Sinha added.

Tests in Sinha’s lab focused on the panels’ structural and physical properties such as density, adhesive bonding and resistance to the kinds of vertical and horizontal stresses experienced in an earthquake. Additional tests are planned after the first of the year. Mass Plywood Panels can achieve the performance characteristics of a similar product known as Cross Laminated Timber panels with 20 to 30 percent less wood.

From Phys.org: https://phys.org/news/2016-11-prototype-plywood-panels-world-largest.html

Oregon Buildings Get $200K To Test Cross-Laminated Timber

by | Jul 13, 2016 | News

Projects in Springfield and Portland have landed a collected $200,000 as leaders test the viability of cross-laminated timber.

The funding, awarded by the Business Oregon-backed cleantech champions Oregon BEST and the National Center for Advanced Wood Products Manufacturing and Design, will back research that fast-tracks CLT as a green construction material usable throughout the U.S.

Of that money, $155,000 will go to the planned four-story Glenwood Parking Structure in Springfield. The project’s developers will use the money for research, performance testing and code documentation. The team will measure such factors as vibration, moisture, post-tension loss in rocking shear walls and seismic instrumentation. The SRG firm designed the 360-space structure.

The National Center for Advanced Wood Products Manufacturing and Design, a collaboration between Oregon State University and the University of Oregon, will perform the research and testing functions. The Carbon 12 mixed-use condominium complex in Northeast Portland was awarded $45,000 for acoustic and moisture testing.

According to Oregon BEST, U.S. architects and builders wanting to use the new material in construction projects “must negotiate a maze of additional documentation, atypical performance modeling requirements, unfamiliar construction methods and building code hurdles that can delay CLT projects and has slowed adoption of the material.”

From the Portland Business Journal: https://www.bizjournals.com/portland/blog/sbo/2016/07/new-springfield-portland-buildings-get-200k-to.html