Better forest management, new construction designs make a good combination

In October 30, 2017

These are exciting times for the timber industry.

Government forest managers and their political bosses finally appear to recognize that more effective management of public forests is needed to help prevent future wildfires and reduce their severity.

Beyond timber management, however, are innovations that promise new uses for timber in construction. Among them is “mass timber” that is used in “tallwood design.” As an example, a credit union in Hillsboro is using glulam beams to construct its new five-story, 150,000-square-foot headquarters building.

Another building planned for Portland will be 12 stories tall and constructed of cross-laminated timber, called CLT. It will dwarf the seven-story building in Minneapolis, Minnesota, that is currently the tallest mass timber structure in the nation.

To explore the uses and design possibilities of mass timber, the University of Oregon architecture program is combining efforts with Oregon State University’s forestry and engineering programs to create the Tallwood Design Institute.

In other words, wood construction is sexy again. Once relegated to home construction and one- or two-story projects, lumber was seen as an excellent material for relatively small structures.

Then came cutting-edge projects such as the Metropol Parasol in Seville, Spain. It is among the largest wooden structures in the world. Made of laminated lumber coated in polyurethane to protect it from the weather, the ethereal design of six interconnected “mushrooms” soars 85 feet tall and covers an area that is 490 feet by 230 feet.

Built in 2011, it shades the entire city square and houses a restaurant, museum, farmers’ market and a walkway that allows visitors a bird’s-eye view of the historic city.

The future of mass timber is nearly unlimited. Larger mass timber such as CLTs made by DR Johnson Lumber Co. in Riddle, and mass plywood panels made by Freres Lumber Co. in Lyons, offer architects and engineers possibilities that didn’t even exist a few years ago.

Better-managed forests, combined with innovative products, designs and structures demonstrate that the timber industry’s future is brighter than it’s been in a long time.

Better forest management, new construction designs make a good combination by The Daily Astorian.  Available from <> [October 19, 2017]