The world’s largest CLT producer, Sterling Structural, attains PRG 320 Certification for its TerraLam® CLT

Sterling Structural, a division of Sterling Site Access Solutions, LLC, today announced its cross-laminated timber (CLT) product line, sold under the TerraLam® trade name, has been certified to the PRG 320 – 2019 (PRG 320) performance standard by the International Code Council – Evaluation Service (ICC-ES).

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PRG 320 certification is referenced in the International Building Code (IBC) and is required in North America for CLT panels used in structural applications. Sterling, the world’s largest CLT producer, is now poised to supply TerraLam to the burgeoning mass timber construction market.

With its 700,000 cubic meter annual production capacity, Sterling’s entry into the structural CLT market is welcomed by many in the construction sector who have raised concerns about the ability of CLT producers to keep up with demand. At full capacity, Sterling can supply over 54 million square feet of floors and roofs to the commercial construction industry.

“We’re really pleased to be able to add our weight to the significant role mass timber will play in expanding the accessibility of sustainable construction,” said Sterling CEO, Carter Sterling.

Each cubic meter of wood used in construction represents one ton of sequestered carbon that will be stored away in buildings while trees planted to replace those harvested continue to sequester atmospheric carbon as they grow. Sterling is now ready to contribute an additional 700,000 cubic meters of production to that effort each year, using material grown and manufactured in the U.S.

To purchase or learn more about TerraLam CLT from Sterling Structural contact info@SterlingStructural.com.

About Sterling

Headquartered in Phoenix, IL, Sterling is the world’s largest manufacturer of CLT, having produced more than 750,000 panels for use in industrial matting markets. The company is among the first to make CLT in the U.S. Sterling’s Structural division was established in 2021 to offer an accessible, streamlined and cost-competitive product line to the mass timber construction market. With manufacturing facilities in Phoenix, Ill., and Lufkin, Tex., and annual production capacity of 700,000 cubic meters, Sterling is well-positioned to serve both industrial and structural CLT markets throughout the U.S.

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