Sterling Structural provides a sustainable and affordable cross-laminated timber (CLT) option for the North American building construction industry. Our TerraLam® structural product line provides a competitively priced, prefabricated mass timber panel that is compatible with a range of structural systems in wall, floor and roof applications.

Sterling streamlines the design, fabrication and installation process for CLT structural systems by introducing a standardized product line. Offering a palette of standard sizes helps us deliver a highly efficient and cost-competitive system. Using in-house CNC capability, our panels can be prefabricated and customized to meet any project requirements. We are dedicated to providing accessible mass timber options for the construction industry.

Where does TerraLam fit best?

• Repeatable simple spans
• Scalable development and modular designs
• Budget-conscious but user-driven projects
• Replacements for steel decking and precast concrete

PRODUCT CERTIFICATIONS

ANSI PRG 320 – All panels are certified to the PRG 320 performance standard by the International Code Council with an ANSI 405-certified PUR adhesive. ICC-ESR 5053 provides all information required for your design team and building code officials. Our product report also carries the California Building Code, California Residential Code and Chicago Building Code supplements.

AVAILABLE GRADES AND SPECIES

Sterling offers three custom grades made from 100% US wood:

• V3+    | Southern Pine
• V4+    | Spruce Pine Fir – South
• EH-T  | Eastern Hemlock

SUSTAINABILITY CERTIFICATIONS

Declare – Sterling TerraLam panels are DECLARE® certified by the International Living Future Institute to be Red List Free™.

Environmental Product Declaration – Our Environmental Product Declaration (EPD) is available for AEC teams to measure their sustainability to be incorporated into your whole-building life cycle assessment (LCA). Our EPD is third-party verified and published by EPD Hub and details the environmental impacts of our products throughout their full life cycle. LCA support is available upon request.

Sustainable Forestry Initiative – Sterling supports regenerative forestry practices throughout its supply chain. We source 100% of our lumber from U.S. forests and are committed to traceability and accountability through the SFI Certified Source and Chain of Custody programs third-party verified by SCS Global.

LEED and Living Building Challenge – TerraLam panels are eligible for credits in the Materials Petal of the Living Building Challenge, as well as sourcing and material health areas in LEED. Contact our team to learn how TerraLam can contribute to green building certification programs or otherwise support your sustainable design goals.

“For many years, exposed heavy timber framing elements have been permitted in U.S. buildings due to their inherent fire-resistance properties. The predictability of wood’s char rate has been well-established for decades and has long been recognized in building codes and standards”

Scott Breneman, PhD, PE, SE
Senior Technical Director, WoodWorks

Richard McLain, PE, SE
Principal, Mass Timber Advisors

Data and design information regarding fire design of Mass Timber can be found in Fire Design of Mass Timber by Wood Works.

Depending on individual project requirements, TerraLam may need to be integrated into an assembly with supplemental materials in order to achieve desired acoustic and/or fire performance.

For a complete list of tested acoustic assemblies, please reference the Inventory of Acoustically-Tested Mass Timber Assemblies by Wood Works.