Engineered solutions and turn-key services for the construction site access industry. Our TerraLam mats, TerraCross bridges, and other access products are designed to provide temporary access to challenging locations.
Our structural product line provides a competitively priced, mass timber panel that is designed for seamless integration into wall, floor, and roof applications.
For more than 75 years, Sterling has innovated and delivered sustainable solutions that meet customer needs, create jobs and economic opportunity across the supply chain, and reduce the risk & environmental impact of industrial, commercial and residential construction projects.
Sterling operates across several construction and commercial related industries. Our Site Access division utilizes our flagship TerraLam CLT product as an access mat, providing a strong, durable, and more sustainable alternative to other commonly available matting products. Our Structural division transforms our TerraLam CLT product into panels for mass timber construction, bringing advantages of reduced construction time and increased sustainability over traditional building materials such as concrete and steel. And our Lion Lumber division creates high-quality wood products used in civil engineering projects and industrial freight operations.
Our corporate headquarters and primary manufacturing facility is located in Phoenix, Illinois. We also have a second manufacturing facility in Lufkin, Texas and additional offices for construction operations and shared services.
05.08.2025 – Sterling Solutions Offers TerraCross, Industry’s Quick-Deployment, Engineered, Cross-Laminated Timber Temporary Bridge
Sterling Site Access Solutions, a leading construction site access provider and the largest producer of Cross Laminated Timber (CLT) in North America introduces TerraCross, a quick-to-deploy, temporary bridge made with CLT panels and steel. Available for rent or purchase, TerraCross is a fully-engineered system made with structural steel that supports up to 100 tons over clear spans of 50 feet, offering a safer, more durable and cost-effective alternative to field bridging for construction and development projects.
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03.11.2025 – Sterling Solutions Announces a Breakthrough in Performance, Durability and Sustainability for Cross Laminated Timber Site Access Mats
Sterling Site Access Solutions, a leading construction site access provider and the largest producer of Cross Laminated Timber (CLT) in North America, today announced a technological breakthrough in performance, durability and sustainability for its site access mats. Its patent-pending “CLT enhancement” method dramatically reduces typical deterioration caused by moisture, heat and normal wear and tear, resulting in a mat that performs optimally for up to twice as long as traditional CLT mats.
Sterling’s core leadership team combines decades of experience in the site access, construction, and commercial operations industry, including 3rd-generation owners who continue to work at the company.
For additional information about Sterling’s leadership, including meeting the other leaders in the company, please visit our leadership page.
Our commitment to a secure work environment is reflected in our comprehensive safety protocols, rigorous training programs, and the integration of cutting-edge technology and industry best practices. Our dedicated safety professionals actively monitor our operations, identifying potential risks and implementing proactive measures to mitigate them. This unwavering focus not only protects our team but also safeguards our clients and the communities we serve.
Our exceptional safety record stands as a testament to our proactive approach and relentless pursuit of excellence. We foster a culture where safety is a shared responsibility, empowering every team member to make it a daily priority. Regular audits, ongoing improvement initiatives, and open lines of communication help us maintain a dynamic, responsive safety management system. Safety goes beyond compliance—it’s a driving force behind our innovation and leadership. We’re committed to setting new benchmarks in safety performance and creating a safer future for all.