Home to industry-leading site access products such as our TerraLam access mats and TerraCross bridge systems, we offer strong, lightweight, and sustainable alternatives to current temporary access options on the market.
As the largest manufacturer of CLT by volume, our structural product line provides a competitively priced, mass timber panel that is designed for seamless integration into wall, floor, and roof applications.
The modern version of our founding company, Lion Lumber specializes in high-quality, American-sourced wood solutions tailored for industrial applications such as lagging and shielding lumber to custom skids and pallets.
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 increase 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.
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.
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02.24.2025 – Sterling Structural Announces New Mass Timber Workforce Training Tool
Sterling Structural, a leading manufacturer of cost-effective, pre-fabricated mass timber and hybrid structural systems in North America, today announced the availability of a new Mass Timber Mock-up training kit. The kit is designed to help vocational schools, training programs and unions educate and train the construction industry workforce on the emerging use of Mass Timber in a wide range of structures.
| Corporate HQ and Manufacturing | Lufkin Manufacturing | Corporate Satellite Office | Construction Operations |
| 501 E 151st Street Phoenix, IL 60426 (708) 388-2223 Directions |
South, 7309 US HWY 69 Lufkin, TX 75901 (936) 824-1200 Directions |
2001 Butterfield Rd., Suite 510 Downers Grove, IL 60515 (708) 388-2223 Directions |
813 Richards St Joliet, IL 60433 (708) 388-2223 Directions |