Name

Sterling Structural

Legal name

Sterling Site Access Solutions LLC

Website

https://sterlingstructural.com

Company type

Private

Founded year

1949

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Cross-Laminated Timber (CLT) / Mass Timber Manufacturing

NAICS

Veneer, Plywood, and Engineered Wood Product Manufacturing (3212), Engineered Wood Member Manufacturing (321215), Wood Product Manufacturing (321)

SIC

Millwood, Veneer, Plywood, & Structural Wood Members (2430)

akta.pro primary industry

CLT (Cross-Laminated Timber) Manufacturing (IMAMACAF)

akta.pro secondary industries

Mass Timber Panels & Components (DLT, NLT, Hybrid Panels) (IMAMACAG), Mass Timber & Structural Engineered Wood (CLT, Glulam, NLT/DLT) (IMADADAC), Engineered Wood Products Distribution (LVL, I-joists, Glulam, CLT) (IMAMAIAD)

Keywords

• Cross-laminated timber manufacturing
• Mass timber panels
• Prefabricated CLT structures
• Sustainable building materials
• Engineered wood products

Headquarters

HQ city

Illinois City

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. TerraLam CLT Panel Sales: Sale of standardized cross-laminated timber structural panels for wall, floor, and roof applications. Panels are sold as structural building materials to architects, engineers, developers, and contractors. Pricing is quote-based and project-specific, determined by panel specifications, species, grade, quantity, and project requirements. In 2022, Sterling expanded into the building construction market with PRG 320-certified structural CLT panels at competitive price points.
2. CLTower Shaft Wall Kit-of-Parts: Sale of prefabricated shaft wall CLT systems designed as a kit-of-parts for elevator and utility shaft applications. Addresses a specific construction use case where CLT replaces masonry/concrete shaft walls, providing faster installation and cost savings.
3. CLTimber Bay System: Sale of prefabricated mass timber structural systems for industrial and commercial buildings including warehouses, data centers, and big box facilities. Turn-key product packages including CLT panels with optional factory-applied WRB.
4. Complementary Building Products: Procurement and resale of complementary products including glulam beams, weather-resistant barriers, coatings, connection hardware, and rigging equipment through strategic supply chain partners. Sterling acts as a one-stop shop coordinating top-quality building product packages.
5. Design Assist and Project Management Services: Sterling provides design assist, project management, logistics coordination, and technical support services alongside product sales. This includes early design engagement, specification support, delegated engineering, and coordination with project teams from concept through installation.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels7 records

Core offering

Sterling Structural manufactures and sells mass timber products, primarily the TerraLam line of standardized, prefabricated cross-laminated timber (CLT) panels for wall, floor, and roof applications in commercial, industrial, residential, and institutional construction. Its portfolio also includes three specialized sub-products (CLTower shaft wall kit-of-parts, CLTimber Bay system for industrial buildings, and CLTrainer workforce training mock-up), and the company coordinates complementary structural products such as glulam beams, connection hardware, and weather barriers through supply chain partners. Sterling supports these sales with in-house design assist, delegated engineering, project management, and logistics services.

Product overview

Sterling Structural operates as a mass timber manufacturer offering standardized, productized CLT solutions. The core offering is the TerraLam® CLT product line—a range of prefabricated cross-laminated timber panels in multiple grades (Southern Pine, Spruce Pine Fir South, and Eastern Hemlock). This core is complemented by three specialized sub-products: CLTower for shaft wall applications, CLTimber Bay for industrial/commercial buildings, and CLTrainer for workforce training. Sterling also facilitates procurement of complementary structural products including glulam beams, connection hardware, weather barriers, and coatings through strategic supply chain partners, positioning itself as a one-stop mass timber solution provider.

Differentiator

Problem solved

Functional benefit

Brands

• TerraLam: Sterling's primary CLT product line providing sustainable, cost-competitive cross-laminated timber panels for wall, floor, and roof applications in building construction
• CLTower
• CLTimber Bay
• CLTrainer

Products and services

• TerraLam CLT Panels Sterling's primary cross-laminated timber (CLT) product line providing sustainable, prefabricated mass timber panels for wall, floor, and roof applications. Available in three grades: V3+ (Southern Pine), V4+ (Spruce Pine Fir South), and EH-T (Eastern Hemlock), with all panels PRG 320 certified and bonded with ANSI 405-certified PUR adhesive. Sold to architects, engineers, developers, and contractors for commercial, residential, industrial, and institutional projects.
• CLTower Shaft Wall Kit-of-Parts Prefabricated CLT shaft wall solution for elevator and stair cores designed to accelerate vertical core construction. Addresses 1-hour and 2-hour fire rating requirements, installs in hours rather than weeks, and is delivered as a kit-of-parts for single-trade, weather-independent installation. Targets hotels, apartments, and multi-story buildings replacing traditional masonry or concrete shaft walls.
• CLTimber Bay System
• CLTrainer Mock-Up
• Complementary Mass Timber Structural Package (Glulam Beams, Connection Hardware, Weather Barriers, Coatings, Rigging Equipment)

Quantifiable outcome

• 70% embodied carbon reduction achieved on Star Lofts multi-family project (Des Moines, IA)
• +7 more outcomes

Named customers15 records

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

19 partnerships are on record, tiered core and minor.

• KPFF Consulting EngineerscoreStrategic or Co-development PartnerStructural engineering partner providing delegated mass timber design and engineering services on multiple Sterling projects. Collaborated on Amazon DII5 Warehouse (structural optimization), Star Lofts, Livery Stable, Norris University, and Elon University Health Center projects. KPFF serves as Sterling's primary delegated engineering partner for complex mass timber connection design.
• Simpson Strong-TiecoreTechnology or IntegrationLeading connection hardware manufacturer providing structural connectors, fasteners, concealed hangers, and hold-down systems for Sterling mass timber projects. Products used across diverse project types from hotels to libraries. Featured in CLTrainer mock-up for training purposes.
• Engelberth Construction, Inc.coreStrategic or Co-development PartnerGeneral contractor and installer appearing on multiple Sterling projects including Sand Bar Restaurant (South Hero, VT) and Star Lofts (Des Moines, IA). Trusted installation partner for complex mass timber projects requiring specialized erection expertise.
• Denk + Roche BuilderscoreImplementation/ SI/ Consulting PartnerGeneral contractor and installer on Busse Building (Mt. Prospect, IL), Gateway Multipurpose Room (Lake Villa, IL), and Amazon DII5 Warehouse (Elkhart, IN) projects. Key installation partner for hybrid mass timber construction in Chicago metro area.
• MLP SolutionscoreImplementation/ SI/ Consulting PartnerMass timber installation and structural steel procurement/erection contractor. Partner on Candlewood Suites Fort Bragg (Fort Liberty) and Water's Edge projects. Specializes in hybrid mass timber and steel construction.
• QB Corp (Quebec Beam)coreTechnology or IntegrationGlulam beam manufacturer supplying structural glulam components for Sterling projects. Partner on Amazon DII5 Warehouse office bay, Jesup Memorial Library (Doug-fir glulam), and Livery Stable projects. Key component in Sterling's one-stop-shop turn-key structural packages.
• RothoblaascoreTechnology or IntegrationConnection hardware and rigging equipment manufacturer providing screws, concealed beam hangers, and lifting/rigging solutions for Sterling CLT installations. Featured on Cambium Campfire, Gateway Multipurpose Room, and White Lake Township projects. Also provides engineering support for connection detail optimization.
• LK ArchitectureminorStrategic or Co-development PartnerArchitect of Record on Candlewood Suites Fort Bragg project, working with Sterling on mass timber specification and design optimization for blast-resistant military-adjacent facility.
• ID8 Architects, PLCminorStrategic or Co-development PartnerArchitect on Star Lofts project in Des Moines, IA - Iowa's first Zero Carbon-certified building. Collaborated on hybrid mass timber/light-frame structural system design.
• ZGF ArchitectscoreStrategic or Co-development PartnerSustainability lead and design architect on Amazon DII5 Warehouse project. Worked with Sterling on optimized structural grid for material efficiency in CLT wall layout. Pioneer in sustainable industrial development design.
• WoodWorkscoreStrategic or Co-development PartnerNonprofit organization providing education, resources, and technical support for mass timber construction. Referenced in multiple Sterling projects for fire design guidance, acoustic assembly references, and span/connection specifications. Sterling links to WoodWorks CAD/Revit library for standard assembly details.
• Thornton TomasettiminorStrategic or Co-development PartnerStructural engineering firm on Gateway Multipurpose Room (curved CLT roof) and Jesup Memorial Library projects. Collaborated on complex mass timber design including curved panel fabrication and acoustic performance optimization.
• VaproshieldcoreTechnology or IntegrationWeather-resistant barrier manufacturer supplying SlopeShield Plus membrane for CLT roof applications. Factory application available through Sterling for fast-tracked progress. Featured on Amazon DII5 Warehouse and 500 Emma projects.
• Homestretch HousingminorStrategic or Co-development PartnerNonprofit affordable housing developer using Sterling CLT in repeatably designed multi-family buildings. Projects include Vineyard View Apartments (4-unit affordable housing) and Fern Street two-family homes in northern Michigan. Pioneer in bringing mass timber to affordable housing market.
• Modus StudiominorStrategic or Co-development PartnerArchitecture firm on 500 Emma workforce housing project in Springdale, AR. Collaborated on modular, repeatable mass timber design using Sterling CLT floor and roof decks optimized for material efficiency.
• Mass Timber AdvisorsminorImplementation/ SI/ Consulting PartnerMass timber consulting firm providing technical expertise and advisory services. Collaborated on Britton Lumber project as Mass Timber Consultant alongside Sterling's supply role.
• Aera SystemscoreStrategic or Co-development PartnerCLT modular home builder and design firm. Strategic partner on Water's Edge single family home (Nashville, TN) and Intunity Homes affordable senior/accessible housing (Memphis, TN). Served as design coordinator and CLT assembly partner. Close collaboration from panel optimization through installation.
• International Living Future InstituteminorStrategic or Co-development PartnerCertifying body for Declare label material transparency certification and Living Building Challenge credits. Sterling TerraLam panels carry Declare label through ILFI. Also relevant for Star Lofts' Zero Carbon certification through ILFI.
• Sustainable Forestry Initiative (SFI)minorStrategic or Co-development PartnerForest certification organization. Sterling sources 100% of lumber from U.S. forests certified under SFI Certified Source and Chain of Custody programs, third-party verified by SCS Global. Supports regenerative forestry practices throughout Sterling's supply chain.

Scale indicators10 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Stora Enso (Wood Products division): European-based global engineered wood and CLT leader with North American operations. Offers a broader engineered wood portfolio and larger international footprint than Sterling, competing on multi-story commercial mass timber.
• Weyerhaeuser (Wood Products): Major US forest products and engineered wood company producing lumber, LVL, I-joists, and other structural wood components. A broad incumbent with timber resources and channel scale exceeding Sterling's.
• Mayr-Melnhof Holz: European CLT and engineered wood manufacturer with North American distribution. Competes in the structural CLT segment with comparable PRG-equivalent certified products.
• Boise Cascade (Wood Products): Large US engineered wood products (I-joists, LVL) manufacturer with broad distribution. An adjacent incumbent in structural wood framing that occasionally stretches into prefabricated timber offerings.
• Binderholz (Binderholz Bausysteme): Austrian mass timber manufacturer with CLT (BBS), glulam, and cross-laminated timber products distributed in North America. Competes as an imported incumbent on large timber projects.

Direct peers

• Structurlam Mass Timber Corporation: Canadian CLT and glulam producer serving the North American market with prefabricated mass timber systems, including notable sports and commercial projects. Competes with Sterling on integrated timber structural packages.
• SmartLam North America: One of the largest US mass timber/CLT manufacturers with plants in Idaho and Alabama. Directly competes with Sterling's TerraLam panels for structural CLT projects across commercial, industrial, and multifamily segments.
• Anthony Forest Products: US manufacturer of engineered wood products including glulam and laminated veneer lumber serving commercial and industrial construction. Overlaps with Sterling's structural timber offering in the mass timber/hybrid space.
• DR Johnson Lumber (DRJ Mass Timber): US CLT manufacturer based in Oregon serving West Coast and broader North American markets. Competes head-to-head on structural CLT panels with comparable PRG 320-certified offerings and standardized sub-products.
• Element5 (formerly Nordic Structures): Mass timber manufacturer producing CLT, glulam, and prefabricated building components from facilities in Quebec and Ontario with growing US presence. Direct competitor to Sterling in the North American structural CLT market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles18 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sterling Structural