Heavy Structural Steel
Large-Scale Structural Steel Fabrication for Industrial Projects
Tri-Lett in the Structural Steel Sector
Heavy structural steel is our core competency. From multi-story industrial frames to massive equipment support structures, Tri-Lett has the capacity, equipment, and certified expertise to handle the most demanding structural fabrication projects.
Solutions We Provide
- Multi-story building frameworks
- Industrial equipment support structures
- Bridge components and substructures
- Heavy-duty base frames and skids
- Crane runway systems
- Large-bore vessel supports
Why Choose Tri-Lett?
AISC Member
Committed to quality structural steel practices and standards — every project meets AISC fabrication and quality requirements.
Capacity for Scale
We handle fabrications exceeding 50,000 lbs with the equipment and floor space to match the largest industrial structural projects.
Certified Structural Welders
AWS D1.1 certified welders and full NDE documentation available for every structural weld procedure.
In-House Coordination
Drawing review and engineering coordination keep complex structural projects on schedule and within budget.
On-Time Delivery
Proven production scheduling for large, long-lead structural programs — we deliver when your erection schedule requires it.
Our Comprehensive Range of Heavy Structural Steel Solutions
At Tri-Lett, we offer a wide range of custom metal fabrication solutions to meet the diverse needs of the structural steel industry.
Industrial Building Frameworks
Multi-story industrial building frameworks, mezzanines, and equipment support structures fabricated to AISC standards and your project specifications.
Bridge Components & Substructures
Structural bridge components, girders, and substructure elements fabricated to AASHTO and project-specific requirements with full documentation.
Heavy-Duty Base Frames & Skids
Massive base frames, equipment skids, and machinery foundations designed and fabricated to support the heaviest industrial equipment loads.
Crane Runway Systems
Complete crane runway systems including rails, runway beams, end stops, and support structures — engineered for your crane capacity and span requirements.
Prototyping and R&D Support
Engineering coordination and first-article review for complex structural assemblies — helping you validate designs before committing to full production runs.
Ready to Take Your Structural Steel Projects to the Next Level?
Contact us today to discuss your needs, request a quote, or learn more about how Tri-Lett can elevate your structural steel operations.
What Our Clients Say
Trusted by engineers, project managers, and procurement teams across the structural steel sector.
“From the initial quoting process to final delivery, working with Tri-Lett is professional, responsive, and efficient. They treat every job — large or small — with the same care.”
Procurement Manager
Northwest Energy Solutions
“We've been partnering with Tri-Lett for over a decade. Their design-for-manufacturing feedback alone has saved us substantial cost on multiple programs.”
Director of Operations
Regional OEM Manufacturer
“The quality certifications, the AISC membership, and above all the team's expertise gives us confidence that every weld and every cut is exactly right. We wouldn't go anywhere else.”
VP of Engineering
Industrial Systems Group
Become A Tri-Lett Partner
Join our network of Structural Steel contractors, engineers, and OEM partners.