AWS D1.1 Structural Welding - Steel Certified Companies
The primary US welding code for structural steel fabrication and construction.
AWS D1.1 is the most widely referenced welding code in the United States, governing the design, qualification, fabrication, and inspection of welded steel structures. Compliance with D1.1 is required by the International Building Code (IBC) and virtually all structural engineering specifications for steel buildings and infrastructure. Fabricators working to AWS D1.1 must maintain qualified welding procedure specifications (WPS) backed by procedure qualification records (PQR), and all welders must pass performance qualification tests for the specific joint types, positions, and materials they will weld. Quality control must include visual inspection by certified welding inspectors (CWI) and may require additional NDE (radiographic, ultrasonic, magnetic particle, or dye penetrant testing). When verifying a fabricator's D1.1 compliance, ask to review their welding procedure specifications, welder qualification records, and inspection reports from recent projects. AISC certification programs verify systematic compliance with D1.1, making AISC certification a reliable indicator of a fabricator's welding quality systems.
AWS D1.1 Structural Welding - Steel Certified Companies
SteelFab
Alaska's largest locally-owned steel fabrication plant with 2,500 tons of inventory.
Greer Tank, Welding & Steel (Anchorage)
Leading tank and industrial fabrication company in Alaska since 1952.
JAMM Fabrication & Design
North Little Rock custom fabricator for industrial and commercial metalwork projects.
Hodge Fabrication Inc.
Locally owned Little Rock custom steel fabrication specialist since 1983.
K-zell Metals, Inc.
Custom metal fabricator in Phoenix with robotic welding capabilities since 1986.
Advanced Metal Sales (AMS)
AISC certified fabrication facility with AWS/ASME certified staff in Phoenix.
Accelerated Welding & Fabrication
AWS certified welding and fabrication company in Tucson with nearly 40 years of experience.
Jackrabbit Fabrication LLC
Code-certified structural steel and pipe welding fabricator in Tucson.
The Herrick Corporation
Major structural steel fabricator and erector serving the Western US since 1921.
Mathews Mechanical
AWS-certified custom metal fabrication and welding shop in San Francisco for 30+ years.
Longero
Heavy plate fabrication specialist handling up to 40 tons in Denver.
OG Welding and Steel Fabrication
Full-service welding and steel fabrication shop serving the Denver metro area.
Cedar Valley Steel
Premier Iowa steel erection and fabrication company for commercial construction.
Garbe Iron Works Inc.
Aurora steel fabrication shop founded in 1919 with 45,000 sq ft advanced facility.
Suburban Welding & Steel
Chicago-area custom metal fabrication company serving commercial clients since 1952.
Chicago Metal Fabricators
Chicago fabricator specializing in heavy-duty, large-scale manufacturing projects.
J.R. Hoe & Sons
AISC certified fabricator with structural, bridge, and highway component certifications.
Waukegan Steel
Midwest structural steel fabricator since 1929 behind Soldier Field, Navy Pier, and Willis Tower.
DNP Welding
Elgin full-service welding contractor serving Northeastern Illinois for 30+ years.
Chicago Metal Fabricators - Elk Grove
Elk Grove Village facility with AWS/MIL-STD certified welders for displays and enclosures.
Metal Arts LLC
AISC certified Wichita structural steel fabricator with end-to-end project management.
American Industrial Contractors
Certified welders providing metal fabrication in Lexington with 20+ years experience.
Mezco Fabrication LLC
Lafayette custom fabricator offering powder coating and CNC machining across Louisiana.
River City Metal Fabrication
Family-owned Baton Rouge fabricator specializing in commercial and industrial metalwork.
E-A Enterprises, LLC
Family-owned custom metal fabrication with 30+ years experience in Forest Hill, MD.
Down East Sheet Metal & Certified Welding
Certified welding and sheet metal fabrication serving the Greater Bangor area.
Riviera Industries
Leading Detroit-area metal fabrication with AWS certified welding services.
LeJeune Steel Company
Major structural steel fabricator producing 50,000+ tons annually since 1944.
Astro Metal Craft
Custom sheet metal fabricator serving architects, contractors, and food processors.
Industrial Welding & Machine (IWM)
Duluth industrial welding and machine shop with 70+ years fabricating the region's largest parts.
AWS D1.1 Structural Welding - Steel FAQ
What does AWS D1.1 certification cover?
Is AWS D1.1 certification required for structural steel fabrication?
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