Innovative fabrication services from a team you trust.

SteelFab operates thirteen fabrication facilities across the country, utilizing the latest high-tech machinery and cutting-edge computer-driven processes to bring the pieces you need to life with the precision you rely on.

Over 1,400 highly-skilled employees put their craftsmanship, knowledge, and passion into every piece that leaves our plants.

Our Process

Here’s how we bring each fabrication project to life:


Our facilities include several pieces of innovative CNC equipment that utilize the latest industry technology, including high-speed drilling, automated tool changing, and advanced part layout marking. This equipment can saw, drill, punch, shear, and burn every type of structural steel.

Using these automated machines, our facilities are capable of machining up to 2,000 tons of material each week.


  • Typical plates pass through machines capable of cutting plasma and/or oxy-fuel torches. This type of advanced equipment can also punch slots or drill holes using high-speed carbide drills.
  • Simpler shapes can be cut using 10’ wide shears and then bent using a press brake to make concrete pour stops, embeds, or other forms of bent plate detail.

Beams, Columns, Channel, Tubing, and Pipe:

  • Our facilities house several beamlines equipped with saws, drills, copers, cambering machines, and other necessary material handling equipment.
  • This equipment is housed outside of the shops to increase fabrication space and improve safety.
  • As each piece of material is machined, there are checks to ensure the dimensions are within tolerance of our internal quality standards.
  • Each piece created is barcoded, scanned, and documented.

Assembly & Fabrication

Once machining is done, our team begins transferring crucial dimensions from the drawings to the actual piece of steel. This information contains detailed part marks, exact dimensions, and the necessary weld symbols used for final fabrication.

Heavy Fabrication:

  • We have a dedicated shop for the fabrication of assemblies that weigh up to 120,000 lbs.
  • Using robotic-controlled Submerged Arc machines, our facilities are capable of building any dimension plate girder, box column, or truss that you require.

Truss and Frame Fabrication:

  • Some of our fabrication facilities have areas dedicated to the assembly of large frames and trusses.
  • By fabricating the finished assembly together, we’re able to ensure that the truss will fit properly when erecting the assembly in the field.


  • While each of our facilities has the capabilities to fabricate miscellaneous steel, our facilities in Rock Hill, SC; York, SC; and Oakwood, TX specialize in the manufacturing of stairs, handrails, ladders, and other non-structural metal products.
  • These custom-designed assemblies can be made from several different materials including stainless steel, brass, and aluminum.


Our facilities use robotic-controlled Submerged Arc Welding machines that increase welding speeds and reduce defects.

In addition to all of our welders being AWS-certified, all welds are inspected, documented, and approved by an AWS-certified welding inspector.


Our coatings department has an AISC certification for Sophisticated Paint Endorsement as well as a coatings inspector.

Within our heated coating facilities, we have the capabilities to apply any coating required. The fabricated steel is cleaned with a shot blaster to remove mill scale and rust. Coatings vary from standard shop paint to complex zinc-based multi-coat paint systems.

Quality Control

An inspection by one of the several AWS certified welding inspectors is the final step in the fabrication of every piece of steel. This evaluation covers welds, material imperfections, and several other aspects. 100% of welds are visually inspected. Ultrasonic Inspection and Magnetic Particle Inspection are performed when required by Project Specifications or building code.  We preform two different ultrasonic inspection methods:  Conventional and Phased Array.

In addition to final approval of material, the QC department regulates and assists with the fabrication to ensure that all codes and procedures are followed.


Once a material is delivered to one of our fabrication facilities from a trusted vendor, a standardized procedure is conducted to ensure that the material is within the tolerances listed in ASTM-A6 Standards manual. Each plant’s inventory is maintained by a software called Fabtrol, a database designed specifically for the steel fabrication industry.


Using forklifts and cranes, the finished material is safely loaded onto trucks to be sent to the job site. Our team has increased the accuracy of its shipping tickets by scanning bar codes on the fabricated material to generate a bill of lading. Our third-party shipping partners ensure timely deliveries of each load of steel.


To improve accuracy and increase efficiency, our team has implemented a barcoding system for tracking the production of material through our facilities as well as generating shipping tickets. Bar codes are applied to various labels including galvanize-resistant tags for traceability from the shop to the field. These highly visible tags quickly and easily communicate accurate information to workers in both the shop and the field.


Tablets give fabrication employees access to real-time drawings, revisions, and responses from detailers regarding fabrication questions. They also allow employees to zoom in on sections of drawings enabling them to reduce mistakes and downtime.


Robotic Welding

Our robotic welding system allows for one operator to tend to two stations, making it a versatile asset on the production floor. The system is fully integrated into our 3D modelling software, allowing us to go into fabrication using the most accurate and timely data.

Get your steel fabrication job done on time and with the highest quality possible