Oversized Steel Ductwork


We custom design, fabricate, test, and deliver round, square, and rectangular heavy-welded ductwork for multiple industrial applications.

We supply fabricated heavy carbon steel and stainless steel duct to the various industrial markets for many different applications.

Custom-manufactured ductwork meets the exacting standards of the particular industrial process. Dixie Southern is an ASME accredited manufacturing facility with decades of experience fabricating, assembling, and inspecting heavy welded ductwork for industrial applications. At our 12 acre, 65,000 square foot manufacturing facility in West Central Florida, we have the capacity to fabricate your ductwork, no matter the dimensions or application.


  • Carbon steel and stainless steel ductwork
  • Round, square, or rectangular ductwork
  • Oversize and overweight capabilities
  • Rolled and welded ductwork

With decades of experience in heavy steel ductwork fabrication, our means and methods address vital fabrication areas, such as:

  • Tolerances
  • Weld Quality
  • Insulation
  • Finishing

Oversized Steel Ductwork Industries Served

We serve the exacting needs of facility operators, EPC contractors, general contractors, and OEMs in multiple industries.

Oil & Gas

Chemical Treatment

Food & Beverage Processing

Mining & Minerals


Power Generation

Water & Wastewater Treatment

Pulp & Paper

Waste Treatment


Structural Facilities AISC Certified

Standard for Steel Building Structures with the Sophisticated Paint Endorsement P2

Plate/Vessel Facility ASME Accredited

S and U Stamp Fabrications

AWS Certified Welding Fabricator

National Fire Protection Association Member

Fireline V Certified

Field Services Division National Board Accredited

R Stamp for Repairs, Alterations, and Rerating of Pressure Retaining Items

UL Certified

Supply Chain Certification

ISNetworld Contractor

Contact Us for an Oversized Steel Ductwork Quote