Metal Supply technicians on lifts installing steel pieces in a large structure.

MSI Structural Steel is your reliable and preferred supplier for projects requiring Structural Steel Fabricators and Steel Erectors.

California State Contractors License # 953753, C 51 Structural Steel

Fabricators and Structural Steel Erectors.

MSI structural Steel is conveniently located in South Gate, California, within proximity to all Los Angeles metropolitan area freeways.

We have been serving the Los Angeles basin since 1962.

From large challenging projects to small quick turnaround jobs, we can meet all your needs for jobs requiring structural steel fabricators and steel erectors.

  • Turnkey detailed drawings
  • State of the art 3 D Software and modeling
  • 200 employees
  • 90,000 sq. ft. structural steel fabricator shop
  • CNC Plate fabricators
  • CNC Beam Lines
  • In house truck fleet – tractor trailers
  • Emergency response division for fast turnaround projects
  • Experienced Project Managers

If you require experienced structural steel fabricators and steel erectors, we are your first option.

Steel framed structures with decking

Metal Buildings

Large Residential homes

Commercial Office Buildings

Commercial Retail Centers

Government Buildings

Mass Transit Projects


School and University Buildings

Industrial Facilities

Heavy Industrial Facilities