SMART Local 399 is a part of the Sheet Metal arm of SMART, formerly the Sheet Metal Workers International Association. Local 399 was founded in 1935 by 37 sheet metal workers employed at the Charleston Naval Shipyard in Charleston SC. From those humble beginnings, the local has expanded in both membership and influence. Today, Local 399 has over 450 members and covers the entire state of South Carolina.

What is Sheet Metal

The term “sheet metal” refers to any metal that can be formed into flat pieces of varying thicknesses. Using specialized tools, sheet metal workers cut, roll, bend, and shape these pieces to make a wide variety of objects such as ductwork, airplane wings, car bodies, refrigeration units, medical tables and storage units, building facades steel sheets, tubing, and signs. 

Local Projects

Our members have worked on many of the projects that make South Carolina the great state it is, such as:

  • University of South Carolina
  • The College of Charleston
  • Medical University of South Carolina
  • Savannah River Site
  • VC Summers Nuclear Power Station
  • BMW, Volvo and Mercedes

And that’s just to name a few. Local 399 is its members, and its members are part of the community. We are part of the fabric that makes this place we live in so special, and we work to continue that legacy for generations to come.

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