Sheet Metal | Western Technical College

Sheet Metal

Sheet metal workers make, install, and maintain air-conditioning, heating, ventilation, and pollution control duct systems; roofs; siding; rain gutters; downspouts; skylights; restaurant equipment; outdoor signs; and many other products made with metal sheets. They also may work with fiberglass and plastic materials. Although some workers specialize in fabrication, installation, or maintenance, most do all three jobs.

Working Conditions

Sheet metal workers who fabricate sheet metal products work in shops that are well-lit and well-ventilated. However, they stand for long periods and lift heavy materials and finished pieces. Those performing installation work do considerable bending, lifting, standing, climbing, and squatting, sometimes in close quarters or in awkward positions. Although duct systems and kitchen equipment are installed indoors, the installation of siding, roofs, and gutters involves much outdoor work, requiring sheet metal workers to work in various kinds of weather.


  • Five-year program
  • 8,480 hours on-the-job training
  • 520 hours paid related instruction
  • 250 hours unpaid related instruction
  • Additional related instruction may be required

Classes include drafting, plan, and specification reading, trigonometry and geometry applicable to layout work, the use of computerized equipment, welding, and the principles of heating, air-conditioning, and ventilating systems.

Application Requirements

  • High school diploma or equivalent
  • Meets required norms on ACCUPLACER test
  • Physically able to perform trade work
  • Valid driver's license or reliable transportation