Type of Work Codes

  • Commercial Heating, Ventilating, Air Conditioning - HVAC
  • Residential Heating &Air Conditioning - HAC
  • Architectural Sheet Metal - ASM
  • Industrial Sheet Metal - ISM
  • Kitchen Equipment (Food Service) - K
  • Manufacturing (sale to others) - MFG
  • Testing & Balancing - TB
  • Testing, Adjusting & Balancing Bureau - TABB
  • Siding & Decking - SD
  • Custom Fabrication - CF

Tri-Metal Fabricators

% of Gross Volume
  • HVAC: 5%
  • ASM: 1%
  • ISM: 14%
  • MFG: 80%