Zinger Sheet Metal offers single wall and double wall oval duct work for many applications. We have the capabilities to make spiral oval from 6” minor up to 32” minor. Please consult factory for options on sizes outside of this range.

Construction Standards

  • SMACNA Standards (2”, 4”, 6” and 10” WG recommended for positive pressure only, consult factory for negative pressure applications)
  • Customer Specific Standards

Available Materials

  • Galvanized G60 and G90
  • Galvaneal (Paint Grip)
  • Aluminum
  • 304 Stainless Steel
  • 316 Stainless Steel
  • Polyvinyl Coated Steel (PCD, PVS) above ground only

Optional Liner

  • Double Wall 1”, and 2” thickness
    • Perforated inner with fiberglass insulation
    • Solid inner with fiberglass insulation
    • Optional Mylar Facing


  • Slip Fit & Couplings
  • DuraFlange
  • AccuFlange
  • Angle Ring (companion flange)