Establishments primarily engaged in manufacturing sheet metal work for buildings (not including fabrication work done by construction contractors at the place of construction), and manufacturing stovepipes, light tanks, and other products of sheet metal.

• Air cowls, scoops, or airports (ship ventilators), sheet metal
• Awnings, sheet metal
• Bins, prefabricated: sheet metal
• Booths, spray prefabricated sheet metal
• Canopies, sheet metal
• Casings, sheet metal
• Coal chutes, prefabricated sheet metal
• Cooling towers, sheet metal
• Cornices, sheet metal
• Culverts, sheet metal
• Dampers, sheet metal
• Door hoods, aluminum
• Downspouts, sheet metal
• Ducts, sheet metal
• Eaves, sheet metal
• Elbows for conductor pipe, hot air ducts, and stovepipe: sheet metal
• Flooring, cellular steel
• Flues, stove and furnace: sheet metal
• Flumes, sheet metal
• Forming machine work for the trade except stampings: sheet metal
• Forms for concrete, sheet metal
• Furnace casings, sheet metal
• Guardrails, highway: sheet metal
• Gutters, sheet metal
• Hoods, range sheet metal
• Hoppers, sheet metal
• Housings for business machines, sheet metal except stamped
• Irrigation pipe, sheet metal
• Joists, sheet metal
• Laundry hampers, sheet metal
• Louvers, sheet metal
• Machine guards, sheet metal
• Mail chutes, sheet metal
• Mail collection or storage boxes, sheet metal
• Pile shells, sheet metal
• Pipe, sheet metal
• Post office collection boxes
• Radiator shields and enclosures, sheet metal
• Restaurant sheet metal work
• Roof deck, sheet metal
• Sheet metal specialties, not stamped
• Siding, sheet metal
• Skylights, sheet metal
• Spouts, sheet metal
• Stove boards, sheet metal
• Stove pipe and flues, sheet metal
• Studs, sheet metal
• Troughs, elevator: sheet metal
• Vats, sheet metal
• Ventilators, sheet metal
• Wells, light: sheet metal