DUCT FABRICATION Complete fabrication shop producing all types of sheet metal ductwork including rectangular and spiral. LEARN MORE ROOFTOP PRODUCTS Fabrication of a wide range or rooftop products including roof curbs, equipment rails, and curb adapters. LEARN MORE Contact US 1 Need more information? call or Submit the form to explore solutions tailored to you! 704-395-3289 curbs@carolinaspiral.com Hidden fields Product Inquiry: Duct & FittingsCurb AdaptersOther Rooftop Products Preferred Method of Communication: EmailPhone File Upload: