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TDC Duct

For installers, Transverse Duct Connection (TDC) means consistent, roll-formed flanges, hemmed from the wall sheet, which produces less material waste, increases structural integrity and enables proper gasket seating. As a result, it is the most efficient manufacturing technique for many large-scale HVAC system types. We use an Iowa Precision Coil Line to create high-quality, rectangular duct systems for our customers, and corner-lock all duct connection types to produce an air-tight seal for your constructions.

Custom TDC components and fittings for your HVAC systems are fabricated to clip into place using standard cleats, and are professionally roll-formed and notched by TDC machine technicians to connect with minimal effort using standard gasket, bolts and nuts. We source and carry a full range of installation supplies from our trusted distributor network for your convenience.

Call us to get your HVAC system solution started!

Our TDC Solutions include:

Double Wall Construction

Single Wall Construction

Custom Components and Fittings


Success is built on relationships. For over 14 years Phoenix Metals has been a key partner in my company's success.

David Jarosinski, D&I Mechanical Contractors

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We want to work with you on your next project. Contact us today and let’s get started.