HRANEC Submittals Page

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Spiral Ductwork Submittals

SubmittalsSingle Wall Spiral Submittal (PDF)

Double Wall Spiral Submittal (PDF)

Rectangular Ductwork Submittals

Rectangular Ductwork (PDF)

Double Wall Rectangular Ductwork (PDF)

Welded Rectangular and
Round Ductwork Submittals

Welded Rectangular and Round Ductwork Submittal (PDF)

Double Wall Oval Submittals

Double Wall Oval Submittals (PDF)

Single Wall Oval Submittals

Single Wall Oval Submittals (PDF)

Download the Hranec Catalog

Download our Catalog today (PDF)Get Adobe Acrobat

Contact Hranec Corporation

Contact Hranec today for a fresh approach. Our staff brings production values together with customer service to make your life easier and your project more profitable.

Meeting SMACNA Standards


Whether your need is for Spiral and Oval Ductwork, Polyvinyl Coated Ductwork, traditional Square and Rectangular Ductwork, or any of Hranec’s specialty items, accessories, and custom metal work, your experience with Hranec will give you the peace-of-mind to come back to us again and again. 

Service Area

Hranec Corporation provides quality HVAC spiral duct and traditional rectangular ductwork nationwide. With HVAC fabrication facilities located in the Pittsburgh region, Hranec services HVAC duct work needs in Pennsylvania, Ohio, Maryland, and across the nation. No matter your location, Hranec’s dedication to providing the best lead-time, best price, and best service will win you over.  Contact Hranec today to learn how.

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