Rectangular & Square Ductwork

Ductwork in Hospital Location Rectangular and Square duct has earned its place in traditional HVAC. Modern, automated fabrication of square and rectangular duct means low lead-time and great pricing, while rectangular duct offers the highest air carrying capacity for any given width and height of application.

At Hranec Corporation, we take a leading role in designing and fabricating your rectangular and square ductwork system. Our 21st Century Design methodology provides highly precise rectangular duct take offs to meet your most demanding specifications. Download our Catalog, or Contact Hranec today to learn more.

Simplicity and Economy

Ductwork in industrial location You want an HVAC solution that meets your timeline, budget, and specifications. Rectangular and square duct may be the best solution for your application.

Able to accommodate any transition and fitting with ease.
Pittsburgh, snap-lock, and similar seams allow for assembly without welding.
Multiple Connections: Slip & Drive, Bar Drive, Duct Mate, TDC or Welded.
Highest air carrying capacity for any given width and height of application.
Cut from sheet metal stock with ease for a low lead time.
Automated Design-to-Coil-Line AutoCAD eliminates labor intensive manual drafting.
Often the best choice where physical space limitations are a prime consideration.
Antimicrobial coating available for enhanced air quality. Perfect for application in hospitals, schools, commercial offices, day-care centers, and sports facilities.

Hranec is there for you with all the duct support, duct reinforcement, and duct connectors needed for your job. We are experienced with paint grip, galvanized steel, stainless steel, and aluminum.

We’ll shrink wrap and pack your order with care, making sure it arrives ready to go.

The Hranec Product Line

Ductwork on a flat roof To learn more about the Hranec product line, please Download our Catalog. Or contact Hranec today.

Rectangular Slip & Drive
Rectangular TDC/Ductmate
Rectangular Double-Wall
Rectangular Welded
Spiral Single-Wall
Spiral Double-Wall
Oval Single-Wall
Oval Double-Wall
Round Pipe Welded
Specialty Items & Accessories
Custom Metal Designs
All metals including: Galvanized G 60 and G 90, Stainless Steel, Aluminum, Paintgrip, PVC
Gauges 16 though 26

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.

Return to Top

Rectangular Duct Take Offs

At Hranec, our state-of-the-art 3D AutoCAD tools allow us to:

Find collision and problem areas before fabrication.
Minimize design mistakes and adhere to the most demanding specifications.
Maintain project data consistency, with all sections and elevations accounted for in the computer model.
Instantly report drafting figures to fabrication and estimating, even sending data directly to the coil line and plasma tables.

Learn more about our
21st Century Design capabilities.
3d Ductwork rendering

Hranec HVAC
Duct Work

In addition to Rectangular and Square ductwork, Hranec offers:

Spiral and Oval Ductwork
PVC Ductwork
Specialty Items and Accessories

At Hranec Corporation, you come first. You’ll know that from your very first call, so contact Hranec today.

All products adhere to
3rd Edition 2005
SMACNA standards

HRANEC Corporation • 724-437-2211 • FAX 724-437-2233 • Sales@HranecSpiral.com
Corporate Office & Fabrication Facilities • 763 Route 21 • Uniontown, PA 15401
Spiral Ductwork • Oval Ductwork • Polyvinyl Coated Ductwork • Square and Rectangular Ductwork

Spiral HVAC and Ductwork • Round Duct • Oval Duct • Flat Duct • Circular Duct • Rectangular Ductwork • Square Ductwork • Round Ductwork
PVC Duct Systems • Sheet Metal • Single Wall • Double Wall • Pre-Painted