Rectangular & Square Ductwork

Ductwork in Hospital LocationRectangular 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.
A proud Union shop, Hranec S.M.I. takes a leading role in designing and fabricating  rectangular and square ductwork systems.
Our 21st Century Design methodology provides highly precise rectangular duct take offs to meet your most demanding specifications.   Contact Hranec S.M.I. today to learn more.

Simplicity and Economy

Ductwork in industrial locationYou 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 S.M.I. 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 Sheet Metal Incorporated Product Line

Ductwork on a flat roofTo learn more about the Hranec product line, please Download our Catalog.  Or Contact Hranec S.M.I. 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 S.M.I. 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 S.M.I. today to learn how.


Return to Top