Manufacturing HVAC Duct

HVAC ductwork acts as a conduit to transfer conditioned air from one space to another, mostly from a furnace, air handler, fan, or HVAC equipment to a space nearby. Today, HVAC ductwork is typically fabricated from galvanized sheet metal, but can be formed from other metals as well.

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Our HVAC Ductwork

We fabricate over 10 million variations of our products, including: size, shape, connection, seam, insulation, gauge, metal, double wall, and reinforcements. Most manufacturing facilities can streamline their products by only making a few variations, but custom ductwork doesn’t allow for this. At United Team Mechanical our HVBAC ductwork is custom – built to each job specification.

Quality is often a buzzword many businesses use, but what is quality duct? Does ductwork pass as quality simply because it looks good? What standards do you measure quality with?

United Team Mechanical follows theory of constraints and lean manufacturing principles – why does that matter? As we improve processes, you get a more competitive price on ductwork. We continue investing to improve our people, process, and product.

Quality Suppliers

In our duct fabrication shop, we begin our quality control with our suppliers, you cannot have a quality product without having the right raw materials. In our case, we buy American steel that is properly coated.

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HVAC Fabrication and Manufacturing

Custom Manufacturing

Our 25,000 sq. ft. building allows us to manufacture a variety of products at high volumes. We can produce up to 4,000,000 lbs of ductwork and accessories a year.

Serving These Industries


Research, Technology

Commercial, Office

Higher Education

Choose Your HVAC Ductwork

Space Availability

Branch systems typically require larger amounts of space. Ceiling space is always a concern and needs to be taken into account when choosing between round and rectangular duct. When transporting duct, however, rectangular can be shipped broken down and is cheaper to ship.

Installation Costs

Installation costs are determined by the complexity of the HVAC system and the height complexity of the site. Round typically is the fastest to install because of the 10′ lengths, less joints, no tie rods and no assembly. Rectangular and flat oval are similar in installation time.


Round and flat oval are the simplest to insulate, rectangular require stick pins when larger duct is in play. Rectangular duct can also be lined much easier than round duct.

Air Friction Loss

Size and shape have a dramatic impact on air friction loss. Rectangular ductwork has the highest loss per linear foot (excluding flexible ductwork) and round ductwork has the least loss per linear foot.


Rectangular duct leaks more due to the increased longitudinal and transverse duct connections. Round and flat oval are self-sealing longitudinal and require less duct connections.

Code Requirements

To prevent common problems, energy codes dictate the type, shape of duct. These codes must be observed and vary from region to region.

Frequently Asked Questions

How do I tap into existing ductwork?

There are four main ways to tap into an existing ductwork:

  1. Cut in a high-efficiency take off (HETO)
  2. Spin-ins taps
  3. Dove-tail straight pipe
  4. Add a tee

Where can I buy sheet metal?

You can buy our sheet metal at our location at 151 N 600 W, Kaysville, UT, 84037, or at Hercules Industries or Reliance Metals.

How much does sheet metal cost?

Galvanized flat sheet metal costs around $1.50 per pound, depending on gauge.

What is sheet metal?

Sheet metal is thin, flat metal formed in a heavy industrial process. Typically this metal is used for architectural, HVAC, and other construction purposes.

How much does ductwork cost?

A quick and dirty method to calculate ductwork is on a per pound basis. Standard 26-gauge galvanized ductwork without installation, is around $4.00 per pound.

What is ductwork?

Ductwork is a branching network of round or rectangular tubes generally constructed of sheet metal, fiberglass board, or a flexible plastic and wire composite material located within the walls, floors, and ceilings. The three most common types of duct materials used in home construction are metal, fiberglass duct board, and flex-duct.

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