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Different Types of Ductwork Takeoffs

ductwork takeoff

Whenever you are working on a project, it is important to understand how to properly conduct ductwork takeoffs. There are several different types of takeoffs, including round, conical, and stagger branch takeoffs. You can learn more about each of them in this article.

Stagger branch takeoffs

Using stagger branch takeoffs for ductwork can improve the airflow and reduce the time it takes to change directions in ducts. However, before you go out and install a new branch, you should consider how your choice will affect the overall performance of the duct system.

There are several different styles of takeoffs to choose from. For example, you can choose between a round or rectangular takeoff, and a High-efficiency Takeoff (HETO) or an Air-in-a-Box (AAB).

For instance, a HETO has a large opening at the bottom to capture more air. An AAB is a bit smaller. You may also consider a High-efficiency Takeoff with a pre-installed balancing damper. This is also a good way to make sure that you have smooth airflow pathways.

A duct takeoff is a metal fitting that connects the main duct to the subsidiary branch. These fittings are commonly used in duct system installation. They can be attached using metal tabs or snap-in attachments. They are usually installed at least two feet from where air is changing directions. They can also be sealed with adhesive foam gaskets.

A round takeoff, on the other hand, is the simplest of all the different types of branch takeoffs. It can be constructed from scrap sheet metal pipe or elbow. These takeoffs are the most common and cost-effective of all the takeoff types. However, they are not as good for the airflow as the next takeoff on the list.

A directional takeoff, on the other hand, has a metal scoop at the top that will catch air as it flows through the duct. This is a great way to improve airflow if you have a round duct. However, a directional takeoff can be a headache to install, since you have to ensure that you have the right size opening. This is especially true for the smallest sized takeoffs, as you need to install an appropriate reducer to get the tees to fit correctly.

The best duct takeoff is the one that fits your budget. A round takeoff is the most common type, but you can also find conical and rectangular takeoffs. You should consider the size of the duct and whether you need to install a balancing damper in order to make sure that you are getting the most airflow for your money.


Several styles of takeoffs are commonly used in duct system installations. Each type has a different effect on the airflow, but they all come in a variety of sizes and shapes. To find the right takeoff for your needs, it’s important to understand what the different types are and which ones work best. There are three main types of takeoffs: Rectangular, Conical, and Round. There are also many variations of these designs. When it comes to the design of ductwork, it’s important to look at all the different details.

The rectangular takeoff is a better choice for airflow performance than the other two types. The rectangular duct is flat on one side, and tapered on the other. This allows the duct to capture more volume on a smaller space. Rectangular ducts can be adapted to a variety of situations. In addition, a rectangular duct can be adapted to the ceiling height of a room. This allows the contractor to easily maneuver through the challenges of the height of a ceiling.

In this article, I’ll discuss the different types of takeoffs. There are several ways to accomplish a branch takeoff. However, you’ll need to make sure you transfer the air effectively. There are several different types of connections, as well as seams and couplings. Some ductwork installations don’t fit the Two-Foot Rule, so it’s important to check the specifications before buying ductwork.

The High-efficiency Takeoff is a takeoff that is priced on the high end of the market. This type of takeoff is designed to make the transition from rectangular duct to round. It’s usually priced in the $200-$300 range, but it also includes a balancing damper. A balancing damper will help control airflow and keep the duct’s opening open. The High-efficiency Takeoff also has a large opening, allowing for easy entry of air. This type of takeoff can also be installed on a wide range of materials, from copper to a plastic liner. It also includes a pre-installed balancing damper for better airflow performance.

The Conical takeoff is another common type of commercial takeoff. It’s designed to be wider at the base, and narrower at the branching size. The Conical can be slipped over a reducer collar, instead of being mounted to the duct. It also is available in an odd angle version. This type of takeoff is often used when the branching size is smaller than the diameter of the Conical.


Various styles of takeoffs are commonly used in duct system installations. While there are several styles, the most apropos of them all is the round one. With the proper selection, you should reap the benefits of proper airflow and reduced ductwork cost.

A round takeoff has got to be the most common type of branch takeoff. It’s an aesthetically pleasing and functional item that mounts to the vertical side of a Rectangular duct. A Conical is a bit more asymmetrical. A Conical may be a bit harder to install, but that is not to say it is any harder to use. Conicals are not the same as their rectangular counterparts, but the benefits are similar. Depending on the style, a Conical may be more expensive than a similar sized rectangular takeoff. A Conical is the sexiest of the bunch, but they aren’t cheap. The cheapest Conicals may cost upwards of $500. They are made of galvanized steel, which may be an issue depending on local construction regulations.

Conicals can be found in commercial ductwork applications. They are commonly accompanied by a flangeless factory spun groove that helps lock in the fitting. The aforementioned flangeless groove is not only convenient, but it also saves you from having to buy the same sized duct fittings over and over again. A conical is a bit more expensive than a comparable rectangular duct, but it’s worth it. It’s also a clever design that saves you from having to splice in a new branch duct.

Conicals are not for everyone, but they have their place. There are several varieties that may be used in conjunction with a round duct, such as the conical and directional takeoffs, as well as a number of round to rectangular transition fittings. Regardless of the type used, it’s important to know a bit of information about these devices before installation. The best way to go about it is to consult a duct installation expert and discuss the pros and cons with them. The result may be a new airflow solution for your business. The right duct fittings can be the difference between a good year and a bad one. The wrong ones could be costly to fix or even more expensive to replace. This is the main reason you need to make sure you’re buying the best duct fittings you can afford.