Which type of hanger is often used for horizontal runs of ductwork?

Trapeze hangers are specifically designed to support horizontal runs of ductwork effectively. These hangers take their name from their trapezoidal shape and are particularly advantageous when it comes to creating a secure support system for duct systems that require support at both ends.

The key benefit of trapeze hangers is their ability to hold multiple ducts or pipes at once, often allowing for the support of two or more ducts simultaneously. By providing support along the length of the ductwork, trapeze hangers reduce the likelihood of sagging and maintain the alignment of the ducts, which is crucial for proper airflow and system efficiency.

In comparison, strap hangers are typically designed to hold individual ducts but may not provide the same structural support over longer runs. Witches hat hangers, while useful in some applications, are not primarily intended for typical horizontal runs of ductwork. Panduit hangers are often used for limited purposes, such as cable management, rather than for supporting ductwork. Thus, trapeze hangers are the preferred choice for supporting horizontal duct installations.