At what maximum interval must ducts be supported?

For the support of ducts, the maximum interval is crucial to ensure system integrity, safety, and efficient airflow. Ducts that are not adequately supported can sag or deform, leading to leaks, reduced efficiency, and potential system failure. The internationally accepted standard for duct support intervals generally mandates that ducts must be supported at a maximum distance of 10 feet. This standard provides a balance between structural support and cost-effectiveness in installation.

While other intervals such as 8 feet, 12 feet, or 15 feet may be suitable for specific applications or materials, they do not represent the widely endorsed maximum support distance for standard ductwork. Therefore, maintaining support at 10-foot intervals aligns with industry practices and regulations, ensuring reliable duct performance.