What gauge should a clothes dryer exhaust duct be at a minimum?

The appropriate minimum gauge for a clothes dryer exhaust duct is 28 gauge. This thickness is essential for ensuring that the duct can withstand the heat and pressure generated during the drying process while also minimizing the risk of kinking or collapsing, which could impede airflow. A duct that is too thin may not only sag or bend under the weight of accumulated lint but could also pose a fire hazard due to excessive heat buildup.

In residential applications, using a 28 gauge duct helps provide a good balance between durability and functionality, allowing for efficient exhaust flow, which is crucial for optimal dryer performance and safety. This gauge supports maintaining clear airflow, which reduces the risk of lint buildup and potential fires. Choosing a gauge that doesn't meet this minimum requirement could lead to operational issues or safety hazards.