What is the minimum thickness requirement for stainless steel used in duct construction?

The minimum thickness requirement for stainless steel used in duct construction, as stipulated by the NFPA 96 Standard, is essential for ensuring both durability and the ability to withstand the operational conditions of commercial cooking environments. Stainless steel must be thick enough to maintain structural integrity, resist corrosion, and provide effective protection against fire hazards. The standard specifies a thickness of .043 inches for stainless steel ducting. This thickness strikes a balance between being sufficiently robust for the demanding conditions found in commercial kitchens while also being light enough for practical installation and maintenance considerations. Therefore, choosing .043 inches ensures compliance with safety standards and enhances the overall effectiveness of the ventilation system.