Apprentice answer

What's the proper gauge of hanger strap for medium-pressure ductwork

1st YearHangers, Supports & AnchorsCheck first

Typically, 16-gauge or 18-gauge galvanized steel hanger strap is specified for medium pressure systems, depending on the absolute width of the duct. Check the SMACNA hanger tables to match gauge to your specific duct perimeter weight.

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Plain-English answer

Field checklist

Typically, 16-gauge or 18-gauge galvanized steel hanger strap is specified for medium pressure systems, depending on the absolute width of the duct. Check the SMACNA hanger tables to...

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Hey boss, I’m checking hangers & supports: What's the proper gauge of hanger strap for medium-pressure ductwork? I found the likely issue and want to verify the next step before I lock it in. Do you want me to adjust it now or check the drawing/detail first?

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Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.

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