Pressure Class vs Gauge Selection

For this duct at [pressure class], what gauge does SMACNA require? Can you confirm shop is fabricating to correct gauge?

I'm checking pressure class vs gauge selection at [location]. I found duct section with gauge marking, or table showing gauge vs pressure class. For this duct at [pressure class], what gauge does SMACNA require? Can you confirm shop is fabricating to correct gauge?

Rectangular Duct & Fittings 1st Year RED

Stop if

Hold point on pressure class vs gauge selection: I have the location, photo, drawing/detail, and what was checked. Who should verify before this gets cut, covered, lifted, sealed, energized, or signed off?

Watch out

Don't assume all duct is 26 gauge. Don't use light gauge for high pressure. Don't substitute gauge without engineer approval.

Check

room/grid/area
photo of condition
drawing/detail
manufacturer/model if visible
what I already checked

Say this to your foreman

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