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What do I do when not checking spiral diameter before grabbing coupling?

Spiral, Round & Oval Duct InstallPolished core starter — shop/detail check

Confirm the round/spiral/oval fitting and connection before forcing or cutting: not checking spiral diameter before grabbing coupling.

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In Spiral, Round & Oval Duct Install, I’m looking at: What do I do when not checking spiral diameter before grabbing coupling? What should I verify before I cut, drill, seal, cover, move, or install?

Do not

Do not force a wrong-size band or coupling onto the duct.

Why it matters

Project drawings/specs, shop standard, fitting orientation, sealing requirement, foreman direction, and approved round/spiral detail.

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