Spiral diameter before grabbing coupling not checked

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

Verify the round part size before forcing it. Close sizes can still be wrong sizes.

Round, Spiral & Oval Duct 2nd Year YELLOW

Stop if

Ask when finish/exposed spiral, connection type, seal method, support, or fitting orientation is unclear.

Watch out

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

Check

Check diameter
Check band/coupling/clamp size
Confirm piece mark

Steps

Verify size, fitting type, and airflow/branch direction.
Check the connection method: coupling, collar, flange, gasket, screws, or sealant.
Support the duct so weight is not deforming the joint.
Focus on the actual issue: not checking spiral diameter before grabbing coupling.
Photograph or mark the condition if someone else needs to approve it.

Say this to your foreman

In Spiral, Round & Oval Duct Install, I'm looking at: Spiral diameter before grabbing coupling not checked. What should I verify before I cut, drill, seal, cover, move, or install?