Underestimating the weight of a large duct assembly before rigging it overhead
4th YearSafety
Weigh or calculate the load before rigging anything overhead. Sheet metal duct weighs more than it looks — a 10' section of 48x24 duct can exceed 100 lbs.…
Safer field move
Weigh or calculate the load before rigging anything overhead. Sheet metal duct weighs more than it looks — a 10' section of 48x24 duct can exceed 100 lbs. Use proper rigging rated for the load with a safety factor of at least 4:1.
Ask Foreman
Can you verify this before I keep going? I’m looking at: Underestimating the weight of a large duct assembly before rigging it overhead. What’s the approved correction for this job?
Do not
Do not hide, force, cover, or “make it work” if this affects safety, access, airflow, rated assemblies, supports, equipment, or inspection. Stop and verify the approved correction.