A hanger rod cut too short means the trapeze cannot reach the correct elevation or the rod may not fully engage the anchor/hardware. Check whether a proper rod coupling extension is allowed, or whether the rod/anchor needs to be reset.
Ask before moving anchors, changing spacing, deleting supports, drilling structure, or altering trapeze/seismic layout.
Watch out
Do not load duct weight onto a rod that is too short to properly engage the anchor, nut, trapeze, or hanger hardware.
Check
Measure how short the rod is and compare it to the needed finished elevation.
Check whether a threaded rod coupling and extension is allowed by the approved detail, job standard, and foreman direction.
If the rod barely engages the anchor or hanger hardware, do not load it
it likely needs to be replaced or reset.
Do not stack multiple couplers or create a sketchy extension to make up length.
Mark the short rod so nobody loads it with duct weight before it is corrected.
Steps
Measure how short the rod is and compare it to the needed finished elevation.
Check whether a threaded rod coupling and extension is allowed by the approved detail, job standard, and foreman direction.
If the rod barely engages the anchor or hanger hardware, do not load it
it likely needs to be replaced or reset.
Do not stack multiple couplers or create a sketchy extension to make up length.
Mark the short rod so nobody loads it with duct weight before it is corrected.
Say this to your foreman
I cut this hanger rod about inches too short. Can I use an approved coupling and extension to make up the difference, or do you want the anchor/rod reset?