Field problem
Verify first
Verify before you commit. Cheap to catch now.
Treat supports as load-path work: hangers placed on removable fitting/door.
Keep service access clear before final hanger location. A hanger that blocks access can pass rough-in and fail service or inspection later.
In Hanger Systems, Rods, Straps, Trapeze & Anchors, I'm looking at: Hangers placed on removable fitting/door. What should I verify before I cut, drill, seal, cover, move, or install?