Cross-Breaking And Beading
Panel oil-cans, rattles, or fails a rigidity check
Green / Field Check2ndBatch 4
What This Helps With
Panel oil-cans, rattles, or fails a rigidity check
Apprentice words: cross break
Trade terms: cross break, beading, stiffening bead
Check First
Whether the spec/pressure class requires cross-break or beading at that size
What Not To Do
Assume every duct needs it — it's size/pressure driven
What can go wrong: Skipping stiffening on wide low-pressure panels
Better Foreman Question
Does this size need cross-break, beading, or tie rods for the pressure class?
Verify With
Reference type: SMACNA
Source to verify: SMACNA reinforcement schedules
Safe wording: Explain purpose; the trigger size/spacing is per SMACNA and pressure class.