Standard codes of practice do not establish clear or rigid criteria for limiting the deflection of structural members, this decision is left to the judgment of the professional design engineer.
| Deflection | Structural Member | Deflection Limitation | Load Combination |
| Vertical Deflection | Main frame rafters | Span/ 180 | Dead + Live |
| Roof purlins | Span/ 180 | Dead + Live | |
| 3 Mezzanine beams and joists | Span/ 240 | Dead + Live | |
| Top running crane (TRC) beams | Span/ 600 | Dead + Crane | |
| Underhung crane (UHC) beams | Span/ 500 | Dead + Crane | |
| Monorail crane (MR) beams | Span/ 500 | Dead + Crane | |
| Relative deflection of adjacent frames at point of support of UHC or MR beam. | Bay/225 | Crane only | |
| Relative deflection of UHC beams supported by the same frame. | Crane span/ 500 | Crane only | |
| Rigid frame rafters supporting UHC or MR beams running laterally in the building. | Bldg. span/ 500 | Crane only | |
| Lateral Deflection | Main frame columns with eave height (EH) up to 9.0 m | Eave height/45 | Dead + Wind |
| Main frames supporting top running cranes (TRC) or underhung cranes (UHC) | Eave height/60 | All | |
| Wall girts | Span/ 120 | Wind only | |
| Endwall wind columns | Span/ 120 | Wind only | |
| Portal frames | Eave height/45 | Wind only |
