Universal roof beams also known as “I” beams are most commonly used horizontally and are designed to carry heavy weight over large spans in building structures to support roofs and floors.
This span chart is a guide only
| Size | Roof Steel |
| 150 UB 14.1 | Span up to 3200 |
| 180 UB 16.1 | Span up to 4400 |
| 180 UB 22.2 | Span up to 5500 |
| 200 UB 18.2 | Span up to 4800 |
| 200 UB 25.4 | Span up to 6000 |
| 250 UB 25.7 | Span up to 6500 |
| 250 UB 31.4 | Span up to 7500 |
| 310 UB 32.0 | Span up to 7500 |