Typically used for supporting load bearing structures in the building and construction industry.
| Closed Length | Open Length | |
| 0 | 1070mm | 1820mm |
| 1 | 1750mm | 3120mm |
| 2 | 2007mm | 3350mm |
| 3 | 2590mm | 3950mm |
| 4 | 3200mm | 4870mm |
| Closed Length | Open Length | |
| 0 | 1070mm | 1820mm |
| 1 | 1750mm | 3120mm |
| 2 | 2007mm | 3350mm |
| 3 | 2590mm | 3950mm |
| 4 | 3200mm | 4870mm |