- 20' roll trailers to be stacked a maximum of 5 units high
- 40' roll trailers to be stacked a maximum of 4 units high
- 40' roll trailers to be stacked wheels above wheels
- 60' roll trailers to be stacked a maximum of 3 units high
- 72' roll trailers to be stacked a maximum of 3 units high
- 80' roll trailers to be stacked a maximum of 3 units high
Timber should be used under the wheels of roll trailers without steel plates above the wheels in order to prevent the wheels from breaking through the wooden floor.
It can be applied differently depending on deck height.