THE 3T METHOD
When building a BOSS tower:
●
To comply with the Work at Height Regulations we show
assembly procedures with platforms every 2 metres in height,
and, the locating of guardrails in advance of climbing onto a
platform to reduce the risk of a fall.
●
All platforms feature double guardrails on both faces of either
individual platforms or fully decked levels.
●
All guardrails should be 1 and 2 rungs (0.5m and 1.0m)
above platforms.
●
Never stand on an unguarded platform positioned above the
first rung of a tower. If your risk assessment shows it
necessary you may also need to guardrail platforms at this
level.
●
Always start building with the smallest height
frames at the base of the tower:
Platform Heights in Metres
Frame
at Base
1.7 2.2 3.7 4.2 5.7 6.2 7.7 8.2 9.7 10.2 11.7 12.2
2 rung
2.7 4.7 6.7 8.7 10.7
3 rung
1.2 3.2 5.2 7.2 9.2 11.2
4 rung
Where all 3 frame heights are used in a tower, start with 2
rung frames at the base, with the 3 rung frames nexts and the
4 rung frames on the top.
Refer to the quantity schedules for detail.
To dismantle a BOSS tower:
●
Remove toeboards, and pass down the tower.
●
Unclip farthest end of braces and immediately go to protected
trapdoor position on ladder to complete removal.
●
Remove upper platforms from protected platform levels below.
●
Pass removed components out of the tower to a colleague.
11
Assembly and dismantling procedures
