OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 23 Scaffolds and Temporary Work Platforms

Section 336 Ladderjack scaffold

Figure 23.10 shows a typical ladderjack scaffold. The ladderjack scaffold brackets must be supported by the side rails of the ladder to which they are attached or have at least 90 millimetres (3½ inches) of width resting on the ladder rung. Doing so ensures that the weight of the scaffold is safely transferred onto the ladders.

Figure 23.10 Typical ladderjack scaffold. Since the working platform is more than 3 metres above the ground the workers are using personal fall arrest systems

Figure 23.11 shows a commercially manufactured aluminum plank that could be used on a ladderjack scaffold.

Figure 23.11 Commercially manufactured aluminum plank

Readers are referred to section 349 of this Explanation Guide for a discussion of the term “commercially manufactured”.