This type of scaffolding is also referred to as ladder scaffolding. This is a modified form of double scaffolding but steel is used instead of timber. There are patented scaffolds which are readily available in the market with special types of couplings and frames. Here, the working platform is supported on a bracket which can be adjusted to any suitable height. Such patented scaffoldings are used to light works like painting or decoration, Fig. 22.8.
Figure 22.8 Patented steel scaffolding
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