The cheat sheet below is for selecting a mobile crane to lift a known weight at a set radius. This can be useful in part 2e (method statement and programme) and could also be useful during the design appraisal section of the exam, e.g. if the site is congested and there is limited space for a crane then that may affect your choice of structure.
As the table lists the absolute minimum size of crane that is capable of the lift, you may choose to go one size up so that the crane is able to lift the load comfortably.
Some authorities such as Network Rail require that certain types of crane are downrated to 75% of their stated capacity.
Note that this cheat sheet is only intended to be used for rough sizing, and should not be used on real projects without verification. The data was sourced manually from the charts/datasheets contained in Ainscough's 2006 Crane Book and may contain errors. A specific configuration may be required to lift the load.
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