Working platforms are temporary structures that provide a suitable foundation for heavy construction plant, working machines (e.g. piling rig and cranes) and temporary construction elements (e.g. temporary lifting bridge or staging areas). Working platforms can be greatly improved by including high strength geosynthetics. This paper will describe some design consideration for these types of foundation structures which have a critical safety role in the construction industry. Some successful case histories will be presented at the end of the paper. Those case histories will present the soundness of this design method which is now well known around Europe, North America, and Asia.