Scaffolding, also called scaffold or staging, is a temporary structure used to support a work crew and materials to aid in the construction, maintenance and repair of buildings, bridges and all other man made structures. Scaffolds are widely used on site to get access to heights and areas that would be otherwise hard to get to. Unsafe scaffolding has the potential to result in death or serious injury. Scaffolding is also used in adapted forms for formwork and shoring, grandstand seating, concert stages, access/viewing towers, exhibition stands, ski ramps, half pipes and art projects. There are five main types of scaffolding used worldwide today. These are Tube and Coupler (fitting) components, prefabricated modular system scaffold components, H-frame / facade modular system scaffolds, timber scaffolds and bamboo scaffolds (particularly in China). Each type is made from several components which often include: A base jack or plate which is a load-bearing base for the scaffold. The standard, the upright component with connector joins. The ledger, a horizontal brace. The transom, a horizontal cross-section load-bearing component which holds the batten, board, or decking unit.
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