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The folding staircase can have three design executions: folding (has the most difficult performance with a large number of joints and is folded like an accordion), telescopic (consists of several sections that are consistently advanced and fixed with the help of the shutters) or hinged (the simplest design of the stairs consisting of a staircase consisting of a staircase consisting of a staircase consisting of several sections interconnected by metal shoes with hinges) mechanism. In this case, in folded form, the staircase easily hides behind the hatch lid on the attic (or basement).