The main requirementsmatch any staircase, including, and attic - safety and reliability. The same applies to the work performed during its installation. Each staircase to the attic must meet certain common requirements. If it is between the walls and handrails are not needed - its width is usually 0.8 or one meter. Otherwise, the presence of enclosing elements (handrails) is mandatory. In this case, between the balusters it is necessary to maintain a clearance of not more than 12 cm (accordingly, the width of the handrail must be at least not less than 12 cm). It is highly desirable to test the structure for strength. The ladder to the attic must withstand a load of two tons (in accordance with the norms of construction), and its elements must necessarily be non-combustible. With regard to the height of the handrail, the minimum allowed value is 90 cm. There are separate safety requirements and to the steps themselves. In particular, their width should exceed 26 cm, and height - 19 cm (and less).
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