The stepladder is a free-standing portable ladder with a lifting side (front foot), a supporting side (rear foot), a working platform and folding for lifting to a height. In the upper part of the rear leg of the stepladder there is a cross member, which acts as a railing and ensures safety during work. For rigidity, there are diagonals on the hind leg. The working platform is made of waterproof laminated non-slip plywood, which is mounted on steel corners. Bowstrings and steps of a step-ladder are made of a high-strength aluminum shape. The steps have a grooved surface.