Stairs are as important for multi -storey buildings as pyrolysis boilers for heating. They can be used for various purposes. In multi -storey urban buildings and buildings, they perform a holding function. They are an additional source of support for any structure. In residential multi -storeyed country houses and cottages of stairs are not only structures to climb the upper floors, but perform a decorative function. They are selected taking into account the characteristics of the interior.
