More than

Each staircase, which has more than three steps, must be equipped with a strong and reliable railing, which should have a height of at least ninety centimeters, windows that adjoin the stairs must be protected. The size of the step is obliged to ensure safe movement on the stairs. For a dwelling, the height should not fall out of less than twenty centimeters, and the width is lower than twenty -five centimeters, and the width of the race step in the passage zones by less than twenty centimeters. The levels of the last step must definitely coincide with the levels of the floors of your floor on which your staircase is located. The staircase is obliged to have a free passage.