When choosing a material for creating a stairs to the basement, it must be borne in mind that in this room there is usually high humidity and poor ventilation. Therefore, the material should be resistant to moisture.
If the basement is not heated, it is better not to use wood, since it will deteriorate due to dampness. The material can be processed with special impregnations, but this will significantly increase the cost of the structure. Wood stairs are best used to arrange transitions between floors.
The concrete staircase is resistant to external influences, but it is a fairly bulky structure. Such a structure creates a serious load on the walls of the building. This option is suitable for arranging garage basements and various industrial structures.
To make the base for the stairs, determine the place where its lower end will be placed. Then they dig a hole with a depth of at least 80 cm. The width of the pit is made more than the chosen width of the stairs. The recess is filled with concrete, not reaching the edges of 15 cm. A mesh of rods with a diameter of 1.2 cm is installed in the solution. An anchor for 25 cm should act from the reinforcement. Extra ends must be cut. The distance between the anchors is determined by the width of the stairs. The remaining space is poured with a solution.
To create steps, a channel is welded in the form of a letter p. The ends of the channel are buried in the walls and pour the mounting places with the solution. This design has high strength and does not require installation. Ski marches are made of channel and scraps made of metal.