During the construction of a two -story building, it is necessary to consider the way the way to the second floor must be considered qualitatively. For this, inter -story stairs are used. Today they can be made of metal or wood. These are two main materials that have excellent strength and durability. They also go very well with other materials. For example, a metal staircase can be with marble steps. As for the tree, the degree for stairs made of metal is very often made from it very often.
Stairs in the house: what the most convenient
