Which component in a typical staircase is responsible for supporting the surface portion of stairs on which people walk?

Most stairs are composed of four main components, including the stringers, treads, risers, and swell step (also known as the starter step). The stringers, which run along the side of the stairs, are responsible for supporting other components and the weight of people walking on the stairs.

Asked by Rachel Bortles · Last updated 5 years ago · 8.1K views · SOURCE