The term “stringer” refers to the spine of your staircase. As the backbone of your stairs, the stringer is a critical element of any well-constructed staircase. Due to their style and durability, metal stair stringers have recently become a popular choice for contractors and DIY homeowners alike.
In the past, stringers were made from construction-grade lumber, and were installed in sets of three: one stringer on each side of the stairway, and one in the center. Wide stairways required a few extra stringers for support. In these conventional stairways, the stringer was actually built inside the walls, hidden in drywall or paneling, where it became part of the structure of the home.
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