How Many Stringers for Stairs?

If cut stringers are used in the stair construction, then at least three stringers are required. Cut stringers should be spaced no more than 18 inches on center. For example, a 36-inch-wide stairway should have three stringers. If the stairway is wider than 36 inches, four stringers should be installed.

How Many Stringers for Stairs?

When it comes to designing and building stairs, the number of stringers needed is an important factor to consider. Stringers, also known as risers, provide the structural support for the stair treads and are an integral part of the overall structure. The number of stringers used is determined by the size and shape of the stairs, as well as the type of material used to construct them.

In general, the number of stringers used for a staircase depends on the type of stairs being built. For straight stairs, one stringer is usually required for every step. For curved or spiral stairs, two or more stringers may be needed to provide the necessary support. If the stairs are more than 30 inches wide, two stringers are often needed. The number of stringers can also vary depending on the type of material used to construct the stairs.

For example, if concrete is used for the stairs, two stringers are typically needed for each step. On the other hand, if wood is used for the stairs, one stringer is usually sufficient. It is also important to consider that the number of stringers needed may also be affected by the load requirements of the stairs. If a larger load is expected, more stringers may be required

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