Since stringers carry the entire load of the stairs, they must be securely fastened at the top.

Depending on the depth of the second-floor framing, it may be difficult to secure the stringers to the header at the top of stairs. Three different methods, each with a different way of handling the top tread, are shown here. A fourth way (not shown) is to use metal hardware, such as Mitek CSH clips or Simpson Strong-Tie LSC adjustable stringer connectors.
Depending on the depth of the second-floor framing, it may be difficult to secure the stringers to the header at the top of stairs. Three different methods, each with a different way of handling the top tread, are shown here. A fourth way (not shown) is to use metal hardware, such as Mitek CSH clips or Simpson Strong-Tie LSC adjustable stringer connectors.

For more details on building stairs, visit the JLC Field Guide.