: Depending on the design, stringers can be exposed for an "industrial" or "modern" look, or concealed to create a floating appearance where the center of the stair remains open.

A double stringer staircase features two structural members—known as stringers—positioned either underneath each side of the treads or on the outer edges.

: Precise dimensions for the horizontal walking surface (tread) and the vertical height between them (riser).

A professional CAD detail for a double stringer staircase typically includes several critical views and specifications:

: Detailed drawings of the stringer's baseplate connection to the floor and its attachment to the top floor or middle landing beams.

: These designs are commonly executed in steel (using U-profiles or I-beams) or timber . Key Components in a DWG Detail