A double stringer staircase features two structural members—known as stringers—positioned either underneath each side of the treads or on the outer edges.
A provides the precise architectural and structural blueprints required to construct a staircase supported by two parallel beams. Unlike minimalist mono-stringers, this "double" configuration distributes weight evenly on both sides of the treads, making it a robust choice for wider stairs or heavier loads. What is a Double Stringer Staircase?
A professional CAD detail for a double stringer staircase typically includes several critical views and specifications: double stringer staircase detail dwg free
: 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.
Several platforms offer free or low-cost CAD blocks and architectural details: What is a Double Stringer Staircase
: Callouts for specific profiles, such as UPN steel profiles or heavy-duty timber joists.
: Detailed drawings of the stringer's baseplate connection to the floor and its attachment to the top floor or middle landing beams. : Detailed drawings of the stringer's baseplate connection
: Precise dimensions for the horizontal walking surface (tread) and the vertical height between them (riser).
concealed tread step double stringer steel staircase CAD - Arcat