This paper explores the technical specifications, structural considerations, and Computer-Aided Design (CAD) drafting standards associated with double stringer staircases. As a prevalent structural solution in both commercial and high-end residential architecture, the double stringer system offers a blend of structural efficiency and aesthetic transparency. This document serves as a guide for architects and drafters regarding the creation of comprehensive "DWG" (Drawing) details, focusing on connection methodology, tread integration, and geometric calculation.

Usually constructed from C-channels, rectangular hollow sections (RHS), or laser-cut plate steel.

Often 1/2" to 3/4" thick, laser-cut to the profile of the stairs.

Here is a sample DWG drawing of a double stringer staircase: