Double Stringer Staircase Detail Dwg

The foundation of any staircase DWG is the geometry. The drafter must determine the "Going" (run) and "Rise" based on the floor-to-floor height.

Standard Formulas:

DWG Implementation: In the CAD environment (AutoCAD, Revit, etc.), the drafter creates a "Rise/Run" array. The stringer is drawn as a line extruded at a specific pitch angle. The accuracy of this angle is critical; a deviation of even 1 degree can result in the stringer missing the landing connection by several centimeters over a long flight. double stringer staircase detail dwg

Project: 3-story atrium staircase for a tech office in Austin, TX. Spec: 48" wide open steel double stringer, 14 risers, 16-foot span. Challenge: The architect wanted a "floating" look, but the building code required a 300 lbs/sq ft live load. The foundation of any staircase DWG is the geometry

The DWG Solution:

| Material | Width (mm) | Depth (mm) | Thickness (mm) | |----------|------------|------------|----------------| | Steel C-channel | 150–200 | 200–250 | 6–10 | | Steel plate (cut) | 200–300 | 250–350 | 10–16 | | Concrete (cast) | 200–250 | 250–300 | n/a | | Wood LVL | 90–140 | 240–300 | n/a | DWG Implementation: In the CAD environment (AutoCAD, Revit,