2D Spiral Staircase Plan Dimensioned AutoCAD DWG File Design

This 2D spiral staircase AutoCAD DWG file presents a detailed spiral staircase design with precise circular geometry, a central support column, and evenly distributed steps. The AutoCAD staircase drawing illustrates a 2d spiral staircase layout suitable for compact architectural spaces, including residential and commercial projects. The spiral staircase CAD DWG file is developed with a clear plan view, showing step alignment, turning radius, and structural flow for easy construction understanding.