Basement Staircase B4 to B1 DWG Detail with Layout and Dimensions

The basement staircase B4 to B1 DWG detail with layout and dimensions provides a precise AutoCAD 2D drawing that illustrates stair design connecting multiple basement levels from B4 to B1. This drawing includes step arrangement, riser and tread dimensions, landing details, and structural alignment required for safe and efficient vertical circulation. It highlights accurate measurements, stair width, slope, and connection points between levels to ensure proper accessibility and compliance with design standards. This file is highly useful for architects, civil engineers, and builders working on basement and multi-level building projects.