Staircase Core Layout Drawing with Ground First Second Floor Plans

This AutoCAD DWG drawing shows a complete staircase core layout prepared for an institutional building with clear vertical circulation planning. The drawing includes ground floor, first floor, and second floor plans with accurately aligned stair flights, a central stairwell, and surrounding corridor connections. Each floor plan defines stair width, landing size, wall thickness, column placement, and circulation clearances for safe movement. Section A A illustrates the full vertical relationship between floors, showing floor-to-floor height, stair slope, riser height, tread depth, slab thickness, beam positions, and roof profile. Structural elements such as reinforced concrete stairs, landings, and floor slabs are clearly detailed for execution. Handrail height, stair edge protection, and connection to corridor floors are shown for safety and usability. Floor levels, finished floor markings, and material notes support coordination during construction. The drawing also includes roof slope alignment, ceiling levels, and wall construction around the stair core. This staircase core drawing is suitable for architects, civil engineers, and builders working on multi-storey education or public buildings. It supports accurate planning, detailing, and coordination across AutoCAD, Revit, SketchUp, and 3D visualization workflows, making it ideal for construction documentation, approvals, and on-site reference. It is closely related to U-shaped staircase CAD drawings that provide 2D plans and 3D views for understanding stair geometry, circulation flow, and vertical connectivity in multi-storey buildings.