Staircase Detail Section Elevation with 150 mm Riser and 300 mm Tread

This staircase detail drawing shows a clear sectional elevation with precise stair design suitable for residential and commercial buildings. The layout illustrates a straight flight staircase with intermediate landing and proper floor level coordination. Typical riser height is defined at approximately 150 mm with tread depth around 300 mm to ensure safe movement. The drawing highlights RCC waist slab thickness handrail slope and balustrade fixing details. Wall connections passage clearance and step alignment are accurately represented for execution clarity. Material hatching identifies concrete masonry and finished surfaces for better understanding. This staircase detail AutoCAD file supports stair design coordination for architects civil engineers and interior designers working on detailed construction drawings.