RCC Staircase Plan Section With 150 Thk Retaining Wall Detail

This AutoCAD drawing presents a detailed staircase plan and section layout with 150 thk RCC retaining wall construction and complete stair structural detailing. The drawing includes tread and riser dimensions, landing section, slab support arrangement, and vertical slab extension detail designed to prevent rainwater inlet in staircase areas. The file also shows 20 thk outer plaster in a 1:3 proportion, sectional retaining wall construction, floor level connection, foundation support, and stair reinforcement layout for accurate architectural and structural drafting. Multiple staircase sections and plan views are included to support residential and commercial construction documentation. This CAD file is useful for architects, civil engineers, builders, interior designers, and drafting professionals working with staircase planning, retaining wall detailing, and AutoCAD files for practical construction and site execution drawings with detailed dimension references.