Stair structure elevation and sectional detail CAD constructive block autocad file, side elevation detail, riser and thread detail, concrete masonry detail, shade detail, scale 1:25 detail, namings detail, section A-A detail, reinforcement detail in tension and compression zone, riser height detail, thread with detail, steps detail, section B-B detail, section C-C detail, section D-D detail, main and distribution bars detail, stirrups detail, reinforced concrete cement (RCC) structure, stone masonry detail, hook and bends detail, etc.