Reinforcement detailing is the discipline of preparing 'shop/placing' or 'fabrication' drawings or shop drawings of steel reinforcement for construction. Architects and Engineers prepare 'design drawings' that develop required strengths by applying reinforcement size, spacing, location, and lap of steel. There were distribution bars of 16mm diameter placed at 250mm c/c. There were main bar of 20mm diameter placed at 150mm c/c. For more details and information download drawing file.