Rebar detailing is the discipline of preparing 'shop/placing' drawings or shop drawings of steel reinforcement for construction.
Architect/Engineers(A/E) prepare 'Design Drawings' that develop required strengths by applying rebar size, spacing, location, and lap of steel.
By contrast, 'Shop/Placing Drawings' apply the intent of the 'Design drawings' for the ironworker. They call out the quantity, description, placement, bending shapes with dimensions and laps of the reinforcing steel. Various applications are used to produce bar bending schedules which can be directly fed into CNC machines that cuts and bends the rebar to the desired shapes.
The fabrication of the bars are scheduled and the placing/fixing sequence indicated, adding the elements required to support those bars during construction.
'Shop/Placing Drawings' are submitted to the A/E for review of compliance with design drawings before construction can proceed.
Rebar detailing is usually assigned to contractors' in-house teams, cut and bend companies, and rebar detailing companies. The great majority of rebar detailing companies are stationed in The Middle East and India. However there are a few Reinforcement Detailers in the United States.