Architectural Detailing & Working Drawing

Design drawing vs working drawing; the coordinated set and what each sheet shows; line types and weights (object, hidden, centre, dimension, section, break, grid); scales by sheet; dimensioning to structure; levels (RL/FFL), north and the grid; title block, numbering, abbreviations and material hatching; CAD layering discipline.

The foundation plan as a setting-out drawing; isolated/strip/raft footings; the plinth beam, plinth filling and plinth level; the damp-proof course (DPC) and its position; anti-termite measures; the column-footing junction with dowels; and how RCC reinforcement is represented (covers, hooks, the bar bending schedule).

The wall section as the master integrating detail; masonry coursing and wall thickness; the lintel and chajja with its drip groove; the sill; floor build-up layers and junctions; slab-to-wall and parapet junctions; the RCC flat roof's slope and waterproofing and the rainwater outlet; the pitched roof; and the waterproofing principles — fall, turn-up, drip.

Keying openings on the plan to a door/window schedule; the schedule's columns; frame (chowkat) and shutter details — panelled, flush, glazed, louvred; fixing to masonry and RCC with hold-fasts and anchors; materials (timber, flush, UPVC, aluminium, MS); typical sizes and ventilators; ironmongery and glazing; and producing the joinery detail sheet (jamb, head, sill).

Stair geometry — going/tread, riser, the 2R+T rule, headroom and setting out; dog-legged vs open-well stairs; representing waist-slab reinforcement; toilet/wet-area fixture layout and clearances; the sunk slab; floor falls and the nahani trap; waterproofing, ledge walls and plumbing shafts; the kitchen detail; and coordinating service runs across the set.