Architectural Drawings
Architectural drawings are drawn to scale, that of eight feet to one inch being general, with working drawings to a scale of half an inch to the foot accompanied by full-size details and profiles of mouldings. The drawings are geometric, that is in plan, elevation, and section, expressed in line and generally tinted. On plans and sections arbitrary colours are employed to indicate material, for instance, red denotes brick, purple-grey, stone, warm grey, cement, Prussian blue, iron or steel, and burnt sienna or Vandyke brown, wood.
These drawings convey little idea of the intended effect to the lay mind, and it is customary to suggest the eventual appearance by perspective views, but for practical reasons they constitute the most convenient form from which dimensions can be taken for working purposes.