Working Drawings Handbook
scale for the benefit of the assembler. Figure 3.11, taken
from the UK Department of the Environment’s PSA
Library of Standard Details, is an assembly drawing.
Figure 3.12, part of Foster Associates’ highly
sophisticated detailing for the Willis, Faber and Dumas
head office building in Ipswich, is another. A world of
technology lies between them, but each drawing has in
common that it defines how a number of component
parts are to be put together.
With the assembly drawing we come to the very heart of
the information package. If the general arrangement
drawing is in many ways simply an ordered confirmation
of planning decisions made long before, and the
components drawing is frequently a documentation of
the architect’s judicious selection, the assembly drawing
poses that most searching of all our questions, ‘Howis it
going to be built?’ Before attempting to document his
answer in a manner which is going to be acceptable to3.9 Component drawing of different doorsets all cross-referenced back to standard sub-component drawing 3.10