Working Drawings Handbook
2.17 With a limited range of panel types and with each panel’s component drawing giving full information about it,
the elevation itself forms an adequate schedule
2.18 Elevation giving information about external plumbing
If a comparable series of vertical cuts were to be made
through the building, again taking a fresh one whenever
the appearance of the section changed, the result would
be a very large number of sections indeed. Such vertical
sections constitute a vital aspect of the information to be
conveyed, yet their number must be limited to
manageable proportions.Fortunately, a large number of the possible sections
tell us very little about the building. Figure 2.19which