WORKING DRAWINGS HANDBOOK, Fourth Edition

Drawing the set

appropriate scale on a number of marginally
overlapping sheets, with, if necessary, a key sheet
drawn more simply at a smaller scale to show the whole
extent of the site (4.6).

Where an area is sub-divided in this fashion a small key
plan should always form part of the title block to indicate
the relationship of that particular drawing to the overall
plan (4.7).

Apart from this upper limitation it is clearly sensible to
restrict as far as possible the number of different sized
drawings issued on any one project. An early appraisal

of the size of the job and of the appropriate scale for the

general arrangement plans will probably establish the

format for the complete set of such drawings; normally

it is not difficult to contrive that the assemblies and

the ranges of component drawings should also be

drawn on sheets of that size. The majority of the

drawings in the average set therefore will appear in

either A1 or A2 format, depending upon the size of the

project.

The nature of sub-component drawings and schedules

however, tends to make a smaller format more suitable

for them, and there will always be, in addition, a number

4.2 Parts of three drawings using the Range 1 line thicknesses