Working drawing management
Component and sub-component drawings*
Drawing number
C (31) 001— 008 1:20 External openings component 1 The windows and external doors in this set are conveyed on separate
to 8 sheets, each sheet giving dimensioned elevation of what is required.
They are supplemented by an SC(31) series of details showing
SC (31) 301– 304 1:5 Sub-component construction constructional details of the components themselves (timber sections,
details—Sheet 1 throatings, fixing of glazing beads, etc.).
SC (31) 305– 308 1:5 Sub-component construction As with the assemblies, where a 500 series was used to keep
details—Sheet 2 standard drawings separate from the project numbering sequence,
here the 300 series is used for a similar purpose.
SC (31) 309– 312 1:5 Sub-component construction
details—Sheet 3
C (32) 001 1:20 Internal openings component 1 Components filling internal openings covered by a similar method. The
to to component is regarded as the doorset, rather than the door. This is in
C (32) 015 1:20 Internal openings component 15 line with modern joinery shop practice and avoids the difficulties of some
SC (32) 501– 504 1:5 Sub-component construction joinery drawing methods where the door and its frame are treated as
details—Sheet 1 separately detailed items, giving rise to problems of coordination and of
SC (32) 505– 508 1:5 Sub-component construction dimensional tolerances. In the present method these problems are placed
details—Sheet 2 where they rightly belong, with the manufacturer.
SC (32) 509– 512 1:5 Sub-component construction The component construction details are in a 500 series, being office
details—Sheet 3 standard drawings. This is an area that lends itself profitably to
SC (32) 513– 516 1:5 Sub-component construction standardisation. The overall size of component is specific to the project,
details—Sheet 4 but the frame sections are standard regardless of component size.
Schedules
Schedule number
S (31) 001 Schedule of external openings When the number of components in a category is small, and/or the
S (31) 101 Schedule of external ironmongery number of ways in which potentially they may vary is also small, then it
S (31) 001 Schedule of external openings may be left to the appropriate location drawing to identify them, and to
S (31) 101 Schedule of external ironmongery the appropriate component drawing to illustrate them. Once you start
S (31) 001 Schedule of manholes getting half-a-dozen types, however, and each type may vary as regards
its head and jamb assembly, ironmongery and architrave, then it
becomes a better bet to number the components on the plan and to refer
the searcher to a schedule in which can be tabulated all the variables
applying to a given component.
The three main schedules in this set are of this kind. Each gives a
numbered list of manholes and openings and uses this as the starting
point from which to refer to drawings covering all the variables affecting
the component.
The ironmongery schedules are rather different in purpose and in
format. They are essentially vocabularies of fittings, made up into sets.
The opening schedules call up the set of fittings to be fixed to the relevant
door or window.
- The examples given are sufficient to illustrate the principle. In practice, other component drawings might cover, for example: copings, pre-cast cladding panels
(21), stairs, cat-ladders (24), lintels (31) and (32), balustrades (34), roof lights (37), skirtings (42), litter bins and bollards (70).
Table VI (continued)
Scale Title Comments