Working Drawings Handbook
Table VI Assembly drawings, component drawings and schedules listed as they would appear in the
drawing register
Scale Title CommentsDrawing number
A (21) 001– 020 1:5 External wall details Assembly details illustrating the entire range of different external wall
conditions to be found on the project, including door and window heads
and sills, and, in this instance, the footing, and ground floor junctions. It
would have been equally possible to code these latter conditions
A(16)—Foundations, or A (23)—Floors, but these were only two
variants on this particular project and common sense prompted their
inclusion in the A(21) series rather than a pointless further extension of
the elementalisation.
A (27) 001– 003 1:5 Eaves details Parapet and eaves details, however, are covered separately under an
A (27) 501 1:5 Parapet detail A(27)—Roof series, largely because the office possessed a standard
parapet assembly drawing which it wished to use on this project, and
which was already coded as A(27). It is numbered 501 because it is
desirable to keep the sequence of standard drawing numbers well clear of
numbers used for specific project purposes. The gaps in numbers which
thus appear may be criticised as leading to confusion and doubts on site
as to whether they are in possession of the complete set. It is felt,
however, that the advantages outweigh these possible objections, and
that the objections themselves largely disappear if the drawing register
procedures discussed elsewhere are adopted.
A (31) 001– 010 1:5 External wall opening The A(21) series will have covered a number of assemblies which also
assemblies—Sheet 1 convey information about secondary elements—e.g. a lot of the head
A (31) 011– 018 1:5 External wall opening and sill conditions for windows and external doors. The process of filling
assemblies—Sheet 2 in external openings schedules in the format recommended previously
will automatically throw up a number of conditions not taken care of in
this series and these, together with the jamb conditions, form the subject
of the A(31) assemblies.
A (32) 001– 006 1:5 Internal wall opening A similar series covering internal openings.
assemblies—Sheet 1 Two A1 sheets have been assumed, but the details might equally well
A (32) 007– 012 1:5 Internal wall opening have been carried out on a larger number of A4 or A3 sheets.
assemblies—Sheet 2 Note that this series conveys assembly information only about the
openings themselves—head, jambs and sills where appropriate.
Information about what goes in the openings—e.g. internal doorsets—is
given elsewhere in a series of C(32) component drawings.
Here again, the necessity for a particular detail will be made apparent by
the openings schedule.
A (35) 001– 004 1:5 Suspended ceiling Manufacturers’drawings will often be sufficient for describing the fixing
assemblies of suspended ceilings. In the present case the drawing covered the timber
framework for bulkheads at changes in the ceiling level.
A (37) 001– 003 1:5 Rooflight assemblies With the limited elementalisation applied to this set, it may be argued
that this drawing could have been grouped under (27)—Roofs, a
category which already exists for other purposes.