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KitWren
BeginnerFree Construction documentation course about 14 min

Organising a drawing set

A well-organised set lets anyone find any drawing in seconds. Learn the standard order of drawings, discipline and series numbering, and how the register keeps track.

In this lesson you will

  • Order drawings from general to specific
  • Use discipline designators and series
  • Maintain a drawing register
  • Cross-reference drawings clearly

General to specific

Sets move from the whole to the parts: cover and index → general notes and legends → site → plans → elevations → sections → enlarged plans → details → schedules. A reader should never need a detail to understand where something is.

A tree of a drawing set: cover and index, then general sheets, architectural sheets (site, plans, elevations, sections, details), structural and services sheets, and schedules.Drawing setGeneral (G)Architectural (A)Structural (S)Services (M/E/P)cover, indexnotes, legendssite planfloor planselevationssectionsdetailsschedulesfootings, framingstructural detailslayoutsrisers
Figure: How a drawing set is organised. Original KitWren diagram.

Disciplines and series

Each discipline has a letter: G general, C civil, L landscape, A architectural, S structural, M mechanical, E electrical, P plumbing/hydraulic, F fire. Within a discipline, the first digit often indicates the series: 0 general, 1 plans, 2 elevations, 3 sections, 4 enlarged views, 5 details, 6 schedules. The US National CAD Standard's Uniform Drawing System is one widely used convention; follow your office or national standard.

A title block with fields for project, client, drawing title, sheet number, revision, scale, date and drawn/checked initials; beside it a sheet number broken into discipline A, series 1 and sheet 01.ProjectRiverside LibraryClientCity CouncilDrawingLevel 1 floor planScale1:100 @ A1Date2026-09-27Drawn / checkedAB / CDSheetA-101RevisionCA-1 01disciplineseriessheetA = architectural1 = plans
Figure: A title block and sheet numbering. Original KitWren diagram.

The drawing register

The register lists every drawing with number, title, scale, size and the revision issued on each date. It's issued with every transmittal so recipients know exactly what's current. Generate it from your CAD or BIM software where possible, so it can't drift.

Cross-referencing

Every section marker, elevation marker and detail callout carries the view number and the sheet it's on (e.g. 3 / A-301). Every view title shows its number, name and scale. Check references before every issue — a missing detail is one of the most common RFIs.

Common mistakes

  • Numbering sheets in the order they were drawn.

    Number by series and discipline so the set reads general to specific.

  • Renumbering sheets after issue.

    Keep numbers stable once issued; add new sheets within the series.

Exercise

Plan a set

  1. For a two-storey house, list every sheet you'd need with number and title.
  2. Order them general to specific.
  3. Draft the register table with columns for three future issues.

You should end up with: A logical, numbered sheet list and register.

Checklist

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Lesson quiz

1 / 4

What does the letter S usually denote in a sheet number?

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