The symbols below are used in architectural floor plans. Every office has their own standard, but most symbols should be similar to those shown on this page.

Building Section

Building Section

Top Line = Drawing Number

Bottom Line = Sheet Number

Wall Section

Wall Section

Top Line = Drawing Number

Bottom Line = Sheet Number

Detail Section

Detail Section

Top Line = Drawing Number

Bottom Line = Sheet Number

Exterior or Building Elevation

Exterior Elevation

Top Line = Drawing Number

Bottom Line = Sheet Number

Plan Detail Call Out

Detail Tag

Top Line = Drawing Number

Bottom Line = Sheet Number

Column Grid Call Out

Column Marks

Horizontal Lines = Letters

Vertical Lines = Numbers

Revision Cloud

Revision Cloud

Number = Revision on this sheet

Wall or Partition Tag

Wall Tag

Number = Partition type

Interior Elevations

Interior Elevation

Top Line = Drawing Number

Bottom Line = Sheet Number

Letters = Sub-drawing Number

SIM = Similar  &  OPH = Opposite Hand

North Arrow

North Arrow

Door Tag

Door Tag

The number is relative to the room that the door leads to.

Window or Glazing Tag

Window / Glass Tag

The number identifies the window type or the glass type

Room ID

Room Tag

Top Lines = Room Name

Inside Box = Room Number

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Article Updated: 2019-04-07
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