National CAD
Standard/Uniform Drawing System
I. The National Institute of Building Sciences
developed
Organizes
electronic building design data that is produced in a large number of different
and various formats
Streamlines communication and the exchange
of data
Makes the compilation/comprehension of electronic
building data easier
Relies on the voluntary adoption of the
Standard
Currently consists of 4 different parts
Introduction and Amendments:
published by NIBS
CAD Layer Guidelines -
Uniform Drawing System: 8 modules. Published by CSI
Plotting Guidelines of the
Developed by the USDOD CADD/
Drawing Organization and standards vary
from office to office.
II. Eight Modules
A. Drawing Set Organization
B. Sheet Organization
C. Schedules
D. Layering
E. Drafting Conventions
F. Attributes
G. CAD Standards
H. Color
III. Drawing Set Organization
A. Set Content and Order
Drawings sets are
divided into subsets
a. General - Title sheets, index
sheets (if required)
b. Civil -
site work, excavation, site improvements
c. Landscape
d. Structural
e. Architectural
f. Interiors
g. Equipment
h. Fire Protection
i.
Plumbing
j. Mechanical
k. Electrical
l. Telecommunications
m. Resource
IV. Sheet Identification
Five character/digit system
A. Discipline Designators
a. One or two characters
b. Discipline
modifiers only used on large drawing sets - complex projects.
B. Sheet Type
Designators - middle character
C. Sheet sequence
numbers - 01 through 99
V. Much more to come in UDS
A. Architectural Drawings
Title sheet -
Project title, Owner, consultants names, building code
information, index of drawings
Site plans - plans may be created for site plans, site grading, landscaping
Floor plans - shows the horizontal
relationships between rooms
Often used as a basis for
identifying the location of other drawings
Exterior
elevations - shows vertical views of the exterior of the building from all
directions. Special views may be created for hidden areas. Indicates
exterior finishes, window, door, and eave heights, etc.
Roof plans -
shows a horizontal view of the roof. Usually drawn at the same scale as the
floor plan
Reflected
ceiling plans - show a reflected plan view of the ceiling as though looking
through a mirror lying on the floor
Sections
- a vertical slice through the building. Shows relationships between portions of the building
Schedules -
usually a matrix of information about one project component such as doors, room
finishes, windows, etc.