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Chapter 14: A. Geometric Dimensioning and Tolerancing (GD&T) 139
lines on white paper. Although at the present time design engineers are using computers
and other modern production processes that use different colors, they still
call engineering drawings “blueprints” (Ware 1999). Figure 14.1 depicts an example
of a blueprint that was done using today’s technology. Engineering drawings
can be used in manufacturing, construction, operation, installation, maintenance,
and other applications. They are made in a way that should be understandable for
all users. Especially when these drawings are used between two or more countries
it is essential that a drawing prepared in one can be easily and correctly interpreted
by someone in the other country or countries. These countries don’t have
to speak the same language or use the same units of measure. The drawing can be
understood and translated based on the international standards provided by ISO/
TC 10 technical drawings standards (ISO 2002).
Sections of Technical Drawings
In technical drawings the following sections can be identified (Dirks 2000):
• Title block
• Notes
• Scale
• Revision block
• Tolerance
Part III.A.1
DW
Kitchen/breakfast
23'5" × 14'7"
Optional skylights
Dining room
15' × 13'
Pantry
Double
wall
oven
Ref
space
Shown with
gourmet kitchen
Desk
D
Dn
Closet
Sunken
family room
Cathedral ceiling
20'1" × 15'4"
Standard
fireplace
Dn
Powder
room
W
T
Dn
Laundry
Optional
fireplace
Living room
16'7" × 13'
Up
Two story
foyer
Closet
Study
11'6" × 10'3"
Two car garage
Chateau and Williamsburg
elevations include a
larger living room
and foyer
Federal elevation
includes a larger
foyer
Provincial and heritage
elevations include a larger
study and living room
Figure 14.1 Blueprint for a house floor plan.