34 Chapter 2
Scale.
The graphic representation of the project is drawn to some proportion of the actual size of the project;
usually 1/8 inch is equal to a foot.
Although the original drawing may be scaled accurately, the print will be a copy of that original and
is not likely to be the same size as the original drawing. The copy may have been reduced slightly. Like-
wise, the paper size is often affected by temperature and humidity and may therefore stretch or shrink.
Due to these and other factors, avoid relying on measurements taken by laying a rule on the drawing.
Zoning.
For large projects, a drawing may sometimes be divided into a grid using letters and numbers. When
zoning is used, it is typically located inside the drawing frame. Zoning allows easy reference to various
parts of the drawing by referencing a coordinate such as B4.
Figure 2.12C Sketch of computer desk details, Havana Internet Cafe, Abu Dhabi.