![]() This means that a line 1/4 “ long on the drawing represents an object that is one foot long. The most common architect’s scale used is 1/4 inch to the foot, written on drawings as: The architect’s scales use ratios of inches to a foot. For drawings smaller than the object, the ratio is that of a smaller distance to a larger one. The scale is the ratio of the size of the drawing to the object. In the latter case, this will be indicated by the “not to scale” abbreviation (NTS). ![]() The scale of the drawing is always written on the drawing, unless the drawing is not drawn to scale. The kinds of rulers we will be discussing for making scaled drawings are the architect’s scale and the metric scale, both shown in Figure 1.Īrchitect’s scale ruler Metric scale ruler Reduction scales make the drawing smaller than the object. For the purposes of representation, we will only be concerned with reduction scales. The flexibility to draw proportionally in different sizes is provided by scales. It is large enough to provide the desired detail but small enough to be handy. The convenience comes from the size of the drawing. The accuracy is achieved because the drawing is proportional to the real thing. Scale drawings are accurate and convenient visual representations made and used by engineers, architects, and people in the construction trades. Use scale rulers to determine actual dimensions from drawings.By the end of this chapter, you should be able to: ![]()
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