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Imperial Units – Refer to feet and inches.This will vary depending on which country you reside in. The first thing you must consider in choosing a scale ruler is which type of unit of measurements you are using. Learn more in the article titled “ An Introduction To Architectural Drawing Systems ” Choosing A Scale RulerĪ scale ruler is used to help understand the proportions of the drawing or model representation as a proportion of the real-life object. Types Of ScaleĬertain scales are used to produce different drawings. When a mass or a volume (length x width x height) is either drawn three-dimensionally or created as a physical model, the real-life volume is twenty times the length and twenty times the width and twenty times the height, so 8,000 times larger. When a square or an area (length x width) is drawn on a page, the real-life area is twenty times the length and twenty times the width, so 400 times larger. What is important to note is that when a single line or length is drawn on a page the real-life line is twenty times longer.
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