Essential Rainwater Harvesting by Rob Avis

Author:Rob Avis
Language: eng
Format: epub
Publisher: New Society Publishers
Published: 2018-10-24T16:00:00+00:00

Size and Scale

Your site plan should be drawn to scale. That means that the proportional ratios on your paper are representative of the real-life proportions. If you are doing your drawings by hand (as we often do), an architect’s scale ruler is an indispensable tool. It allows you to easily convert your real-life dimensions onto a piece of paper using common paired scales (1:100, 1:200, 1:300, and so on). If you are using an architect’s scale with imperial units, these are typically marked with a ratio of x”= y’, where x is the measurement on the paper drawing in inches and y is the number of feet in real life. See Figure 2.2 for a picture of an architect’s scale ruler.

When choosing a scale, pay attention to not fill the whole sheet of paper with the drawing. We find that ledger-sized graph paper (279 × 432 mm [11 × 17 in]) is usually the ideal size for both clearly communicating the system components at an appropriate scale and leaving enough room for notes and comments in the margins.

When the site plan is drawn to scale, horizontal distances can be measured directly off the drawing using a scale ruler, saving a ton of time when planning and designing your system. To see an example of this, skip ahead briefly to Example 5.1.

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