12/9/2023 0 Comments Architect scale on drawingWhere this is anticipated by the drawing author, the drawing should contain a scale bar which can be used as a measuring guide regardless of the actual drawing size or scale. This often results in drawings at complex scales that are not represented on a standard scale ruler. This is generally done for convenience as most offices have photocopiers capable of printing A3 sheets of paper, however not many have ready access to large scale plotters or printers required to produce larger drawings. Far quicker and easier than attempting to calculate the result.Īrchitectural drawings are often printed on different size sheets to those intended as the export size. 01m) on a plan produced at 1:50 scale using the same scale on the ruler will immediately show the length to be equivalent to 50cm or 0.5m. To use a scale ruler, it is simply a matter of confirming the drawing scale as identified in the drawing title block, finding the matching scale on the ruler, and then reading the measured length from the architectural drawing using that scale. To simplify the determination of a measurement from an architectural drawing produced to a scale, rather than having to arithmetically calculate the result using the defined conversion factor, scale rulers are readily available that provide the result immediately. In some case more complex scales may be used based on fractions or multiples of these numbers, ie 1:2.5, 1:125 or 1:75 Or described another way, 1cm (or any other unit measure) of length on the scale plan equates to 100cm at full size.Īrchitectural drawings can be produced at any scale, however for ease of use and interpretation, in countries using the metric system, most drawings use reduction factors based on various decimal versions of the metric divisible numbers 1, 2 or 5, eg 1:100, 1:20, 1:5. Thus, a floor plan produced to a scale of 1:100 is one hundred times smaller than the actual built plan. This is achieved by using relative scales.Ī lifesize image is represented by a scale of 1:1, however as it is not practical to draw most building elements at this full size scale, reduction factors are used to shrink the elements to a size that can readily be produced on drawing sheets. One of the key functions of a set of architectural drawings is the ability to depict a large structure as a series of much smaller 2D graphic illustrations. This second and final instalment explains measuring techniques and how to interpret drafting annotations, symbols and graphics used in architectural drawings. In Part A of this guide ( read here), drawing conventions governing sheet sizes and defined views were explained.
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