Editing Unit of length (section)

===Australian building trades===
The Australian building trades adopted the [[metric system]] in 1966 and the units used for measurement of length are [[meters]] (m) and [[millimeters]] (mm). [[Centimeters]] (cm) are avoided as they cause confusion when reading [[plans]]. For example, the length two and a half meters is usually recorded as 2500&nbsp;mm or 2.5&nbsp;m; it would be considered non-standard to record this length as 250&nbsp;cm.<ref>{{Cite book|last=Wilks, Kevin Joseph.|url=https://www.worldcat.org/oclc/27702954|title=Metrication in Australia : a review of the effectiveness of policies and procedures in Australia's conversion to the metric system|date=1992|publisher=Australian Govt. Pub. Service|others=Australia. Department of Industry, Technology, and Commerce.|isbn=0-644-24860-2|location=Canberra|pages=94|oclc=27702954}}</ref><ref>{{Cite web|url=http://themetricmaven.com/wp-content/uploads/2012/03/Metrication-in-Australia-built-2013-06-24.pdf|title=Metrication in Australia}}</ref>