Editing Unit of length (section)

==Surveying==
[[File:Determination of the rute and the feet in Frankfurt.png|thumb|right|Determination of the rod, using the length of the left foot of 16 randomly chosen people coming from church service]]

[[Surveying|Surveyors]] in the United States continue to use:
* [[chain (unit)|chain]] (22 yards, or {{val|20.1168|u=m}})
* [[rod (unit)|rod]] (also called pole or perch) (quarter of a chain, 5{{Frac|1|2}} yards, or {{val|5.0292|u=m}})

===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>

===Surveyor's trade===
American surveyors use a decimal-based system of measurement devised by [[Edmund Gunter]] in 1620. The base unit is [[Gunter's chain]] of {{convert|66|ft|m}} which is subdivided into 4 rods, each of 16.5&nbsp;ft or 100 links of 0.66&nbsp;feet. A link is abbreviated "lk",  and links "lks", in old deeds and land surveys done for the government.