A cord of wood Cord (unit) From Wikipedia, the free encyclopedia The cord is a unit of measure of dry volume used to measure firewood and pulpwood in the United States and Canada. A cord is the amount of wood that, when "racked and well stowed" (arranged so pieces are aligned, parallel, touching and compact), occupies a volume of 128 cubic feet (3.62 m3).[1] This corresponds to a well-stacked woodpile 4 feet (122 cm) high, 8 feet (244 cm) long, and 4 feet (122 cm) deep; or any other arrangement of linear measurements that yields the same volume. The name cord probably comes from the use of a cord or string to measure it.[2] Contents ◾ 1 Definitions ◾ 2 Heating value ◾ 3 See also ◾ 4 References ◾ 5 External links Definitions In Canada, the cord is legally defined by Measurement Canada. The cord is one of three legal standards for the sale of firewood in Canada (stacked cubic metre, cubic foot, and cord). However the stacked cubic metre is now the preferred unit of measurement.[3] In the United States, the cord is defined by statute in most states. The U.S. National Institute of Standards and Technology Handbook 130, section 2.4.1.2,[4] defines a cord and provides uniform regulations for the sale of fireplace and stove wood. In the metric system, wood is usually measured in steres and cubic metres: 1 stere = 1 m3 ≈ 0.276 cords. Page 1 of 3 Cord (unit) - Wikipedia 12/31/2016 https://en.wikipedia.org/wiki/Cord_(unit) Maine appears unique among U.S. states by also defining a "loose thrown cord" or pile of cut firewood: "A cord of 12 or 16 inches (30 or 41 cm) in length shall mean the amount of wood, bark and air contained in a space of 180 cubic feet (5.1 m3); and a cord of wood 24 inches (61 cm) in length shall mean the amount of wood, bark and air contained in a space of 195 cubic feet (5.5 m3). [1981, c. 219 (amd).]"[5] Other non-official terms for firewood volume include standing cord, kitchen cord, running cord, face cord, fencing cord, country cord, long cord, and rick, all subject to local variation. These are usually taken to mean a well-stacked pile of wood in which the logs are shorter or longer than in a legal cord, to accommodate various burners. For example, a face cord commonly consists of wood that is 16 inches (41 cm) long.[6] The volume of a face cord therefore is typically 1/3 of the volume of a full cord even though it is 8 feet (244 cm) long and 4 feet (122 cm) high. A face cord is also called a rick in Midwestern United States.[7] The term is used in other English-speaking countries, such as New Zealand,[8] but may not have a legal definition. Heating value Main article: Heating value of firewood One seasoned (dry) cord of red oak (22.1 MMBtu per cord) (million British thermal units per cord) has the heating equivalent of 159 US gallons (132 imperial gallons; 602 litres) of fuel oil (138,700 Btu per Gal).[9][10] See also ◾ Board foot ◾ Canadian units ◾ Cord-foot ◾ Cubic ton ◾ Forest product ◾ Hoppus foot ◾ List of unusual units of measurement ◾ Measurement Canada ◾ Measurement Information Division of Industry Canada ◾ Petrograd Standard ◾ Stere ◾ Units of measurement References 1. British Columbia Ministry of Forests and Range. "Glossary of Forestry Terms in British Columbia" (pdf). Retrieved 2008-09-04. 2. Oxford English Dictionary 3. Measurement Canada (2014). "Buying Firewood? Don't Get Burned". 4. NIST, Weights and Measures Division (2006). "Uniform Laws and Regulations in the Areas of Legal Metrology and Engine Fuel Quality". NIST Handbook 130 - 2006 Edition. Retrieved 2008-09-04. 5. Maine Department of Agriculture (http://www.maine.gov/tools/whatsnew/index.php? topic=Agriculture+News&id=4554&v=Article) Page 2 of 3 Cord (unit) - Wikipedia 12/31/2016 https://en.wikipedia.org/wiki/Cord_(unit) 6. Woodheat.org (2011). "What is a Cord? And How to Avoid Paying Too Much for One". 7. http://www.jwiwood.com/faq/rick.html 8. Consumer.org.nz What is a cord (http://www.consumer.org.nz/reports/firewood/standard-measurements) 9. "Firewood BTU Comparison Charts". 10. "Fuel Oil and Combustion Values". External links ◾ Kern County Weights and Measures "About Firewood" (http://www.co.kern.ca.us/weights/firewood.html) ◾ Nova Scotia Natural Resources Information Circular DNR - 1A: "Guide to buying and measuring stacked firewood" (http://www.gov.ns.ca/natr/publications/energy/buyfirewood.pdf) ◾ Wood Heat Organisation Inc. (http://www.woodheat.org/) Retrieved from "https://en.wikipedia.org/w/index.php?title=Cord_(unit)&oldid=757107519" Categories: Customary units of measurement in the United States Units of volume Logging ◾ This page was last modified on 28 December 2016, at 21:07. ◾ Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. Page 3 of 3 Cord (unit) - Wikipedia 12/31/2016 https://en.wikipedia.org/wiki/Cord_(unit)