The hoppuscubic foot (or ‘hoppus cube’ or ‘h cu ft’) was the standard volume measurement used for timber in the British Empire and countries in the British sphere of influence before the introduction of metric units. It is still used in the hardwood trade in some countries. This volume measurement was developed to estimate what volume of a round log would be usable timber after processing, in effect attempting to ‘square’ the log and allow for waste. The hoppus ton (HT) was also a traditionally used unit of volume in British forestry. One hoppus ton is equal to 50 hoppus feet or 1.8027 cubic meters. Some shipments of tropical hardwoods, especially shipments of teak from Myanmar (Burma), are still stated in hoppus tons.[1]
The English surveyor Edward Hoppus introduced the unit in his 1736 manual of practical calculations. [2][3] The tables include reference to stone as well as timber, as stone can similarly suffer wastage during processing into regular pieces.
Calculation of timber volume in round logsedit
The following calculation can be used to estimate the usable timber in round logs using a "girth tape" that is calibrated in "quarter-girth inches" (e.g. that shows "12" when measuring a 48-inch-circumference log):[4]
^Hoppus, Edward (14 November 2017). "Hoppus's Tables for Measuring, Or, Practical Measuring Made Easy: By a New Set of Tables ..." Longman and Company – via Google Books.
hoppus, musician, mark, hoppus, cubic, foot, hoppus, cube, standard, volume, measurement, used, timber, british, empire, countries, british, sphere, influence, before, introduction, metric, units, still, used, hardwood, trade, some, countries, this, volume, me. For the musician see Mark Hoppus The hoppus cubic foot or hoppus cube or h cu ft was the standard volume measurement used for timber in the British Empire and countries in the British sphere of influence before the introduction of metric units It is still used in the hardwood trade in some countries This volume measurement was developed to estimate what volume of a round log would be usable timber after processing in effect attempting to square the log and allow for waste The hoppus ton HT was also a traditionally used unit of volume in British forestry One hoppus ton is equal to 50 hoppus feet or 1 8027 cubic meters Some shipments of tropical hardwoods especially shipments of teak from Myanmar Burma are still stated in hoppus tons 1 Contents 1 History 2 Calculation of timber volume in round logs 2 1 Equivalents 3 See also 4 ReferencesHistory editThe English surveyor Edward Hoppus introduced the unit in his 1736 manual of practical calculations 2 3 The tables include reference to stone as well as timber as stone can similarly suffer wastage during processing into regular pieces Calculation of timber volume in round logs editThe following calculation can be used to estimate the usable timber in round logs using a girth tape that is calibrated in quarter girth inches e g that shows 12 when measuring a 48 inch circumference log 4 Hoppus Volume h ft Quarter Girth in 2 Length ft 144 circumference ft 4 2 Length ft Equivalents edit 1 h ft 1 273 ft3 27 74 h ft 1 m3 1 h ft 0 03605 m3See also editBoard foot Cord Cubic ton List of unusual units of measurement Units of measurementReferences edit Myanmar Inter Safe Co Ltd Archived from the original on April 21 2010 Rowlett Russ July 11 2000 Units H University of North Carolina at Chapel Hill Archived from the original on August 2 2018 Hoppus Edward 14 November 2017 Hoppus s Tables for Measuring Or Practical Measuring Made Easy By a New Set of Tables Longman and Company via Google Books Genesis Timber Specs www genesisny net Retrieved from https en wikipedia org w index php title Hoppus amp oldid 1218885988, wikipedia, wiki, book, books, library,
