ISO 2848

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The ISO 2848 Building Construction; Modular coordination; Principles and rules ( Building construction - Modular coordination - Principles and rules , International Organization for Standardization ) is an ISO standard used by the construction industry. The date of issue of the currently valid version is April 1984. The standard describes a dimension based on multiples of 300 mm and 600 mm. 300 and 600 are “preferred numbers,” numbers with a large number of factors. They and their multiples can be divided by 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30 etc. and are therefore ideally suited for mental arithmetic. The system is known as " modular coordination ".

The BS 6750 Module Regulations in Construction published in August 1986 and the ISO 21723 Building Construction and Civil Engineering - Modular Coordination - Module published in September 2019 have a focus similar to ISO 2848.

Basic module

Coordinate systems are used for orientation on floor plans and in the building . A coordinate is one of several numbers that indicate the position of a point in a plane. The numerical distances are the coordinate dimensions. These are usually a multiple of a module. The standard unit of ISO 2848 is a basic module with a length of 100 mm, which is represented by the letter M in the standards. If the standard is complied with, the main dimensions such as grid lines on drawings, distances between wall centers, shelf widths and kitchen elements are a multiple of the basic module. For longer lengths, 3, 6, 12, 15, 30 or 60 times the basic module is preferred. For smaller lengths, the submodules 1 ⁄ 4  M and 1 ⁄ 2  M are preferred.

Metric foot

When Metrics foot ( English Metric Foot ) If it is the nickname for a length with a preferred number, the length of 3 base modules (3 M) and 300 mm (11,811 in). The metric dimension of 300 mm is comparable to the foot of the Anglo-American system of measurement . A metric foot is 4.8 mm (0.189 in) shorter than the Anglo-American foot.

Although the metric foot is still used occasionally in the UK , particularly in the timber industry, it is now mostly metric units only.

The BBC studios in London, which opened in 1960, are measured in metric feet, unlike other film studios, which are measured in Anglo-American feet and inches.

Metric inches

A Metrics inch ( English Metric inches ) is a nickname for a preferred 1 / 4 -division an ISO 2848-base module of 100 mm in length or 1 / 12 of a metric foot having a length of 300 mm (11.811 in), so it has a Length of 25 mm. A metric inch is 0.4 mm (0.016 in) shorter than an Anglo-American inch , which is defined as 25.4 mm.

Metric inches were also used in the computer hardware of the COMECON countries, which used 1 ⁄ 10 of the metric inch length as the spacing of the pins instead of the western practice of 1 ⁄ 10 of the Anglo-American inch.

See also

Individual evidence

  1. ↑ José Luis Moro: Building construction - from principle to detail: Volume 3 · Implementation . Springer, 2019, ISBN 978-3-662-57401-0 , pp. 1031 .
  2. ↑ Abstract of APPLICATION OF MODULAR COORDINATION CONCEPT IN CONSTRUCTION INDUSTRY. Researchgate website, accessed September 25, 2019 .
  3. ↑ BS 6750 - 1986-08-29. Beuth Verlag, accessed on January 11, 2020 .
  4. ↑ List of all standards for modular construction. ISO website, accessed September 24, 2019 .
  5. ↑ ISO 21723 - 2019-09. Beuth Verlag, accessed on January 11, 2020 .
  6. ↑ Erwin Piechatzek, Eva Maria Kaufmann: Formulas and Tables Steel Construction: According to DIN 18800 . Springer, 2013, ISBN 978-3-322-93913-5 , pp. 21 .
  7. ^ Timber and Plywood Annual. Middlesex Publishing Company, 1969, p. 26
  8. ^ Encyclopedia of Distances. Springer, 2014, p. 597 ISBN 3662443422
  9. ^ Martin Kempton: An unofficial history of Television Center. Retrieved November 25, 2019 .
  10. ^ Timber and Plywood Annual. Middlesex Publishing Company, 1969, p. 26
  11. ^ Encyclopedia of Distances. Springer, 2014, p. 597, ISBN 3662443422