British Standards Relevant to Agriculture

British Standard Summaries

BS1722:1 1999
Fences
Part 1: Specification for Chain Link Fences


The text herein is not a a full reproduction of the British Standard. It is summary based upon interpretation of the original text and not intended as a replacement for the full text. It should be used for general guidance only.

BS1722 is sub-divided into a number of individual standards concerned with fencing made from a wide range of construction materials - wire mesh, wood and steel. These can be broadly broken down as follows:

  • Parts 1 - 3 and Parts 10 & 13 - 14: Chain link or wire mesh fences
  • Part 4: Cleft chestnut pale fences
  • Parts 5 - 7 and Part 11: Board / wooden fences
  • Parts 8 - 9: Mild steel fences
  • Part 12: Steel palisade fences
  • Part 16: Organic powder coating used for plastic finishing on fence components and mesh.

BS1722:1 is concerned with providing a detailed specification for chain link fences (up to 2.5m in height), gates and posts. It specifies requirements for fencing materials, their combination and erection.

General

  • Ground and local conditions may determine a variation in post depth from that specifically stated in the full Standard.
  • The full Standard allocates a reference code to each fence type, dimension and design.
  • The type of gate specified herein is steel framed with chain link infill.
  • All components should be free of sharp edges and burrs.

Materials and construction

  • Dimensions for fences, gates, posts and struts are given in The full Standard in tabular form.
  • The full Standard also provides detailed diagrams of how a chain link fence should be constructed.
  • Wire should conform to BS4102 or BS EN 10223.
  • Chain link mesh should be zinc or zinc alloy coated wire or plastic coated wire conforming to the appropriate Standard.
  • Concrete posts and struts should be steel reinforced concrete. Detailed specifications are given in the full Standard.
  • Gates should be the same height as the fence and of welded construction.
  • Gate infills should be either chain link mesh of the same mesh size and gauge as the fence or a suitable alternative.
  • Hinges, plates and pins should be steel.
  • Timber posts and struts should conform to BS1722-7:1999 and square sawn.

Erection

  • The top of the fence should approximately follow the level of the ground along its length.
  • Concrete for the bedding of posts and struts should be at least one part cement to 10 parts graded aggregate of 40 mm nominal maximum size.
  • Straining posts are required at all ends and corners of fences.
  • Struts shall be fitted to all straining posts and gate posts.
  • Intermediate posts are required at intervals of not more than 3m.
  • hanging and latch fitting should be fitted to steel gate posts with two 12mm bolts.

A British Standard nor this summary does not, necessarily, include all the necessary information for correct implementation of the Standard to any specific application. This is purely the responsibility of the user. Standards are updated by either amendment or revision. Users should ensure that they are using the latest version.


The full text of this Standard can be obtained from the British Standard Institution

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