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8th Edition, 2018

Complete Document

Antennas, Towers, and Antenna-Supporting Structures

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Product Details:

  • Revision: 8th Edition, 2018
  • Published Date: January 2018
  • Status: Active, Most Current
  • Document Language: English
  • Published By: CSA Group (CSA)
  • Page Count: 241
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:


This Standard applies to structural antennas, towers, antenna-supporting structures, and roof- and wall-mounted structures, including their components, such as guys and foundations. It covers the structural design, fabrication, and erection of new structures and the modification of existing structures.


This Standard is not intended to apply to

a) attachment antennas and arrays or assemblies of such antennas; or

b) towers that support attachment antennas, extending less than 15 m above grade, including the height of any structure on which they are mounted.

Unusual designs and antennas

This Standard covers the requirements for most structural antennas, antenna towers, and antenna-supporting structures, but it is recognized that structures that are unusual with regard to their height or shape, or with regard to the shape and size of individual members, or that are located on sites having unusual topographical, geological, or climatic conditions might not be adequately covered. In such cases, appropriate engineering principles providing a level of reliability at least equivalent to that provided by this Standard should be applied.

Dynamic effects of wind

Other than the requirements of Annex N, this Standard does not contain mandatory requirements that take into account the dynamic effects of wind.

Other design approaches

A rational design based on theory, analysis, and engineering practice, acceptable to the owner and regulatory authority, may be used in lieu of the design procedures or materials described in this Standard. In such cases, the design should be prepared by an engineer qualified in the specific method and knowledgeable about the materials to be used, and should provide a level of safety and performance that is not less than that implicit in this Standard.

Local, provincial, and federal regulations

Responsibility for observing all applicable local, provincial, and federal regulations is not relieved by compliance with this Standard.


In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.