Structural glued-laminated timber
This is the fifth edition of CSA O122, Structural glued-laminated timber . It supersedes the previous editions published in 2016, 2006, 1989, and 1980. This Standard contains stress grades for Douglas Fir-Larch, Hem-Fir, Spruce-Lodgepole Pine-Jack Pine, and Hem-Fir/Douglas Fir-Larch structural glued-laminated timber. This Standard is intended to be used in conjunction with CSA O177, Qualification code for manufacturers of structural glued-laminated timber. The following are the major changes to this edition
This Standard was prepared by the Subcommittee on Glued-Laminated Timber, under the jurisdiction of the Technical Committee on Solid and Engineered Wood Products and the Strategic Steering Committee on Construction and Civil Infrastructure, and has been formally approved by the Technical Committee. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group
This Standard provides minimum requirements for the manufacture of glulam of those species specified in CSA O86. It also provides minimum requirements for the block-gluing and re-gluing of glulam components into larger finished glulam.
Storage, handling, and installation of products subsequent to manufacture are not covered by this Standard.
The design criteria for glulam manufactured in accordance with this Standard are covered in CSA O86. Requirements for the development of specified strengths and modulus of elasticity for glulam are provided in Annex B.
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.
The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only. Note: For conversion into yard/pound (imperial) equivalents, see Annex A.
| SDO | CSA: Canadian Standards Association |
| Document Number | |
| Publication Date | Jan. 1, 2025 |
| Language | en - English |
| Page Count | 77 |
| Revision Level | |
| Supercedes | |
| Committee |