[CCMC evaluation requirements] CAN/CGSB-7.2-94, Am 1, Type: 1

From: National Research Council Canada

This document provides a summary of the minimum requirements imposed by the Canadian Construction Materials Centre (CCMC) for all evaluations based on the below criteria document. Additional requirements may be imposed by the CCMC when necessary for a particular evaluation, and are detailed in the individual evaluation.

Criteria document


These evaluations apply to adjustable steel columns used to support beams and carport roofs.

The standard covers the following column designs:

  • Type 1 – a telescopic double tube with an adjustable screw and a support pin; or
  • Type 2 – a single tube with an adjustable screw.


Material requirements

The evaluation holder must demonstrate that the product meets the following requirements (additional requirements may be imposed by the CCMC when necessary, and are detailed in the individual evaluation):

The standard requires the following:


  • Column tubes must be made from new steel with a minimum wall thickness of 2.54 mm and coated with rust-inhibiting paint on the outside surface.
  • Columns must be used with steel bearing plates, on the top and bottom, that are not less than 89 mm × 152 mm with a thickness of 6.4 ± 0.2 mm. The steel bearing plates must also be primed with a coat of rust-inhibiting paint.
  • The minimum outside diameter of a single tube column must be 63 mm. For a telescopic double tube column, the outside diameter of the inner tube must be 63 mm and the outer tube must be 70 mm. The outside diameter of the columns must not be greater than 89 mm to permit their use in 51 mm × 100 mm frame-constructed walls (plane-finished dimension).
  • Three columns must be selected at random for testing and the maximum allowable working load capacity must be at least 36 kN with a safety factor of 2.25.





In compliance with CAN/CGSB-7.2, each column must be labelled with the following information:


  • manufacturer’s name and address;
  • standard number: CAN/CGSB-7.2-94;
  • maximum extension (mm);
  • maximum allowable load (kN);
  • grade and yield strength of steel; and
  • the associated CCMC number.


© Canadian General Standards Board. This standard is withdrawn by CGSB due to limited use and support for their revision. Therefore, the information contained therein may no longer represent the most current, reliable, and/or available information on these subjects. CGSB hereby disclaims any and all claims, representation or warranty.

Installation requirements

The CCMC requires that evaluation holders provide instructions for the installation of the product(s) that:

Manufacturing requirements

The CCMC requires that evaluation holders, at a minimum, demonstrate that the associated production process:

Labelling requirements

The CCMC requires that evaluation holders ensure that product labels:

Published CCMC evaluations

The following products have been evaluated to these requirements by the CCMC:

CCMC number:Manufacturer:Product names:
13639-LPeak Innovations Inc. Peak Jack Post

Code references

National Building Code of Canada 2010

Code references Code provision the imposed load does not exceed 3 ...
Date modified: