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Text Description of Figure 1:
Typical steel access ladder
General arrangement - cage not required

  • Issued: July 2014
  • Content last reviewed: July 2014

Disclaimer: This resource has been prepared to help the workplace parties understand some of their obligations under the Occupational Health and Safety Act (OHSA) and regulations. It is not legal advice. It is not intended to replace the OHSA or the regulations. For further information please see full disclaimer.

Figure one shows the general arrangement of a typical steel ladder attached to the side of a building that does not require a safety cage. The figure shows a side view of the ladder attached to the building and a front view of the ladder only. The top of the building and ground level are shown in both views.

The height from the ground level of the roof or floor to the bottom of the first rung shall not be greater than 300 millimetres. The spacing between rungs shall not be greater than 300 millimetres when measured from the centre of one rung to the centre of the next. The minimum rung diameter shall be 20 millimetres. The minimum clearance between the side rails shall be 400 millimetres. The distance from the ground level of the roof or floor to the top of the highest rung shall not exceed 5 metres. The side rails shall extend 900 millimetres above the landing. The spacing between the side rails above the landing shall be no less than 600 millimetres and shall not exceed 750 millimetres. The minimum clearance between the side rails and the wall of the building shall be one hundred and fifty millimetres. The side rails shall have dimensions of ten millimetres by sixty five millimetres. Attachment and anchor bolts should have a minimum diameter of twelve millimetres. Maximum spacing of attachment points should be three metres.

Disclaimer: This web resource has been prepared to assist the workplace parties in understanding some of their obligations under the Occupational Health and Safety Act (OHSA) and the regulations. It is not intended to replace the OHSA or the regulations and reference should always be made to the official version of the legislation.

It is the responsibility of the workplace parties to ensure compliance with the legislation. This web resource does not constitute legal advice. If you require assistance with respect to the interpretation of the legislation and its potential application in specific circumstances, please contact your legal counsel.

While this web resource will also be available to Ministry of Labour inspectors, they will apply and enforce the OHSA and its regulations based on the facts as they may find them in the workplace. This web resource does not affect their enforcement discretion in any way.