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Installation Tips

Installation Of Concrete Retaining Wall | Council Regulations & Building Approvals

Here are some tips for installation of a concrete retaining wall

  • Most engineers call for the posts to be the same length in the ground as are above.  1m high wall = 2m posts.
  • Post spacing is crucial for no fence add 30mm to the overall distance and add 40mm if you intend to put fence brackets on top of posts. If you use 2m sleepers spacing between posts will be 2040mm with a fence and 2030mm without one.
  • Our sleepers are made for a direct fit inside of the post flange no wedging is needed
  • A 2m sleeper weight is 74kg and a 2.4m sleepers weight is 90kg so take this into consideration before planning a wall so if space is tight lighter is usually better!!

 

Construction of Retaining Walls in different regional/city councils have different rules and regulations to follow when Building a Retaining Wall. In some cases, construction approvals don’t need to be done if the following applies to you:

  • The total height of the Retaining Wall and/or its fill is no more than one meter above its natural ground level.
  • The Retaining Wall is no closer than 1.5 meters to another retaining wall and/or a building.

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Technical Design Guide

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Design and siting relaxation approval is required from council where the retaining wall is greater than two (2) metres above natural ground level and is to be located either within 1.5 metres of a side or rear boundary or within six (6) metres of a road boundary.

For any other futher information on building approvals and council regualtions regarding construction of a retaining wall, please continue reading on the list of your applicable council below:

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Engineering Approval Certificate

Engineering Approval Certificate