This guide describes a 1 2 metre high cantilevered timber wall which consists of vertical posts embedded in the ground supporting horizontal rails.
Retaining wall specifications new zealand.
113 the terrace po box 2199 wellington 6140 new zealand go to google map opens.
Place a string line 50mm out from the front face of your post.
Brace and concrete posts.
When a building consent is required the wall must be specifically designed by a registered engineer.
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If your retaining wall is over 1m you will need to angle your posts.
Materials 150 x 150 x 2400 mm long timber posts treated against decay to h5 standard.
The new zealand building code and so should be securely and safely constructed.
The type of soil.
For retaining walls 1 m or higher the new zealand building code may require a safety barrier at the top.
Angle the hole to allow posts to lean back towards the area being retained at a ratio of 1 10 so the posts lean 100mm for every 1m of height.
Placing it 50mm away from the rough sawn.
12 manners street po box 2199 wellington 6140 new zealand go to google map opens in new window wellington city council head office.
Retaining walls that are over 1 5 m high and those supporting a surcharge require a building consent see figure 1.
Because they are designed and manufactured here in new zealand you can be assured of short lead times.
Regardless of whether a building consent is required retaining walls must comply with the requirements of the new zealand building code clause b1 structure.
Born as a complement to their existing range this sensational new product improves existing connection strengths providing extra safety and performing better when critical loads are present.
It includes drainage behind the wall which is an essential part of any retaining wall construction.
B1 2 which states buildings building elements and siteworks.
Allan block has all the products colors ideas and resources you need to design and build retaining walls for homeowners contractors designers and engineers.
Concrete masonry retaining walls can be designed in accordance with the following new zealand standards but it is prudent to have the design checked and inspected by a structural engineer.
In domestic situations this is likely to be required where the wall is beside an access path to the house.
