Allan block has all the products colors ideas and resources you need to design and build retaining walls for homeowners contractors designers and engineers.
Retaining wall specifications new zealand.
For retaining walls 1 m or higher the new zealand building code may require a safety barrier at the top.
The type of soil.
B1 2 which states buildings building elements and siteworks.
Brace and concrete posts.
12 manners street po box 2199 wellington 6140 new zealand go to google map opens in new window wellington city council head office.
Because they are designed and manufactured here in new zealand you can be assured of short lead times.
Retaining walls that are over 1 5 m high and those supporting a surcharge require a building consent see figure 1.
Gabionz basket new zealand s choice for all landscaping and geotechnical projects.
In domestic situations this is likely to be required where the wall is beside an access path to the house.
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.
Regardless of whether a building consent is required retaining walls must comply with the requirements of the new zealand building code clause b1 structure.
The new zealand building code and so should be securely and safely constructed.
A great looking durable and easy to install nz made product the rocklok system is bowers retaining s latest retaining wall innovation.
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.
Gabionz baskets are made of high quality welded wire mesh panels are hot dip galvanised and available in a range of standard sizes or made to your specification.
This guide describes a 1 2 metre high cantilevered timber wall which consists of vertical posts embedded in the ground supporting horizontal rails.
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.
If your retaining wall is over 1m you will need to angle your posts.
113 the terrace po box 2199 wellington 6140 new zealand go to google map opens.
Materials 150 x 150 x 2400 mm long timber posts treated against decay to h5 standard.
Place a string line 50mm out from the front face of your post.
Placing it 50mm away from the rough sawn.
