Any anchorbloc retaining wall exceeding 1 5 metres tall will require an independent design completed by a chartered professional engineer and will require a building consent from the local council.
Block retaining wall design nz.
Firth keystone retaining wall system lightweight easy to handle and requires no special tools.
Firth retaining walls blocks are perfect for creating a landscaping feature.
This information is published by the ministry of business innovation and employment s chief executive.
Stonebloc are easy to stack ensuring an incredibly fast build time and with 400mm thick solid concrete they form a super durable wall.
The ezi wall blocks are the lightest and easiest option for the diy er with their easy to use interlocking system and come in a choice of three colours.
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 unique design of the tasman wall system allows increased.
B1 2 which states buildings building elements and siteworks.
Retaining walls that are over 1 5 m high and those supporting a surcharge require a building consent see figure 1.
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.
Retaining wall system field installation guidelines 7 design guide and software the table below is a guide outlining the documentation required when constructing an anchorbloc wall.
Allan block has all the products colors ideas and resources you need to design and build retaining walls for homeowners contractors designers and engineers.
The tasman retaining wall system incorporates purpose made corner and capping units to provide classical reconstructed sandstone retaining walls.
Perfect for heavy duty garden retaining walls.
It is a general guide only and if used does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case.
Depending on the concrete blocks used a retaining wall made from concrete blocks could start from around 299 390.
When a building consent is required the wall must be specifically designed by a registered engineer.
The blocks are easily dry stacked and their patented design locks into the block above to form an attractive structural retaining wall.