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.
Block retaining wall design nz.
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.
When a building consent is required the wall must be specifically designed by a registered engineer.
This information is published by the ministry of business innovation and employment s chief executive.
The tasman retaining wall system incorporates purpose made corner and capping units to provide classical reconstructed sandstone retaining walls.
All firth retaining is made in nz.
The unique design of the tasman wall system allows increased.
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.
Firth keystone retaining wall system lightweight easy to handle and requires no special tools.
Timeless retaining walls stonebloc is a precast concrete retaining wall system of interlocking concrete blocks designed specifically for walls up to 2m high.
B1 2 which states buildings building elements and siteworks.
The blocks are easily dry stacked and their patented design locks into the block above to form an attractive structural retaining wall.
Stonebloc are easy to stack ensuring an incredibly fast build time and with 400mm thick solid concrete they form a super durable 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 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.
Firth retaining walls blocks are perfect for creating a landscaping feature.
Creates walls up to 1m high can go higher with specific design 3 units per lm or 11 units per m2 retaining capping units corner blocks and fibreglass pin connectors are also available 34kg block.
Retaining walls that are over 1 5 m high and those supporting a surcharge require a building consent see figure 1.