The spacing of vertical posts will depend on the size of post and rails used.
Retaining wall specifications nz.
Hiring professionals and tradespeople.
If you re not sure if your retaining wall will be load bearing we recommend you talk to an engineer.
Firth retaining walls blocks are perfect for creating a landscaping feature.
More than 1 5m high at any point.
It includes drainage behind the wall which is an essential part of any retaining wall construction.
The type of soil.
B1 2 which states buildings building elements and siteworks.
This information is published by the ministry of business innovation and employment s chief executive.
Firth keystone retaining wall system lightweight easy to handle and requires no special tools.
You need a building consent to build a retaining wall that will be.
This guide describes a 1 2 metre high cantilevered timber wall which consists of vertical posts embedded in the ground supporting horizontal rails.
The new zealand building code and so should be securely and safely constructed.
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.
A 150 mm square post can be placed at up to 910 mm centres the 10 mm allows a fitting.
Plan and measure the length and height of the wall.
Retaining walls are part and parcel of hillside living but fixing them post earthquakes has brought repair and insurance challenges.
Retaining walls that are over 1 5 m high and those supporting a surcharge require a building consent see figure 1.
Www nzwood co nz how to build low retaining walls 2 construction steps planning and measuring 1.
Other permissions you may need if the work will encroach on the.