In Auckland, the most expensive type of retaining wall is typically the cantilever retaining wall. Cantilever walls require careful engineering and construction due to the complex design and reinforcement required to withstand the lateral pressure of the soil. The higher cost of materials and labor, along with the specialized expertise needed for their installation, contribute to the higher price tag.
Cantilever walls involve the use of reinforced concrete, which can be more expensive than other materials such as timber or segmental blocks. Additionally, the design and construction of cantilever walls often require excavation, formwork, and reinforcing steel, which further adds to the overall cost.
Furthermore, the cost of the retaining wall can vary depending on the specific site conditions, such as the height and length of the wall, soil characteristics, access to the construction site, and any additional requirements such as drainage systems or backfill materials.
It’s important to note that the cost of a retaining wall is influenced by various factors, and it’s recommended to consult with a professional engineer or construction contractor who can assess the site conditions and provide accurate cost estimates based on your specific project requirements.