Retaining walls are a great way to add visual interest to a garden or to create separate levels on a sloping block in order to maximise the usable garden space.
When building retaining walls, there are some things that you need to watch out for to ensure that it is stable and functional. These include:
The most commonly used materials in retaining walls include.
To source the most suitable retaining wall materials for your space, see retaining wall material suppliers.
Retaining walls that are over one metre in height generally require a permit. A professional will be able to help you liaise with your local council and ensure that all their requirements are met, saving any problems in the long run. While it is possible to build small retaining walls yourself, it is recommended that you get a professional in to do the job, especially for drainage and safety issues. Any wall over 900mm high should always be built by a professional.
Professionals are also able to design a retaining wall that specifically suits your needs, taking into account things such as the structural requirements, soil conditions, the best materials to use and how cost effective the retaining wall will be. If you have a particularly complex retaining wall, you may need the services of an engineer as well as the professional that is building the wall for you, just to ensure that it is structurally sound.
When choosing your professional, you should ensure that they are appropriately qualified and experienced. They should be willing to give you a quote first so that you know how much the project is likely to cost all up. In some states your trade professional will need to be licensed to carry out this work. There is more information about the licensing requirements where you live on Licensedtrades.com.au.
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Small retaining walls could be built for under a thousand dollars and escalate to as much as ten thousand dollars - depending on scale and materials.There are numerous variables that will influence the cost of a retaining wall, including its size, height and the type of materials used. A low cost retaining wall can be built with untreated pine, but will have a limited lifespan and structural integrity. For superior longevity concrete, brick and stone will however cost more. Expect to pay more for retaining walls that require council approval and structural diagrams, all additional costs which you will be liable for. Other considerations that will affect overall cost include excavation and drainage. Expect to be quoted based on materials and labour, with materials calculated on a per square metre basis.
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