Retaining Walls
We offer modern wall with the best quality that meet all your needs.
Panel & Post Retaining
Suppliers of the Wonder Wall panel and post retaining wall system
Structurally sound panel and post retaining walls are available from Retaining Wall, the retaining wall specialists in Perth.
What are Retaining Wall?
The Retaining Wall system comprises factory precast steel reinforced concrete posts and panels. These components are assembled on-site using a cantilevered configuration and are able to retain up to 1.5 meters.
How are they erected?
Building a retaining wall is relatively straightforward, with a few ground rules surrounding the posts and panels.
Retaining wall posts are normally 130mm square and spaced at 1150mm centres. In most cases the posts are twice as long as the wall is high – e.g. a 600mm high wall would use a 1200mm long post. Half the post is placed in a hole excavated in the soil and then backfilled with an appropriate strength material – i.e. 1 part cement to 4 parts damp sand, or similar.
In the case of walls higher than 1200mm additional reinforced concrete backing panels are used to distribute the load at the base of the panel.
Standard panels 300mm deep, with half panels 150mm in depth, are used in conjunction with each other to allow a retaining wall height from 300mm to 1500mm in increments of 150mm.
Retaining Wall can also be constructed alongside a driveway, and specifications for a light vehicle surcharge wall are also available. Detailed engineering specifications for the erection of a wall in sand or clay are available.
Approximate Dimensions for Posts and Panels
Posts: 0.600 to 2.900 x 0.130 x 0.130 metres
Panels: 1.050 x 0.300m; 1.050 x 0.150m; and 1.050 x 0.450m
Footings: 0.350 to 0.450 metres across
Colours and Finishes
Retaining Wall produces traditional grey and cream panels with a smooth finish and a good looking Slate finish in Grey. Our Cream panels are also available in limestone finish with newly developed slate and block finishes. All of these versatile colours and finishes are available for you to view at our showroom.

The Wonder Wall Advantage
There are many advantages to choosing Wonder Walls over other retaining systems:
Minimal use of space
- Retaining Wall can be retained right to the edge of the block, which means a fence can be erected immediately behind the wall. They make for excellent garden and landscaping retaining walls.
Low Cost
- The cost for the supply and erection of a wall is generally cheaper than most other retaining wall systems.
Strength & Durability
- Retaining Wall offers the perfect retaining wall solution. Their concrete composition and galvanised steel reinforced panels make them extremely strong. The steel is completely encased in the panel and there are no exposed ends; they can’t rot or corrode, and they provide a quality finish that is maintenance-free and lasts a lifetime.
Easy to Install
- Retaining Wall is designed for the Do-It-Yourself enthusiast. This DIY retaining wall system does not require skilled labour and is quick and easy to install. The panels are relatively light and can be handled easily by one person.
Independently Tested
- The concrete used in Wonder Walls panels and posts is regularly tested by an independent testing laboratory to ensure consistency of the design strength.
For an obligation-free site inspection, measure, and quotation anywhere in the greater Perth metropolitan area, contact us on 0431703770


Strength & Durability
- Stag Fencing offers the perfect retaining wall solution. Their concrete composition and galvanised steel reinforced panels make them extremely strong. The steel is completely encased in the panel and there are no exposed ends; they can’t rot or corrode, and they provide a quality finish that is maintenance-free and lasts a lifetime.
Easy to Install
- Stag Fencing is designed for the Do-It-Yourself enthusiast. This DIY retaining wall system does not require skilled labour and is quick and easy to install. The panels are relatively light and can be handled easily by one person.
Independently Tested
- The concrete used in Wonder Walls panels and posts is regularly tested by an independent testing laboratory to ensure consistency of the design strength.
For an obligation-free site inspection, measure, and quotation anywhere in the greater Perth metropolitan area, contact us on 0431703770
Explore Our Retaining Wall Products

Cream

Grey

Grey Slate

Cream Slate

Cream Limestone Finish

Cream Block
Frequently Asked Questions
What are the Australian Standards referred to above?
Retaining Wall precast concrete panel and post retaining walls are 100% compliant with all the current and relevant Australian Standards – and these include:
AS1170.0:2002 – Structural design actions Part 0: General principles;
AS1170.1:2002 – Structural design actions Part 1: Permanent, imposed and other actions;
AS1170.2:2011 – Structural design actions Part 2: Wind actions;
AS3600:2009 – Concrete Structures
AS4678:2002 – Earth retaining structures.
What recent changes were made to Retaining Wall to comply with new and revised Australian Standards?
Changes made include:
- The use of additional steel within the posts as well as the use of ligatures holding the reinforcing bars together
- longer posts for different wall heights with consequently longer post footings, and
- an adjustment in post hole diameters, especially for the longer posts.
No changes were required to what are already extremely strong panels.
Can I put a fence on top of the Retaining Wall?
No – but a fence can be placed directly behind a Retaining Wall, and the distance required between the rear of the wall and a fence will vary depending on the type of fence being used, typically 100mm.
This includes a Colorbond fence.
Can Retaining Wall be used as a fence?
The Retaining Wall system has been designed specifically as a retaining wall system. It is an engineered product capable of withstanding the various forces imposed on it by the earth that is being retained.
While it is true that some of our customers have in the past used Retaining Wall as a fence rather than a retaining wall, it is important to recognise that the system has not been designed to be a fence. For instance, the textured finish is on one side of the panel only – the rear of the panel is the side that should be holding back the earth.
How do I obtain a Retaining Wall Engineer Specification Drawing?
Please contact Structerre Consulting Engineers, Contact Details below:
Phone
- 0431703770
How soon can a job be done?
Under normal circumstances we are generally able to start a new job within 2 weeks.
How do I arrange a quote?
We are happy to provide a FREE site inspection, measure and quotation (no obligation) for anywhere in the Greater Perth Metropolitan area. Simply contact us on 0431703770.
Where can I see a sample of Retaining Wall?
What colours/patterns are available?
Retaining Wall come in 2 colours – Grey and Cream . They are also available in 4 patterns – plain, limestone, block and slate.
Where can I use Retaining Wall?
Retaining Wall are used to retain heights up to 1.5m. You can use them for:
- Retaining where space is limited
- Retaining between blocks having differing levels
- Terracing steep slopes
- Attractive garden edging and the creation of flowerbeds
- Replacing termite-infested sleepers
Can anyone install Retaining Wall?
Yes. You can install a Retaining Wall retaining wall yourself, or we can arrange installation for you.
How strong are Retaining Wall?
Retaining Wall are manufactured to the strictest Australian Standards. They are 100% compliant with all the current and relevant standards relating to earth retaining structures. This includes the strength required to hold up earth; fences (including colorbond) when gale force winds are applied to the fence; as well as light vehicle surcharges (ie driveways) and other imposed loadings.
What are Retaining Wall?
Retaining Wall are retaining walls manufactured from factory-precast steel reinforced concrete posts and panels. They are strong and durable and can retain up to 1.5 metres.
Why should I choose Retaining Wall over traditional retaining walls?
Retaining Wall take up minimal space. They are strong, durable and simple to install. And, most importantly, Retaining Wall are maintenance free and cost effective, as they are generally cheaper than other retaining systems.