Retaining Walls Supplies Adelaide

Retaining Wall Supplies Adelaide provides concrete sleeper retaining wall systems, galvanised steel posts, and fencing components for residential and commercial projects across South Australia.

We specialise in steel-reinforced concrete sleepers and engineered retaining wall systems designed for strength, durability, and long-term performance.

Our concrete sleeper range includes multiple thicknesses, lengths, colours, and surface finishes, allowing you to build straight boundary walls, stepped retaining walls, or higher load-bearing structures with the correct sleeper and steel combination for your site.

Trusted by homeowners, landscapers, and builders across Australia, with 5-star Google reviews and dedicated retaining wall support.

Fast Sleepers & Steel Quote

Trusted by builders, developers, and civil contractors across Australia.

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Concrete SleeperEngineer-certified 40–60MPa concrete sleepers with steel, made for Adelaide retaining walls.Shop Sleepers
Under Fence Plinth and Timber Fence Installation | Retaining Wall Supplies Melbourne
Under-Fence Plinths50mm reinforced concrete plinths to prevent erosion gaps under Adelaide fencing.Shop Plinths
Modern concrete sleeper retaining wall with black steel posts along a green lawn.
Steel PostsAS4100-rated UC & PFC steel posts for 75–100mm sleepers in Adelaide retaining walls.Shop Steel Posts

Concrete Sleepers for Retaining Walls in Adelaide

Steel-reinforced concrete sleepers available in multiple sizes, colours, and finishes for straight, stepped, and near-vertical retaining walls.

Concrete sleeper retaining walls are built for strength, durability, and long-term performance. Manufactured using high-strength concrete with steel reinforcement, they are well suited to retaining applications where timber alternatives may deteriorate, warp, or require ongoing maintenance.

We supply a wide range of concrete sleeper profiles, including smooth, timber-look, and textured finishes, with options suitable for both residential landscaping and commercial retaining wall projects.

Concrete sleeper retaining walls are commonly used for:

  • Boundary and fence-line retaining walls
  • Sloped sites requiring stepped garden walls
  • Structural retaining walls designed for long-term stability
  • Landscaping projects where durability and appearance matter

Browse our Adelaide concrete sleeper range below to compare sizes, finishes, and strength options.

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Retaining Wall Steel Posts and Brackets

Galvanised steel retaining wall posts sized to match sleeper thickness, wall height, and structural requirements.

Concrete sleeper retaining walls rely on correctly sized steel posts to achieve structural stability. We supply a full range of galvanised retaining wall steel posts, including 100UC and 150UC profiles, along with corner and joiner variants to suit straight, stepped, and angled wall layouts.

Steel post selection depends on sleeper thickness, wall height, and engineering design. Our team can assist with confirming the correct post sizing to ensure your retaining wall system is structurally sound and compliant.

All retaining wall steel supplied is suitable for engineered retaining wall systems when designed in accordance with relevant Australian Standards.

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Under-Fence Plinths and Fencing Integration​

50mm reinforced concrete plinths designed to close gaps beneath fencing on boundary retaining walls.

Under-fence concrete plinths are commonly used to prevent erosion, improve privacy, and create a clean finish beneath fencing installed above retaining walls. Our 50mm concrete plinths integrate seamlessly with galvanised steel posts and both Colorbond and timber fencing systems.

This solution is ideal for boundary walls where retaining and fencing need to function together as a single, durable system.

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Use our retaining wall calculator to estimate concrete sleeper and steel post quantities based on your wall height and length. The calculator is designed specifically for concrete sleeper retaining wall systems and provides indicative quantities only.

Final wall height, soil conditions, drainage, and engineering requirements should always be confirmed before construction.

430.00

47

Concrete Sleeper Requirements

This is how many concrete sleepers you will need for your wall.

10 pcs

48 pcs

480 pcs

Steel Posts Requirements

100 UC/PFC 75-80mm Sleeper
150 UC/PFC 100-120mm Sleeper

0 mm

0 pcs

Need help or want a fast estimate? Our team can review your project and confirm the correct sleeper and steel combination. Call us at 0485 856 986.

Why choose Retaining Wall Supplies in Adelaide?

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Outstanding Support

Get clear, practical advice on concrete sleepers and retaining wall steel, backed by real project experience. Our team helps with quantities, wall heights, sleeper selection, and steel compatibility for South Australian conditions.

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Obligation-Free Quote

Request a no-obligation estimate for your retaining wall project. We’ll help you confirm sleeper sizes, steel post requirements, and delivery options before you place an order.

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Pickup or Delivery

Choose pickup where available or arrange reliable delivery across Adelaide metro and surrounding South Australian regions. Delivery is recommended due to sleeper weight and handling requirements.

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Best Price Guarantee

We offer competitive pricing on concrete sleepers and retaining wall steel, backed by our best price guarantee. If you find a like-for-like product cheaper, we’ll do our best to match it.

Our Customer Reviews

Our 5 stars rating on Google reflect real retaining wall projects, from DIY backyard builds to larger commercial installations. Customers consistently value our product quality, technical advice, and reliable service.

Engineer-Certified Concrete Sleeper Systems

At Retaining Wall Supplies, all our concrete sleepers are steel reinforced and manufactured to comply with AS3600/2009. Our concrete sleeper systems can be engineered and certified for retaining walls up to 4.5 metres high, depending on site conditions and design requirements.

Concrete sleepers are supplied in 40MPa and 50MPa strengths, with 2 x N10 reinforcement bars (N12 on selected products), using ACRS-compliant steel.

Our retaining wall systems are engineer-certified and designed for South Australian conditions. Retaining Wall Supplies is Australian-owned and supplies Australian-made concrete sleepers.

engineer certified sleepers

DIY and Professional Retaining Wall Projects

Many concrete sleeper retaining walls are suitable for DIY installation, particularly for lower walls and landscaping applications. Higher retaining walls, boundary walls, or walls supporting loads may require engineering design and licensed retaining wall builders.

If you are unsure whether your project requires engineering or professional installation, our team can provide guidance before you order.

Need Help with Your Retaining Wall Project?

If you need advice on concrete sleepers, steel posts, wall height, or delivery options in Adelaide, our team is here to help.

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Steel posts for concrete sleeper retaining walls in New South Wales

About Us

Retaining Wall Supplies supplies concrete sleepers, galvanised steel posts, and retaining wall components for residential and commercial projects across Adelaide and South Australia.

We support DIYers, landscapers, and trade customers with practical advice, reliable supply, and materials designed for long-term retaining wall performance. Our range includes multiple sleeper lengths, thicknesses, colours, and finishes, sourced from trusted Australian manufacturers and supplied to meet structural and engineering requirements.

From small backyard retaining walls to larger commercial projects, our team focuses on getting the details right, from product selection and quantities through to delivery and pickup options across the Adelaide region.

Delivery and Pickup Across South Australia

We offer delivery of concrete sleepers and retaining wall steel across Adelaide and surrounding South Australian regions. Stock availability and delivery logistics are confirmed at the time of order based on product type, quantities, and transport requirements.

Pickup options may be available depending on product and location. Our team will confirm the most suitable delivery or collection option for your order.

Where available, concrete sleepers or galvanised steel posts can be collected from our

Adelaide warehouse at: 17 Lindsay Rd, Lonsdale SA 5160

For interstate delivery outside South Australia, availability and transport options can be discussed with our team at the time of enquiry.

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Frequently Asked Questions

Got any questions about your retaining wall project or order? We’ve got you covered.

We supply concrete sleepers, galvanised steel retaining wall posts, under-fence plinths, and timber sleepers for retaining wall construction across Adelaide and South Australia.

No. Retaining Wall Supplies specialises in concrete sleeper retaining wall systems and steel posts rather than interlocking block systems.

Yes. Steel-reinforced concrete sleepers are commonly used for higher retaining walls when designed with appropriate steel posts and engineering.

Many lower retaining walls are suitable for DIY installation. Higher or load-bearing walls may require engineering and professional installation depending on site conditions.

In Adelaide, our minimum order is set to cater to both small and large projects. You can order as few as 10 standard concrete sleepers or 8 heavy-duty sleepers, ensuring you receive optimal value for your retaining wall needs.

Absolutely! We offer comprehensive delivery services throughout Adelaide. Our network ensures that your concrete sleepers and other supplies reach you promptly and in perfect condition.

Yes, all our concrete sleepers supplied in Adelaide can be custom cut to suit your specific project requirements. We use precision tools to ensure clean and accurate cuts.

While we specialise in supplying concrete sleepers and steel posts, we can recommend experienced installers in Adelaide to assist with your retaining wall construction.

For retaining walls under 1 metre in height, you typically won’t need council approval. However, for higher walls, it’s best to check with your local council for specific regulations.

If you need to cancel your order before we have dispatched the products, we can process a refund, subject to certain conditions. Please contact us as soon as possible for assistance.

You can reach us via our website, email (info@retainingwallsupplies.com.au), or phone (0485 856 986). Our team is ready to assist with any queries you have regarding our products and services.

More questions about Concrete Sleepers...

A retaining wall concrete sleeper is a precast concrete block that is used to support and retain soil. Due to their durability and strength, they're ideal for retaining walls. They're also resistant to water, corrosion, and UV rays, which is why they're so popular for retaining walls.

We boast a diverse range of concrete sleepers, including different sizes, strengths (such as 40MPA, 50MPA, 60MPA), and colours, suitable for various landscaping projects.

Woodgrain Concrete Sleeper - This type of sleeper is cost-effective and made out of timber. They also have the same level of durability as concrete sleepers whilst providing an aesthetically pleasing design.

Smooth Face Concrete Sleepers - This is a stylish option that's often used in residential and commercial projects. These sleepers are particularly robust, having great resistance against harsh weather conditions, rot, and general deterioration.

Stacked Stone concrete sleepers - Also referred to as the rock face concrete sleeper, they have no shortage of demand. Regardless of their color, they have a pleasing textured appearance that results in a sleek finish. This sleeper type is also low-maintenance, long-lasting, and resistant to decay.

Retaining Wall Supplies is your one-stop shop for the best concrete sleepers & steel posts in Adelaide and the rest of Australia. We offer contemporary and classic designs for your retaining walls, all at competitive prices.

We are a reputable supplier, offering high-quality concrete sleepers with a focus on customer satisfaction and compliance with Australian standards.

Our warehosue is located at: 17 Lindsay Rd, Lonsdale SA 5160

We provide concrete sleepers in a wide range of colors. Charcoal and jasper colors offer a stylish and modern look, while natural and light gray concrete sleepers are more subtle.

Concrete sleepers are commonly used for exterior projects, such as:

  • Retaining wall construction
  • Steps or walkways
  • Feature Walls up to three meters high
  • Barrier walls for blocking wind and noise
  • Structural support for sandpits, decking, or raised garden beds
  • Edges for gardens, paths, and driveways

Concrete sleepers that are used to construct retaining walls generally last 15 to 20 years. These have one of the lengthy life spans of any retaining wall materials available on the market.

As long as you're properly maintaining your sleepers, they should last the full 20 years.

Due to concrete sleepers being made out of reinforced concrete, they're heavier, stronger, and require less maintenance than wooden sleepers. They also won't warp or rot like wood and are even more environmentally friendly. As wooden sleepers are submerged in creosote which contains toxic chemicals, opting for concrete sleepers is a safer and more sustainable choice.

Concrete sleepers offer durability, low maintenance, and resistance to pests and weather, making them an excellent choice for long-lasting retaining walls.

At Retaining Wall Supplies (RWS), we provide competitively priced concrete sleepers, with costs varying depending on size, type, and quantity. Contact us for detailed pricing information.

They are commonly used for retaining walls, garden beds, and landscaping features, offering both aesthetic appeal and functional benefits.

Need Expert Advice on Your Retaining Wall Project?

We simplify the retaining wall construction process – contact us via phone, email, live chat or the enquiry form for any questions about our retaining wall supplies, concrete sleepers, steel posts and fence plinths or anything else we can assist with!

Give us a call to talk us through your project to find the best deals and quote. Alternatively, just send us a text.

Contact us via email/form with your requirements or leave us your phone number and we’ll call you back.

Want a quick quote? Fill in our online retaining wall calculator to get a no-obligation instant quote.

Areas We Cover Across Australia

Retaining Wall Supplies delivers concrete sleepers and galvanised steel posts Australia-wide, with fast turnaround from nearby warehouse. Our engineered sleepers and UC posts are available for quick pickup or delivery.

Main service locations:

  • Melbourne – pickup available from Dandenong South, Bayswater and Campbellfield
  • Brisbane – sleepers and steel stocked in Brendale and Beenleigh
  • Sydney – steel and sleepers available from Wetherill Park
  • Adelaide – concrete sleeper supply from Lonsdale
  • Canberra – delivery available across ACT

We also service regional areas including Geelong, Ballarat, Bendigo, Mornington Peninsula, Gold Coast, Sunshine Coast, Newcastle, Toowoomba and Ipswich. This helps customers find the right concrete sleepers and retaining wall steel posts no matter where they are in Australia.

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