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Retaining Wall Supplies Sydney - Concrete Sleepers & Steel Posts

Retaining Wall Supplies Sydney supplies 60MPa steel-reinforced concrete sleepers, galvanised steel posts, and fencing components for retaining wall projects across Sydney and New South Wales.

We specialise in heavy-duty concrete sleepers designed for structural and load-bearing retaining wall applications. Our Sydney range pairs 60MPa concrete sleepers with compatible galvanised steel posts, allowing you to build straight boundary walls, stepped retaining walls, and engineered retaining walls.

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

Speak to a retaining wall expert. Call us at 0485 856 986.

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

Our Concrete Sleepers in Sydney

We supply 60MPa steel-reinforced concrete sleepers for retaining wall projects across Sydney and NSW. These sleepers are suited to structural and higher load-bearing applications.

Sydney sleeper specifications include:

Strength rating: 60MPa

Thicknesses: 75mm, 80mm, 100mm, 120mm

Lengths: 1.8m, 2.0m, 2.4m, 3.0m

Finishes: Ashwood, Cove, Kensington, McLaren, Lonsdale, Blackwood

All sleepers are manufactured to comply with AS3600/2009 and reinforced with steel, making them suitable for use in engineered retaining wall designs when specified correctly.

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60MPa NSW, Concrete Sleepers Sydney NSW, Sydney

McLaren Sleepers NSW
Price range: $59.18 through $108.19 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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60MPa NSW, Concrete Sleepers Sydney NSW, Sydney

Ashwood Sleepers NSW
Price range: $58.28 through $77.66 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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60MPa NSW, Concrete Sleepers Sydney NSW, Sydney

Blackwood Sleepers NSW
Price range: $48.07 through $104.10 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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60MPa NSW, Concrete Sleepers Sydney NSW, Sydney

Lonsdale Sleepers NSW
Price range: $43.10 through $82.40 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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60MPa NSW, Concrete Sleepers Sydney NSW, Sydney

Cove Sleepers NSW
Price range: $58.74 through $105.99 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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Concrete Sleepers Sydney NSW, Concrete Under Fence Plinths Sydney, Sydney

Lonsdale UFP STD NSW
Original price was: $55.18.Current price is: $49.71. inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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60MPa NSW, Concrete Sleepers Sydney NSW, Sydney

Kensington Sleepers NSW
Price range: $60.72 through $109.84 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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Concrete Sleepers Sydney NSW, Concrete Under Fence Plinths Sydney, Sydney

Blackwood UFP NSW
Original price was: $59.22.Current price is: $53.35. inc. GST Select options This product has multiple variants. The options may be chosen on the product page

Retaining Wall Steel Posts and Brackets - Sydney

Concrete sleeper retaining walls rely on correctly sized galvanised steel posts for structural support. We supply steel posts compatible with 60MPa concrete sleepers, including:

H-Beam (UC) steel posts
- 100UC
- 150UC
C-Channel (TFC/PFC) steel posts
- 100TFC
- 150TFC
Corner steel posts
- 90° corner posts
- 45° corner posts
Fence brackets
- Timber fence brackets
- Colorbond fence brackets

Steel post sizing depends on sleeper thickness, wall height, embedment depth, and engineering design. Our team can assist with confirming the correct post configuration for your retaining wall layout.

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C Channel Steel (TFC), Retaining Wall Steel Posts Sydney, Sydney

100 TFC Channel Galvanised Steel NSW
Price range: $17.60 through $105.44 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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H Channel Steel (UC), Retaining Wall Steel Posts Sydney, Sydney

100 UC 14 H Beam Galvanised Steel NSW
Price range: $29.70 through $178.20 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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Fence Brackets NSW, Retaining Wall Steel Posts Sydney, Sydney

Fence Bracket HDG 700 x 48 x 5 (Colourbond) NSW
Original price was: $19.36.Current price is: $17.60. inc. GST Add to cart
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Fence Brackets NSW, Retaining Wall Steel Posts Sydney, Sydney

Fence Bracket HDG 700 x 70 x 8 (Timber) NSW
Original price was: $21.78.Current price is: $19.80. inc. GST Add to cart
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H Channel Steel (UC), Retaining Wall Steel Posts Sydney, Sydney

150 UC 23 H Beam Galvanised Steel NSW
Price range: $59.40 through $475.20 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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C Channel Steel (TFC), Retaining Wall Steel Posts Sydney, Sydney

150 TFC Channel Galvanised Steel NSW
Price range: $49.50 through $396.00 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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90 degree corner, Retaining Wall Steel Posts Sydney, Sydney

100 TFC 90 Degree Corner Galvanised Steel NSW
Price range: $52.80 through $264.00 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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45 degree corner, Retaining Wall Steel Posts Sydney, Sydney

100 TFC 45 Degree Corner Galvanised Steel NSW
Price range: $59.40 through $297.00 inc. GST Select options This product has multiple variants. The options may be chosen on the product page

Concrete Under-Fence Plinths (Sydney)

Under-fence concrete plinths are used to close gaps beneath fencing and improve privacy, security, and finish along boundary retaining walls.

We supply 50mm reinforced concrete under-fence plinths in Sydney, including:

Lonsdale under-fence plinths
Blackwood under-fence plinths

These plinths integrate with galvanised steel posts and common fencing systems, making them suitable where retaining walls and fencing must work together.

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Concrete Sleepers Sydney NSW, Concrete Under Fence Plinths Sydney, Sydney

Lonsdale UFP STD NSW
Original price was: $55.18.Current price is: $49.71. inc. GST Select options This product has multiple variants. The options may be chosen on the product page
-10%

Concrete Sleepers Sydney NSW, Concrete Under Fence Plinths Sydney, Sydney

Blackwood UFP NSW
Original price was: $59.22.Current price is: $53.35. inc. GST Select options This product has multiple variants. The options may be chosen on the product page

Retaining Wall Sleeper & Steel Calculator – Sydney

Use our retaining wall calculator to estimate 60MPa concrete sleeper and galvanised steel post quantities for your Sydney retaining wall project.

The calculator provides an indicative material estimate only, based on:

Wall height
Wall length
Sleeper thickness

The calculator helps to:

Estimate sleeper quantities
Calculate compatible steel post spacing
Plan material requirements before ordering
Reduce quoting and ordering errors

Final sleeper sizing, steel post selection, drainage, and footing details must always be confirmed based on site conditions and engineering requirements.

Important Notes for Retaining Walls in Sydney

Retaining walls over 600mm–1m may require council approval, depending on location and site conditions
Walls near boundaries, buildings, or driveways often require engineering design
Proper drainage is critical in Sydney’s clay soils to prevent wall movement or failure
This calculator does not replace engineering or council advice

For taller or load-bearing retaining walls, confirm requirements before ordering materials.

Total Sleepers

430.00

Total Steel

Choose Sleeper Length (mm)

Total Wall Length (Metres)

Wall Height (Metres)

Concrete Sleeper Requirements

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

Sleepers Per Sub Sections

10 pcs

Sub Sections

48 pcs

Total Sleepers Required

480 pcs

Steel Posts Requirements

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

Retaining Wall Height

0 mm

Why choose Retaining Wall Supplies in Sydney?

Outstanding Support

Support with sleeper thickness, steel compatibility, and quantities.

Obligation-Free Quote

Get an obligation-free estimate for your retaining wall project. Contact us today to discuss your requirements.

Pickup or Delivery Options

Collection where available, or delivery arranged across Sydney and NSW.

Best price guarantee

Competitive pricing on concrete sleepers and galvanised steel posts.

Our Customer Reviews

Our 5-star Goole reviews reflect what customers value most: accurate product advice, compliant materials, and reliable support from quote to delivery.

Engineer-Certified Retaining Wall Sleepers in Sydney

At Retaining Wall Supplies, all our concrete sleepers are engineered and certified to build retaining walls up to 4.5m high.

40MPa and 50MPa Concrete strength (complies with AS3600 / 2009)
2 x N10 (N12 on some products) Reinforcement Bars (ACRS Compliant).
Engineer certified and designed in Sydney and New South Wales.
Australian-made and owned.

Retaining Wall Solutions for DIYers, Trades, and Professional Installers

Find top-grade concrete sleepers and steel posts for any retaining wall project in Sydney. Ideal for DIYers, trades, and professionals, our range ensures durability and ease of installation.

DIY enthusiasts will appreciate our user-friendly products and guidance. Trade professionals can rely on the quality and strength of our materials for lasting results. For those seeking professional installation, we connect you with skilled Sydney contractors.
For all your retaining wall needs, choose our reliable and efficient solutions

Need Expert Advice on Your Retaining Wall Project?

If you’re unsure which 60MPa sleeper thickness, steel post type, or quantity is right for your retaining wall, our team can help. Call us for guidance on concrete sleepers, steel posts, under-fence plinths, and delivery options.

About Retaining Wall Supplies

Retaining Wall Supplies is an Australian-owned supplier of concrete sleepers, galvanised steel posts, and retaining wall components.

We support retaining wall projects across Sydney and Australia with compliant materials, practical advice, and reliable service. Whether you’re building a residential retaining wall or a larger engineered structure, our team helps you select materials designed for long-term performance.

Delivery and Pickup – Sydney & NSW

You can collect 60MPa concrete sleepers and galvanised steel posts from our Sydney warehouse at:

199 Hassall Street, Wetherill Park, NSW, 2164

3/458 Victoria St, Wetherill Park NSW 2164

Delivery is available across:

Metro Sydney
Surrounding NSW regions, including Newcastle

Interstate delivery to Melbourne, Brisbane, Adelaide, Gold Coast, and regional areas can be arranged on request.

Stock availability and delivery logistics are confirmed prior to dispatch based on product type, quantities, and transport requirements.

Our Most Popular Sydney Products

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60MPa NSW, Concrete Sleepers Sydney NSW, Sydney

McLaren Sleepers NSW
Price range: $59.18 through $108.19 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
-10%

60MPa NSW, Concrete Sleepers Sydney NSW, Sydney

Ashwood Sleepers NSW
Price range: $58.28 through $77.66 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
-10%

60MPa NSW, Concrete Sleepers Sydney NSW, Sydney

Blackwood Sleepers NSW
Price range: $48.07 through $104.10 inc. GST Select options This product has multiple variants. The options may be chosen on the product page
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60MPa NSW, Concrete Sleepers Sydney NSW, Sydney

Lonsdale Sleepers NSW
Price range: $43.10 through $82.40 inc. GST Select options This product has multiple variants. The options may be chosen on the product page

Frequently Asked Questions

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

What is the minimum order requirement for concrete sleepers in Sydney?

In Sydney, 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.

Do you offer delivery services in Sydney?

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

Can the sleepers be cut to size?

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

Do you provide installation services in Sydney?

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

Do I need council approval for my retaining wall?

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.

What if I need to cancel my order?

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.

What is your refund and returns policy?

If you cancel your order before Retaining Wall Supplies has paid the manufacturer and the transport company, we can arrange a full refund minus any credit card fees via a bank transfer within 5 business days

We are committed to providing you with the highest quality concrete products and steel. To ensure their safe transport and handling, we work closely with our manufacturers to follow strict standards. While this means we are unable to offer refunds, it also guarantees that you receive top-notch materials every time.

Can I install concrete sleepers myself, or do I need professional help?

While DIY installation is possible for smaller projects, Retaining Wall Supplies recommends professional installation for larger or more complex retaining walls to ensure safety and compliance with local regulations.

Do you have fencing contractors who can integrate fencing with retaining walls?

Yes, many fencing contractors specialize in integrating fencing with retaining walls to enhance the security and aesthetics of your property. This combined approach not only provides structural support but also adds privacy and style to your outdoor space. For expert fencing contractors in Melbourne who can handle such projects, visit Fencing Quotes Online.

How can I get in touch with you for my project?

You can reach us via our website, email, or phone. Our team is ready to assist with any queries you have regarding our products and services.

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!

0485 856 986

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

info@retainingwallsupplies.com.au

Cost Calculator

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.

Retaining Wall Supplies Sydney - Concrete Sleepers & Steel Posts

Our Concrete Sleepers in Sydney

Retaining Wall Steel Posts and Brackets - Sydney

Concrete Under-Fence Plinths (Sydney)

Retaining Wall Sleeper & Steel Calculator – Sydney