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SuperSleeper Composite Sleeper

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Our versatile SuperSleepers can be painted to match the unique aesthetics of your property, making your retaining walls a seamless part of your landscape design.

SuperSleeper is a horizontal support beam, used as the primary support of the wall structure. They can also be used in garden beds, pathways, and other landscaping features.

205x60mm SuperSleeper Composite Sleeper.
(1550mm – W3.7kg; 1950mm – W4.6kg; 2350mm – W5.55kg).

$ 50.36 50.36 AUD $ 50.36 Tax Included

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Sleeper Colour: Grey

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SuperSleeper – Lightweight Composite Sleepers
The smart, modern alternative to heavy concrete and timber sleepers.

SuperSleeper is a high-performance FRP (fibre-reinforced polymer) composite sleeper designed for retaining walls, raised garden beds, and landscaping projects. Weighing just 3.7–5.55 kg, it delivers the strength and durability you need without the back-breaking weight of traditional materials.

Each sleeper is precision-engineered to resist rot, rust, warping, cracking, and UV damage — giving you a clean, modern finish that lasts for decades in Australian conditions.

Why Choose SuperSleeper?

  • Extremely Lightweight At under 6 kg (compared to ~80 kg for a concrete sleeper), you can lift, carry, and install SuperSleepers yourself. No heavy machinery or large crews required — making it perfect for DIY projects and faster for professionals.
  • Built to Last Engineered for a service life of over 100 years and compliant with Australian structural standards for retaining walls up to 2 m high (depending on length and design).
  • Tough & Low Maintenance Resistant to UV, fire, corrosion, moisture, and termites. Built-in UV protection and surface coatings keep it looking good with virtually zero maintenance.
  • Eco-Friendly Choice Manufactured using ~75% less CO₂ than concrete, with significantly lower transport emissions thanks to its light weight.
  • DIY & Trade Friendly Smooth, splinter-free surfaces. Easily cut to size with standard tools. Clean, professional results every time.
  • 35-Year Warranty Backed by a 35-year warranty when installed correctly using SuperSleeper accessories and in accordance with approved engineering and compliance requirements.

Key Features

  • Won’t warp, crack, or rot
  • UV and weather resistant
  • Ideal for retaining walls, raised garden beds, and edging
  • Lightweight and easy to handle
  • Designed and tested for Australian conditions

Technical Specifications

LengthHeightWidthWeightMax Recommended Wall Height*
1550 mm205 mm60 mm3.7 kgUp to 2000 mm
1950 mm205 mm60 mm5.4 kgUp to 2000 mm
2350 mm205 mm60 mm5.55 kgUp to 600 mm

*Maximum wall heights are indicative and depend on soil conditions, surcharge, and engineering design. Always consult a qualified engineer for walls over 1 m or in challenging conditions.

Relevant Australian Standards: AS 4678 – Earth-retaining structures AS 1170.2 – Wind loads AS 1170 – Structural design actions

Ready to Upgrade Your Retaining Wall or Garden?

SuperSleeper makes professional-looking retaining walls and garden beds faster, safer, and more affordable to build.

Want to install it yourself? Read our step-by-step guide: How to Install SuperSleepers

Prefer to see it in person? Visit our Caboolture warehouse for a product comparison and personalised consultation for your project.