SuperSleeper Composite Sleeper
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).
| Sleeper Colour: Grey |
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
| Length | Height | Width | Weight | Max Recommended Wall Height* |
| 1550 mm | 205 mm | 60 mm | 3.7 kg | Up to 2000 mm |
| 1950 mm | 205 mm | 60 mm | 5.4 kg | Up to 2000 mm |
| 2350 mm | 205 mm | 60 mm | 5.55 kg | Up 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.

