
ECOSLEEPER RETAINING WALL SYSTEM
AUSTRALIA’S PREMIUM FRP COMPOSITE SLEEPER
EcoSleeper sets the benchmark for composite retaining wall solutions, combining superior strength, durability, and innovation.
As the most rigorously tested FRP sleeper in Australia, engineered for exceptional vertical load performance, EcoSleeper is built to withstand the toughest conditions. With greater thickness, unmatched structural integrity, and a premium-quality finish, EcoSleeper offers a smarter, long-lasting solution for retaining walls.
Designed for both DIYers and professionals, it’s the ultimate choice for those who want strength without compromise.
ECOSLEEPER RETAINING WALL SYSTEM
FRP SLEEPERS
The foundation of your project starts here as you choose the right sleeper for your project. Ecosleeper is the premium composite sleeper on the market, proven by our rigorous testing and our uncompromising approach to quality. Sleepers are 3mm thick and are available in 2 colours.
FRP POSTS
Our FRP posts have also undergone rigorous independent testing and are 4mm thick, making them the premium composite posts on the market. FRP Eco Posts are available in Concrete Grey
Note: For walls under 1m high, FRP EcoPosts or 65 series steel posts can be used. For walls over 1m high, 100 series steel posts must be used.
FRP CAPPING
AllCapps is our innovative capping solution designed to give your retaining wall a sleek and polished finish. Perfect for maintaining the FRP look if you’re using steel posts to build your wall.
INDEPENDENTLY TESTED TO
GUARANTEE QUALITY
We don’t just say EcoSleeper is Australia’s best composite sleeper, we’ve done the testing to prove it!
We chose to use premium materials, decided to increase thickness and optimsed quality at every point – and the results speak for themselves.
EcoSleeper is the most rigorously tested composite sleeper and posts in Australia, independently verified at the University of South Australia. Engineered for strength, durability, and performance, it meets key structural and earth-retaining standards—giving you confidence in every build.

BUY FROM THE BEST
THE SMARTER, STRONGER COMPOSITE SLEEPER
Not all composite sleepers are made equally. We wanted to ensure our FRP composite products are of the highest quality so we can give you peace of mind.
INDUSTRY-LEADING STRENGTH & QUALITY
Not all composite is made equal. That’s why we chose to use premium FRP comprising:
» 70% E-Glass
» 20% Polyester
» 10% Aluminum Hydroxide
ENGINEER CERTIFIED
Engineer certified for walls up to 900mm (using EcoPosts) and higher walls using steel posts.
AUSTRALIA’S MOST RIGOROUSLY TESTED
Independently tested at the University of South Australia, EcoSleeper is engineered for superior strength, durability, and compliance with key structural standards.

PREMIUM THICKNESS
At 3mm, our sleepers are thicker and stronger than standard composite sleepers, providing long-term reliability and structural integrity.
SUSTAINABLE &
ECO-FRIENDLY
FRP reduces environmental impact while delivering a high-performance, long-lasting solution.
LIGHTWEIGHT
YET SUPER STRONG
» FRP EcoSleepers: 3.2kg per metre
» FRP H-Posts: 2.1kg per metre
» FRP C-Posts: 1.3kg per metre
» FRP 90 Deg Corner: 2.6kg per metre
INDUSTRY-LEADING STRENGTH & QUALITY
Not all composite is made equal. That’s why we chose to use premium FRP comprising:
» 70% E-Glass
» 20% Polyester
» 10% Aluminum Hydroxide
ENGINEER CERTIFIED
Engineer certified for walls up to 900mm (using EcoPosts) and higher walls using steel posts.
AUSTRALIA’S MOST RIGOROUSLY TESTED
Independently tested at the University of South Australia, EcoSleeper is engineered for superior strength, durability, and compliance with key structural standards.
PREMIUM THICKNESS
At 3mm, our sleepers are thicker and stronger than standard composite sleepers, providing long-term reliability and structural integrity.
SUSTAINABLE &
ECO-FRIENDLY
FRP reduces environmental impact while delivering a high-performance, long-lasting solution.
LIGHTWEIGHT
YET SUPER STRONG
» FRP EcoSleepers: 3.2kg per metre
» FRP H-Posts: 2.1kg per metre
» FRP C-Posts: 1.3kg per metre
» FRP 90 Deg Corner: 2.6kg per metre
EXPLORE OUR
RETAINING WALL SOLUTIONS
CS SIGNATURE
CONCRETE SLEEPERS
For all structural retaining walls using our signature concrete sleepers.
CS MINI
RETAINING WALL SYSTEM
Lightweight concrete sleepers for tight access & DIY walls up to 900mm.
ECOSLEEPER
RETAINING WALL SYSTEM
Ecofriendly sleepers under 6kg each for DIY retaining wall projects.
EXPLORE OUR
SLEEPERS & SLEEPER SYSTEMS
WE’RE FOR YOU
BECOME A TRADE CUSTOMER OR PREFERRED INSTALLER
Join the CS Retaining Walls Brisbane network and gain access to exclusive benefits designed to support your business.
As a trade customer or preferred installer, you’ll enjoy competitive pricing, priority access to our full product range, and expert support to help you deliver exceptional results for your clients.
Plus, with our innovative solutions like the AllCapps capping system and lightweight EcoSleepers, you’ll stay ahead of the curve with products that are as efficient as they are reliable. Partner with us and take your retaining wall projects to the next level.