COVID-19 Update
An important update regarding COVID-19 ...
We have been making concrete sleepers for over 20 years, and have manufactured over 3 million of them. No wonder we are so good at what we do.
It does not matter what type of retaining wall you need. We promise to have a style that will suit your landscape project and help bring beauty and value to your home.
The stronger the concrete, the more durable your retaining wall will be. With decades of experience, we manufacture the strongest concrete sleepers in the industry.
When it comes to helping you with your landscaping project, we know our products inside and out. So for friendly advice and fast order turn around – call us today.
The construction of one or more retaining walls will often be an essential part of a new home or garden landscape. It is often one of the first projects undertaken and one of the costliest and hardest to fix if not done correctly the first time. For this reason, your retaining wall must last as long as possible.
Concrete Sleepers are the perfect retaining wall building material. The strength of concrete allows you to build higher walls, and they will never rot or be affected by pests. These characteristics make them the ideal zero maintenance solution.
Concrete retaining walls are easy to install and perfect for levelling sloped land, minimising erosion, creating feature garden walls or simply building several veggie patches.
Reinforcing Bars
All our sleepers have 2 x N10 Reinforcement bars throughout the sleepers
*Cribs have 1 x N10 Reinforcement bar
50 Year Product Lifespan
We manufacture our sleepers to the Australian standard AS3600/2018 which means that our sleepers are designed for a 50-year product lifespan.
Exceptional Strength
Industry leading concrete strength of 60 MPa.
*50% stronger than 40 MPa concrete (based on equivalent dimensions).
1. Reinforcing Bars
All our sleepers have 2 x N10 Reinforcement bars throughout the sleepers
*Cribs have 1 x N10 Reinforcement bar
2. 50 Year Product Lifespan
We manufacture our sleepers to the Australian standard AS3600/20018 which means that our sleepers are designed for a 50-year product lifespan.
3. Exceptional Strength
Industry leading concrete strength of 60 MPa.
*50% stronger than 40 MPa concrete (based on equivalent dimensions).
1. Reinforcing Bars
All our sleepers have 2 x N10 Reinforcement bars throughout the sleepers
*Cribs have 1 x N10 Reinforcement bar
2. 50 Year Product Lifespan
We manufacture our sleepers to the Australian standard AS3600/20018 which means that our sleepers are designed for a 50-year product lifespan.
3. Exceptional Strength
Industry leading concrete strength of 60 MPa.
*50% stronger than 40 MPa concrete (based on equivalent dimensions).
OSA would like to wish all our customers and their families a safe and happy Christmas....
There are a few basic care principles that should be adhere to, to ensure that your sleepers look their best and perform to their capabilities....