Frequently Asked Questions

General Questions

Both. We sell to both the general public and the trade.

We deliver all over SA & NSW – please contact us to discuss.

Afraid not – we simply manufacture and supply.

Please contact us if you’d like us to recommend some installers for your local area.

We also have an installation guide in our Product Guide.

Yes – Our 2.0 m and 2.4 m sleeper range is backed by a 20-year product warranty when professionally installed, giving added peace of mind for your project. For more information, visit our warranty information page.

Yes – you can pick up direct from our factory. Please call us in advance so we can prepare your order.

Please note that, due to WHS regulations and general road safety concerns, we can’t load cars, vans, station wagons, etc. with Concrete Sleepers, regardless of the size and quantity of the order.

Unfortunately, not – please visit our Contact Us page for our opening hours.

Please contact us so we can provide you with pricing to suit your requirements.

Trade Questions

Yes – we deliver via Semi-Trailer and unload using an All-Terrain Forklift.

Yes, we send SMS tracking notifications. Get real-time updates and stay informed at every stage of your delivery.

Yes – we can supply you with any type, size and length of steel. Please review our product section for a comprehensive list.

We don’t charge for the delivery of steel if it’s delivered with your sleepers.*

*Certain exclusions apply, i.e. large quantities and long lengths of steel.

If you are using our sleepers for your customers, then please contact your local Outback Sales Rep to discuss.

Technical Questions

Typically, any retaining wall that exceeds 1m in height requires engineering and council approval. Please note that these requirements vary between councils and states, so check with your local council for clarification.

Yes – all our sleepers can be cut to size.

Please note we do not offer a cutting service.

For more information, please refer to our blog article on cutting your sleepers.

The C channel is used for the start and finish of the wall (and for creating corners), and the I beam is used to continue the sleeper wall (i.e., it connects each sleeper bay).

I Beams can also be known as H Beams, UB (Universal Beams), or joiners, among other names.

C channels can also be known as end pieces, PFC, U-piece, etc.

Our Primed steel is powder-coated red and can be painted any colour you wish or treated with rust prevention solutions.

Galvanised steel is easier to work with because you can put it straight into the ground. There is no need to paint or treat it, unlike Primed steel. As it’s hot-dipped galvanised, it will last a long time before rusting occurs.

Our sleepers come in 2m and 2.4m lengths, 200mm high, and are available in a range of thicknesses to accommodate different wall heights.

We also manufacture 2m and 2.4m Cribs (100mm high) for each of our sleeper designs.

Please review the information on each of our product pages or contact us for more details.

You can build retaining walls up to 4m high using our engineered sleepers (subject to council approval and engineering).

No – UFPs are not engineered and designed to retain heavy compaction.

A light backfill (i.e., garden soil or bark) is acceptable; however, if paving and concrete will be against the UFP, then sleepers should be used instead. Please see the UFP page for more info.

UFPs primary function is to fill the gap underneath a fence, prolong the life of the fence panel by preventing it from rusting and provide extra privacy.

Steel lengths and sizes are to be confirmed by the site engineer, who will provide site-specific advice.

Structures over 1m in height will require council approval and site-specific engineering.

It is recommended for a minimum of 600mm in the ground for walls 600mm high or less.