Every certificate, specification and guide for our concrete sleeper and steel post retaining wall systems in one place. All documents are free to download and current as supplied by our engineer-compliant manufacturers.
How our sleepers are made
How our concrete sleepers are made and tested: mix grades, reinforcement, casting and the twice-weekly batch testing behind the certificates below.
Engineering certificates and specifications
- Retaining wall engineering overview (PDF)
- 40MPa sleeper engineering certificate (PDF)
- 50MPa sleeper engineering certificate (PDF)
- 60MPa sleeper engineering certificate (PDF)
- Structural design certificate (PDF)
- Load capacity certificate (PDF)
Guideline span and height tables are published at retaining wall engineering. Walls over 1 metre, or walls carrying a surcharge, generally need certification by an independent engineer.
Installation and planning guides
- Concrete sleeper installation guide (PDF)
- How to build a sleeper retaining wall in 8 steps
- Concrete sleeper size guide
- Retaining wall installation guide
- Steel post specifications
Warranty, quality and pricing
- Warranty and quality assurance
- Instant retaining wall calculator
- Pickup and delivery information
- Trade accounts
Need a document we have not published, such as the warranty statement for a specific range? Contact us and we will send it the same business day.