Product Standards & Specifications

All retaining wall materials supplied by Retaining Walls Direct are manufactured to Australian Standards and independently tested for compliance. This page outlines the key standards, specifications, and technical data relevant to our concrete sleeper and steel post range.

Concrete Sleeper Standards

• Compressive strength — 40MPa, 50MPa, and 60MPa specifications available; tested to AS 1012 Methods of Testing Concrete
• Reinforcement — high-tensile steel reinforcement to AS/NZS 4671
• Dimensions — standard 2000mm length; 75mm and 100mm thickness; 200mm width
• Retaining wall design standard — AS 4678-2002 Earth Retaining Structures

Steel Post Standards

• Steel grade — structural grade steel to AS/NZS 3678
• Galvanising — hot-dip galvanised to AS/NZS 4680 for long-term corrosion resistance in Australian soil conditions
• Section types — Universal Column (UC) H-beam and Parallel Flange Channel (PFC) C-channel sections
• Series — 100 Series (100 UC 14.8 / 100 PFC), 150 Series (150 UC 30 / 150 PFC), 200 Series (200 UC 46 / 200 PFC)

Key Australian Standards Reference

• AS 4678-2002 — Earth Retaining Structures — the primary design standard for retaining walls in Australia
• AS/NZS 4680 — Hot-dip galvanised coatings on fabricated ferrous articles
• AS/NZS 3678 — Structural steel — Hot-rolled bars and sections
• AS/NZS 4671 — Steel reinforcing materials
• AS 1012 — Methods of testing concrete

Downloads & Technical Data

For spec sheets, technical drawings, and MSDS documents, see our Downloads page.

Questions About Specifications

Our team can advise on the correct specification for your project. → Get a Free Quote or contact us with your project details.