Retaining Wall How-To Guides & Resources

Everything you need to plan, design, and build a concrete sleeper retaining wall in Australia — written by trade professionals with 40+ years of hands-on experience.

Getting Started

• How to Build a Concrete Sleeper Retaining Wall — Step-by-Step Guide
• DIY vs Professional Installation — Which Is Right for You?
• How Much Does a Retaining Wall Cost in Australia? (2026 Guide)
• Retaining Wall Cost Calculator

Choosing the Right Materials

• 75mm vs 100mm Concrete Sleepers — Which Should You Choose?
• Charcoal vs Woodgrain vs Smooth Finish — Which Concrete Sleeper?
• H-Beam vs C-Channel Steel Posts — Which Do You Need?
• Concrete Sleepers vs Timber Sleepers — Which Is Better?

Installation

• Retaining Wall Footings — How Deep and How Much Concrete?
• Post Spacing — How Far Apart Should Posts Be?
• How to Build a Retaining Wall on a Slope — Stepped & Tiered Walls
• How to Build a Retaining Wall Corner — L-Shapes & 90° Joins
• Building on a Boundary — Rules, Setbacks & Best Practice

Drainage

• Retaining Wall Drainage — Why It Matters and How to Do It Right
• Ag Pipe for Retaining Walls — What Size and How to Install It
• Geotextile Fabric — What It Does and How to Use It
• Weep Holes — What They Do and Where to Put Them

Regulations & Council Approval

• Height Limits & Council Approval in Australia
• How to Get Council Approval for a Retaining Wall
• State-by-State Regulations Guide

Maintenance & Repairs

• Retaining Wall Maintenance Guide
• How to Fix a Leaning or Bowing Retaining Wall
• Drainage Problems & Fixes — How to Diagnose and Repair

Ready to Start?

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