Retaining Wall Advice

Not every retaining wall needs a structural engineer — but many do, and getting it wrong can mean council fines, insurance issues, or a wall that fails. This guide explains exactly when engineering is required in Australia, what triggers the need for a permit, and what an engineer actually provides.

Active soil pressure is the lateral force that retained soil exerts on a retaining wall. Understanding it is essential for specifying the right post size, embedment depth, and sleeper strength for your site.