Retaining Wall Advice

From garden borders to tiered slopes and driveway walls — see where woodgrain concrete sleepers work best, and how to pair them with your landscaping.

How tall can a timber sleeper retaining wall be before you need council approval or an engineer? Thresholds by state, plus the practical height limit for treated pine.

Building a retaining wall on a sloped block requires stepped footings, careful post embedment calculation, and often a tiered wall design to manage large level changes safely. This guide covers everything you need to know about retaining walls on sloped sites in Australia — from design principles to drainage and council approval.

Tiered retaining walls are the best solution for steep slopes. This guide covers tier spacing rules, height limits, drainage between tiers, post selection, and step-by-step installation.