How deep should retaining wall posts be set in Australia? The standard rule is one-third of total post length in the ground — so a 1.5m post needs 500mm embedment for a 1.0m wall. This guide covers embedment depth by wall height, soil type adjustments, surcharge load rules, and worked examples for H-beam and C-channel posts.
A practical guide to retaining wall post footings in Australia — covering embedment depth, footing hole size, concrete quantity, soil conditions, and when to confirm footing design with a structural engineer.
