How far apart should weep holes be in a retaining wall? Spacing, placement height, and row spacing for taller walls - matched to RWD's own published guidance.
What are weep holes in a retaining wall? How they work, AS 4678 guidance, and why they're secondary drainage, not a replacement for ag pipe.
Correct steel post spacing and embedment depth for retaining walls: standard centres, the one-third embedment rule, and how soil type and surcharge change the numbers.
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.
Everything you need to plan a timber sleeper retaining wall — treated pine sizing, steel post spacing, drainage and Australian height limits, in one guide.
