Retaining Wall Advice

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.

A practical guide to retaining wall drainage in Australia — covering hydrostatic pressure, ag pipe, geotextile filter fabric, drainage gravel, weep holes, and the most common drainage mistakes that cause retaining walls to fail.

A practical guide to agricultural pipe (ag pipe) for retaining wall drainage in Australia — covering pipe size, slotted vs solid, sock wrapping, fall requirements, outlet options, and installation tips.