Retaining Wall Advice

Drainage failure causes more retaining wall collapses in Australia than anything else. Here's how that and 7 other common causes actually work.

Leaning, cracking, bulging, or water pooling? Here's what each of the 7 warning signs actually means, and whether it's cosmetic or urgent.

Hairline, vertical, horizontal or stair-step — here's what each type of retaining wall crack means, and when to stop monitoring and get it checked.

Concrete sleepers can last 80 years, treated pine as little as 15. Here's how long each retaining wall material actually lasts, and what shortens or extends it.

A clear decision framework for whether your failing retaining wall needs repair or full replacement, plus what actually drives the cost either way.

Yes, tree roots can push over a retaining wall. Here's how it happens, which Australian trees cause the most damage, and safe planting distances.

A full step-by-step guide to removing an old retaining wall and building its replacement, from permits and drainage to the final build.

Not sure what's wrong with your retaining wall? Start here to find the exact guide for your problem, from diagnosis through to repair or replacement.

Choosing the right screws and bolts for fence brackets helps prevent corrosion and protects the connection over time. Learn which galvanised and stainless steel fasteners to use, which materials to avoid, and how to correctly fix fence brackets to retaining wall steel posts. 

Not all fence post caps are created equal, and buying by label size is the most common reason they don't fit. Here's how to match a cap to timber, Colorbond, hollow steel and retaining wall posts, and when a cap is doing real work versus just finishing the look.

One bracket, two post profiles. Here's why the same fence bracket kit suits both H-beam and C-channel retaining wall posts, where the plate actually seats on each, and when you're really asking a different question about wall design instead.

"Galvanised" covers four very different finishes with very different lifespans. We break down what AS/NZS 4680 actually guarantees, how long a coating lasts by corrosivity zone, and where fence brackets really lose their protection on site.