Concrete sleepers have overtaken treated pine as the go-to retaining wall material across Melbourne. They don’t rot, termites can’t eat them, they are non-combustible (important in bushfire overlay areas), and they come in finishes that suit a modern garden. A sleeper is only as good as the steel post holding it, though. Here is what […]
Galvanised steel posts turn up everywhere on a building site: holding back soil in sleeper walls, carrying pergola beams, supporting carports and acting as fence or screen posts. The steel shape and size changes from job to job. The zinc coating that keeps the post intact in the ground does not. This guide covers how […]
Most retaining wall problems are specification problems: the right steel installed to the wrong embedment, or the correct posts holding back saturated clay with nowhere for the water to go. This is the checklist we walk through with builders and landscapers before cutting steel — the practical version of steel post retaining wall specifications. 1. […]
UB150 is shorthand for the 150 mm universal beam family — usually written 150UB14.0 or 150UB18.0. It is one of the most useful small sections for retaining walls: deep enough to be genuinely stiff, light enough for two people to place by hand, and cheap enough that closer post spacing stays economical. The sizes in the […]
“What steel do I need for my retaining wall?” is the question we answer most often. The honest reply is that retaining wall steel is a system, not a single product: the section decides stiffness, the grade decides strength, the finish decides how long it lasts, and the spacing and footing decide whether any of […]
Whether you spell it galvanized or galvanised, the product is the same: a structural steel post dipped in molten zinc so it can sit in wet soil for decades without rusting away. Because most engineering software, imported catalogues and search habits use the American spelling, we get asked for galvanized steel retaining wall posts almost […]