13/10/2026
Most of the time rust is the enemy, but weathering steel (often called Corten) is made to rust. As it weathers, the surface forms a tight, stable patina that slows further corrosion, so it can sit outside unpainted and hold that deep orange-brown look.
It’s a go-to for garden edging, planter boxes and sculptures. People love the rustic look and low maintenance.
Got an outdoor project in mind? It's worth knowing: the protective layer needs regular wet/dry cycles to form. Near the coast, or anywhere it stays constantly damp (buried in soil, under wet leaves, sitting in water), it can keep corroding instead of stabilising. Early run-off can also stain concrete and paving.
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