Salt Air, Steel and the Coral Coast

A container fifteen minutes from the beach and one out at Gin Gin are the same box on delivery day. Five years later they are not.

Corten steel is designed to form a stable rust layer and then largely stop. That works well in dry inland air. Within a kilometre or two of the surf it works less well, because salt keeps the surface damp and the process never settles down. You see it first at the welds, the door hardware and any spot where the paint got knocked in transit.

Buy the grade up if it lives near the water

This is the one piece of advice that saves money rather than costing it. Inland, a well-chosen as-is or older used unit can be a sensible buy. At Bargara, Innes Park, Woodgate or the bay side of Hervey Bay, start at cargo-worthy and give serious thought to new single-trip if it's going to sit outside for a decade.

The reason isn't appearance. It's that a cargo-worthy unit has sound seals, intact paint and no existing corrosion sites to work from, and near salt an existing rust spot is a head start you've paid for. Bear in mind that as-is units are not sold as watertight — we'll tell you plainly which grade you're looking at, and we'll send photos of the actual unit on request before it's delivered so you can see it for yourself.

Siting it on a coastal block

Face the doors away from the prevailing south-easter if the block allows. The door end is the only part of a container that isn't a sealed panel, and it's where wind-driven salt spray gets in and sits on the gear.

Get it up on blocks — the same rule as everywhere, but it matters more here because sand holds moisture against the underside and the cross-members are where corrosion does its quiet work. Concrete pavers or sleepers under the four corner castings, level, with air moving underneath.

And think about soft ground before delivery day. Sand under a loaded tilt-tray is a genuine problem at Woodgate and on the older Bargara beachfront blocks. If there's a slab or a compacted driveway, that's usually where the container should go.

The maintenance that actually matters

It's about fifteen minutes twice a year, and it's the difference between a unit that looks tired at eight years and one that's still sound at twenty.

Hose it down. Salt is a deposit — rinsing it off with fresh water is the single most effective thing you can do, particularly on the roof and the door end.

Chase the scratches. Any bare steel or browning mark gets wire-brushed back and painted. Cold galvanising paint or a decent enamel is fine. Do it when you see it, not next year.

Grease the door gear. Locking bars, cams and hinges. Salt seizes hardware faster than it eats panels, and a container you can't open is no use to anyone.

Check the seals. Perished rubber lets spray and humid air in, and it's a cheap thing to replace.

Buying for a block near the water and not sure which grade to spend on? Ring 07 4152 3388 and tell us where it's going — the answer changes with the postcode.