The standard box, and the right answer most of the time. Corrugated steel, marine-ply floor, double cargo doors at one end, and — in cargo-worthy grade — sealed against rain from above.
Two things work on steel here that do not work as hard inland. The first is salt. Anywhere from Iluka round through Woolgoolga to Sawtell you are in salt air, and it finds bare metal — a scrape from a forklift tine or a bolt hole left open will show rust in a season rather than in five years. Touch up bare steel when you see it and a container on this coast lasts as long as one anywhere else.
The second is humidity. A sealed steel box in a subtropical summer will sweat if you shut damp gear inside it and leave it. Load dry, allow some airflow if the contents will tolerate it, and consider vents if it is going to hold anything that minds moisture. This causes far more damage on the North Coast than leaks do.
Shade is the trade-off nobody expects. Under a tree keeps the interior temperature down but stops the roof drying and drops leaf litter into the corner castings, which holds water against the steel. In the open, it dries out fast and lasts better. If you can, site it clear and accept that it will be warm inside on a February afternoon.
New or single-trip has made one voyage — sealed, unmarked, no history. Cargo-worthy is used stock we check wind and watertight before it leaves: doors work, seals seat, floor is sound, no daylight through the roof or corners. As-is is the cheap grade, sold exactly as it stands and not sold as watertight. We name the grade on every quote.
Our general purpose units are fitted with one. It is a steel shroud welded over the padlock so bolt cutters cannot get a bite on the shackle. On a container sitting on an unattended site or an out-of-town block, it is the single most useful thing on the door.
Marine-grade plywood on steel cross-members in nearly all cases, typically 28mm. It carries a forklift. On used units the floor is one of the things we sound out before the container leaves — a soft patch usually means water has been sitting under something for a long time.
Yes, and we can point you at people locally who do that work properly. Cutting a container is structural — the corrugation is what carries the load — so it wants framing and sealing done by someone who has done it before. If the plan is a conversion, start with a new single-trip high cube rather than a cheap used box.
Availability moves with stock — a call gets you today's answer, not last month's.
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