Everyone in Gympie knows someone who's lost a shed's worth of gear to the Mary. Here's what a container can and can't do about that.
The pattern repeats every few wet seasons: the river comes up faster than forecast, and the things people lose aren't houses — they're the contents of low sheds, garages and under-house storage. Tools, mowers, camping gear, boxes of family stuff. That's exactly the layer of possessions a shipping container protects best.
Let's be straight, because getting this wrong is what costs people everything they stored. A shipping container is wind and watertight against rain from above. It is not sealed against rising water. If a flood gets up to the door seals, water comes in — and then it sits there, because the same steel box that sheds rain will hold water like a bathtub. Nobody should be selling you a container as flood-proof, us included.
A shed is wherever the slab is, forever. A container can be placed — which means it can be placed high, and shifted again if you got it wrong. Its floor sits up off the ground on blocks rather than down on a slab, it's heavy enough not to blow away, and it locks. In a flood town, being able to choose the ground your gear sits on is the whole advantage. The rest of this is about using that properly.
When we deliver around Gympie we think about water. The high corner of the block beats the convenient corner near the gate. Twenty metres further from the house can be three metres higher above the flood line. Corners up on concrete blocks buys you another few hundred millimetres of grace. Find out the flood level for your address on the council's flood mapping and put the container above it — that number, not the container, is what protects your gear. Tell us your street and we'll talk it through; we know which parts of town go under.
One more thing worth knowing: an empty container is buoyant. In deep water a light one can lift, float and travel — a problem for your gear and for whatever it fetches up against. If it's going somewhere that could genuinely go under, it wants weight in it, and it wants ground that doesn't.
The week before forecast rain, container owners around here load in the mower, the tools, the generator and anything with a motor — replaceable gear that's an expense and a nuisance to lose. After the 2022 floods, more than a few Gympie customers told us the container paid for itself in one wet week.
The irreplaceable stuff is a different conversation. Photos, documents, anything you can't buy again — that goes with you, or to someone on high ground. Don't leave it in a steel box on a block that might go under on the strength of the word "watertight".
Want one on your block before the next wet season? Ring 0487 176 951 — local advice comes free with the quote.