Buying a shipping container in Brisbane: what to check before you pay

Buying a shipping container is not complicated, but it is easy to overpay or end up with the wrong box if you do not know what to look at. Whether you are buying new-build or cargo-worthy, here is a practical checklist from a Brisbane seller, so you buy with confidence.

1. Confirm the grade and what it means

Make sure you know whether you are buying new-build (single-trip) or cargo-worthy, and that the price matches the grade. A new-build should be near new with minimal marks. A cargo-worthy will show honest wear but must still be wind and watertight and structurally sound. If a price seems too good for the grade being described, ask more questions.

2. Wind and watertight

This is the single most important test for any container that will store goods. Wind and watertight (often shortened to WWT) means no daylight through the walls or roof, and no water getting in. A good seller will confirm this plainly. If you can, inspect inside on a bright day, any pinholes of light are a red flag.

3. The floor

Container floors are usually marine plywood over steel cross members. Check the floor is solid, dry and not delaminating. Some staining is normal on a used container; soft or rotten sections are not. On a new-build the floor should be near pristine.

4. Doors and seals

The doors should open, close and lock smoothly, and the rubber seals should be intact. Doors that have dropped or been forced are a sign of a hard life or a bent frame. Test them yourself if you can, this is where a lot of a container's day-to-day usability lives.

5. Rust: surface vs structural

Surface rust is cosmetic and normal on a cargo-worthy unit, it does not affect the box doing its job. What you want to avoid is structural rust: heavy corrosion that has eaten through steel, especially around the base rails and corner castings. Learn the difference, or buy from someone who will tell you honestly which is which.

6. CSC plate and certification

If your container will ever be transported by road or rail loaded, or shipped, it may need a valid CSC plate (the safety approval plate). Cargo-worthy units can typically be CSC certified. If certification matters for your use, confirm it before you buy.

7. Delivery, and what is included

A container is only useful once it is on your site. Before you commit, confirm:

• Is delivery included in the price, or added separately?
• Does the price include GST?
• Can the truck access your site, and how will the box be set down?

At FlowState, our container prices include GST and delivery within 50km of the Port of Brisbane, so the price you see is the price you pay. Beyond that range, we will quote the delivery honestly up front.

8. Buy the right size

Finally, make sure the size fits the job. A 20ft container suits most storage and site needs; a 40ft gives roughly double the space. If you are unsure, our sizing guide walks through the exact dimensions so you can plan before you buy.