How to Buy a Shipping Container Safely in NZ: Checklist

A used container is a simple product, but a poor one is expensive to fix and hard to resell. This checklist covers the decisions to make before you look, what to inspect on the container, how to buy on Trade Me, the warning signs of a container scam and the paperwork to hold when you pay. Keep it on your phone when you visit a yard or review photos from a seller.

Before you look: four decisions

1. Size. Measure what you will store and the space on site. Our guide to choosing a container size helps.
2. Grade. Storage needs wind and watertight. A home or office needs one-trip. Exporting goods needs cargo-worthy. See container grades explained.
3. Delivery. Work out whether a HIAB or a swinglift can reach the spot, and who arranges it. Trade Me sellers often leave transport to the buyer. Read HIAB vs swinglift before you commit.
4. Budget. Price the container delivered, with GST shown. In October 2026 a used wind and watertight 20ft had a median asking price of $3,680 incl. GST and a new one-trip 20ft $4,830 incl. GST, before delivery.

The inspection checklist

Work from the top down and from the outside in. Bring a torch, a screwdriver and a phone camera, and if you can, inspect on a dry, bright day.

The CSC plate and container number

Every container built for sea freight carries a CSC safety approval plate under the International Convention for Safe Containers. It is usually fixed to the left-hand cargo door. The plate shows the manufacture date, identification number, maximum gross weight and allowable stacking and racking loads. If a seller describes a container as cargo-worthy, the plate must also show a current examination date or approved continuous examination programme (ACEP) reference.

The container number on the doors and sides follows ISO 6346: a four-letter owner code ending in U, six digits and a final check digit. It should match the CSC plate, the listing and your invoice. A seller who will not give you the number before you pay is a warning sign. For storage on land a CSC plate is not a legal requirement, but it is the most reliable record of the container’s age.

If you need the container to carry cargo by sea again, our guide to container certification and CSC plates explains examination dates and recertification.

Buying a container on Trade Me

Trade Me is New Zealand’s main marketplace for containers, with trade sellers and private sellers listed side by side. A trade seller is covered by the Fair Trading Act and, if you buy for personal use, the Consumer Guarantees Act. Private sales are not covered by the Consumer Guarantees Act, so your inspection is your protection.

• Check the seller’s feedback and how long the account has been active.
• Ask whether the price includes GST and whether you will receive a tax invoice. Trade sellers on Trade Me generally show GST-inclusive prices.
• Confirm the pick-up location and who loads the container. Many listings state that a swinglift or HIAB is needed to uplift it.
• View the container, or ask someone local to view it for you.
• Keep messages on Trade Me so there is a record of what the seller said.

Container scam warning signs

Several large NZ container suppliers publish warnings about container scams, including fake websites and listings. Watch for these signs:

• A price far below the market. The cheapest new 20ft we found in October 2026 was $3,990 incl. GST, and that unit had a dent. A new container offered for much less deserves suspicion.
• A website or listing that copies a real company’s name or photos but gives a different phone number or bank account.
• Payment by bank transfer to a personal account, or in cryptocurrency or gift cards.
• Pressure to pay a deposit today to hold stock, with no viewing allowed.
• No company number, GST number or physical address, or details that do not match the public register.
• Refusal to give the container number before payment.

Look up the business on the New Zealand Companies Office register and call it on a number you find independently. If you think you have been targeted, contact your bank straight away and report it to Netsafe.

Shipping-Containers.co.nz does not sell containers or take payment for them. Suppliers who receive your request quote and invoice you directly. Read how our quote service works.

How to verify the seller

NZ Police in the Eastern District warned in April 2024 about shipping containers advertised on Facebook Marketplace and community pages that did not exist. The sellers asked for payment plus a delivery fee, offered a discount for paying quickly and then blocked the buyers. (NZ Police)

Shipping container seller verification takes a few minutes and is worth doing for every private or unfamiliar seller:

• Look the business up on the NZ Companies Office register and check the name matches the bank account you are asked to pay.
• Ask for a current photo or short video of the actual unit with the container number visible, and check the number on delivery.
• View the container at the yard if you can, or ask the seller to confirm the yard address.
• Be wary of prices well below the NZ price index and of pressure to pay a deposit today.
• Pay by bank transfer to a business account in the seller’s name, never by gift cards or crypto, and keep the written invoice.

If you have been caught out, report it to Police on 105 or at 105.police.govt.nz.

Paperwork to hold when you pay

• A written quote or tax invoice naming the seller, their GST number if GST registered, the container size, grade and container number.
• Known defects listed in writing.
• Delivery terms: who delivers, which truck, the date, what happens if the truck cannot reach the site, and any waiting time charges.
• Payment terms and when ownership passes to you.
• Photos of the actual container taken before it leaves the yard.

Under the Fair Trading Act, a quote or estimate can be misleading if the final cost ends up much higher than you were led to expect, so ask for the container, delivery, any crane work and GST to be shown separately.

On delivery day

Check the container before you sign for it, using the same list as above. Make sure the driver sets it level on firm supports, such as sleepers or pads under the corner castings, so the doors stay square and the base can dry. Our guide to container foundations covers the options. If the container sits within 500 m of the coast, plan early touch-ups using our rust and coastal corrosion guide.

For more on condition and price ranges, see used shipping containers. When you are ready, request quotes from suppliers who service your area through our quote form.