Quick answer: Container names describe standard equipment, but usable internal dimensions and payload vary by manufacturer and operator.
Enter the number in our carrier directory and compare the latest official scan.
What you need to know
Container names describe standard equipment, but usable internal dimensions and payload vary by manufacturer and operator. The important point is to read tracking events in context. A scan describes one moment in a longer logistics process, and the estimated delivery window is usually more useful than a single isolated status.
- 20-foot dry containers suit dense cargo.
- 40-foot units provide more volume.
- High-cube containers add about one foot of height.
- Reefer, open-top and flat-rack equipment serve specialized loads.
Recommended steps
Confirm the carrier’s equipment specification, door opening, payload and floor limits before planning a load. Start with the tracking history, then verify the order information and keep a record of every message. When another company is involved, note both the original and local tracking numbers.
| Step | What to check | Useful action |
|---|---|---|
| 1 | 20-foot dry containers suit dense cargo | Check the official tracking record |
| 2 | 40-foot units provide more volume | Keep documents and screenshots |
| 3 | High-cube containers add about one foot of height | Contact the responsible carrier or seller |
| 4 | Reefer, open-top and flat-rack equipment serve specialized loads | Escalate when the promised window passes |
When should you contact the carrier?
Contact the carrier when the promised delivery window has passed, a formal exception appears, the parcel is marked delivered at the wrong place, or the carrier asks for missing information. Routine gaps between scans are common during international line-haul transport, weekends and peak periods.
Before calling, prepare the tracking number, sender and recipient names, delivery postcode, order date and a concise description of the problem. The sender may need to start the formal investigation because the sender purchased the shipping service.
How to reduce the risk next time
Use a complete address, include a reachable telephone number when appropriate, choose a tracked service and keep the order confirmation. For valuable goods, consider signature delivery and insurance that matches the actual value. Never pay unexpected fees through a link in an unsolicited message.
Related PostIndex resources
See our tracking status explanations, browse carriers, check delivery-time guides, or find services in the country directory.
Frequently asked questions
Can tracking updates be delayed?
Yes. Scans may be uploaded in batches, and some transport stages do not generate public events.
Should I contact the carrier or seller first?
For an online purchase, contact the seller or marketplace as well as the carrier. The sender often controls the shipping contract and claim.
Is an estimated delivery date guaranteed?
Usually not unless the chosen service explicitly includes a time guarantee. Customs, weather and address problems can change the date.
Where can I track another parcel?
Open the PostIndex carrier directory and select the company handling your shipment.
Information is general and may vary by carrier, route and local law.
Common ISO container dimensions
| Type | Approx. internal length | Approx. internal width | Approx. internal height | Typical volume |
|---|---|---|---|---|
| 20 ft dry | 5.90 m | 2.35 m | 2.39 m | 33 m³ |
| 40 ft dry | 12.03 m | 2.35 m | 2.39 m | 67 m³ |
| 40 ft high cube | 12.03 m | 2.35 m | 2.69 m | 76 m³ |
| 45 ft high cube | 13.56 m | 2.35 m | 2.69 m | 86 m³ |
These are planning figures. Door openings, tare weight, maximum gross mass and payload differ by equipment owner and production series. Always use the specification shown on the container safety plate and the carrier booking confirmation.
Which type should you choose?
Use dry equipment for ordinary boxed goods, refrigerated equipment for controlled-temperature cargo, open-top containers for loads that require crane loading, and flat racks for oversized machinery. Weight distribution and securing remain essential even when the cargo fits by volume.