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Sea Cell Containers

Royal Wolf’s sea cell containers are manufactured exclusively for use on cargo ships. These specialised containers are wide enough to hold two pallets side-by-side, adding up to ten pallets total on the floor of our 20ft sea cell container model. Our longer 40ft model can accommodate additional pallets, depending on your cargo transport needs. Usually, containers with these "pallet wide" dimensions do not fit on standard cell guides on international cargo ships. But despite their two-pallet width, our sea cells fit perfectly on cell-guide container ships. This is possible thanks to the offset corrugation on each side of our containers. In addition to this unique design feature, these specialised containers have standard corner castings, so they can be lifted and carried by any type of container loading equipment.

Due to this unique construction, our sea containers are able to hold more pallet-packed cargo than standard shipping containers. Specifically, our 20ft units have a maximum payload capacity of 31,050 kilograms, while our 40ft models can hold cargo weighing up to 29,840 kilograms, but with a much larger cubic volume (79.1 cubic metres versus 37.4 cubic metres on the 20ft units).

In addition, both our 20ft and 40ft sea cell containers are flexible enough to work on both cellular and non-cellular cargo ships. This versatility makes it possible for your container to fit on any type of intermodal transportation without any modifications. With a Royal Wolf sea cell, you won’t have to worry about the specific requirements of a given shipper, because your sea cell is, in practice, a one-size fits all container.

Royal Wolf sea cell containers allow you to maximise the amount of cargo you can ship, without having to pay for a larger container. Because of this, sea containers offer a great value to anyone in the cargo industry who utilises ships to carry their goods. While we do also offer similar containers without the cell-friendly design to suit your more-basic overland shipping and storage needs, when it comes to moving cargo over the oceans, our sea cell containers simply can’t be beat.

For more information request a quote below, or call us on 0800 266 824.

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  20ft 40ft
External Length (mm) 6058 12192
External Width (mm) 2484 2484
External Height (mm) 2896 2896
Internal Length (mm) 5902 12100
Internal Width (mm) 2426 2426
Internal Height (mm) 2694 2694
Max Gross (kg) 34000 34000
Tare (kg) 2950 4160
Max Payload (kg) 31050 29840
Cubic Capacity (m3) 37.4 79.1

Delivery Instructions


The side loader truck delivers the container by picking it up from the trucks tray at each end of the unit and lowering it onto the site directly next to the trucks’ tray. This method is ideal for delivery of containers that need to fit into constricted spaces. It is important to consider which way the container should be loaded onto the truck as it can only be unloaded from the right hand (drivers’) side.

  • 6m Side Loader Clearance Requirements:
  • Height – 4.5m (15ft)
  • Width – 6m (20ft)
  • Length – 10m (33ft)
  • 12m Side Loader Clearance Requirements:
  • Height – 4.5m (15ft)
  • Width – 6m (20ft)
  • Length – 16m (53ft)


This delivery method is used when neither a tilt tray or side loader truck can access the site. Crane truck delivery allows for containers to be delivered over obstructions such as fences.

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