40ft Tunnel / Double Door Containers Felixstowe

What is a 40ft tunnel container?

A tunnel container is a shipping container with cargo doors at both short ends. Open both sets, and you have a clear route through the container, which is where the tunnel name comes from. A standard 40ft container has cargo doors at one end only.

The second doorway is useful when goods stored near the far end would otherwise be difficult to reach. It can also support through-loading, stock rotation or a layout where separate working areas use opposite ends of the same container.

That extra access only helps if the site allows you to use it. If one end will sit permanently against a wall, fence or building, a 40ft standard shipping container may be the simpler choice.

40ft tunnel container dimensions

Published specifications vary slightly between manufacturers and individual designs, so use dimensions for planning rather than assuming every 40ft tunnel container is identical. If machinery, pallets or other cargo will be a close fit, confirm the measurements and door openings of the actual unit before ordering.

Another published 40ft tunnel specification gives an internal length of about 12.00m and an internal height of about 2.39m. This variation is why the actual container should be checked where internal clearance or the door aperture is critical.

When doors at both ends are useful

Double-ended access works particularly well where goods move regularly. Instead of unloading items from the front to reach stock at the back, you can approach the nearest end. This can help with palletised goods, machinery, tools and equipment that need frequent retrieval.

Think about the storage layout before choosing the container. Frequently used stock can be positioned close to either doorway, while less frequently handled goods can occupy the centre. If forklifts or pallet trucks will be used, both working areas need suitable ground and enough room to approach the doors.

A tunnel layout can also support separation within the container. Partitions are possible in some applications, but any alteration should be agreed before work starts. Modifications to hired equipment may be restricted, and a converted unit should be assessed against its intended future use.

40ft high cube tunnel containers

A 40ft high cube tunnel keeps the double doors at both ends but provides about 1ft of additional external height compared with the standard-height version. The extra internal and door height can be useful for taller machinery, bulky equipment, stacked goods or storage arrangements that make effective use of vertical space.

Do not choose high cube simply because it is larger. If the goods fit comfortably inside a standard-height tunnel and the extra height will remain unused, the standard version may be adequate. If height is the main requirement but access from the second end is unnecessary, compare the tunnel design with other options in the container equipment range.

Buying or hiring a 40ft double door container

Buying can suit a longer-term requirement where you want to retain the container and control how it is used in future. Inspect both door assemblies rather than concentrating only on the exterior panels. Hinges, locking bars, seals, door frames and lockboxes at each end all affect day-to-day use.

One-trip normally describes a container that has completed a limited initial shipping journey. It should not be taken to mean unused, and minor handling marks can occur during that first movement. Used containers can vary more widely in age, repairs and appearance, so ask for condition information relevant to the intended job.

Hiring can be more practical for temporary storage or a project with a defined end date. Confirm the hire period, permitted use, damage responsibility and collection arrangements. Keep the collection route clear throughout the hire, especially where both ends of the container are being used as working areas.

Condition, locks and storage protection

Double doors mean two sets of seals, hinges and locking gear to check. A wind and watertight description relates to resistance to ordinary weather ingress when the container is in suitable condition. It does not mean airtight, and it should not be treated as a guarantee that every container is suitable for moisture-sensitive goods.

Security also needs attention at both ends. Some tunnel specifications include lockboxes at each end, but equipment varies. Check what is fitted to the actual unit and choose suitable locks for the site and contents rather than assuming both door sets have identical security hardware.

Condensation can still occur inside a steel container as temperature and moisture levels change. Ventilation, packaging, lining, insulation or condensation-control measures may help according to the goods and use. For background on weather protection, see whether shipping containers are waterproof.

Prepare both door areas for everyday use.

A 40ft tunnel needs more usable space than its steel footprint suggests. Each pair of cargo doors needs room to swing open, followed by enough working space to move the goods. Mark both door positions on the proposed site before committing to the container.

Decide which entrance will carry most of the traffic. If a forklift, pallet truck or other handling equipment regularly approaches one end, keep that route clear and make sure the surface is appropriate. The second entrance can still be kept available for stock access without becoming the main loading area.

Future changes to the site matter too. Fences, parked vehicles, stored materials or new works can turn an accessible second doorway into an unusable one, removing much of the reason for choosing a tunnel container.

HIAB delivery and placement in Felixstowe

Where HIAB delivery is used, a crane mounted on the delivery vehicle lifts the container into position. A container fitting into the final space does not mean it can necessarily be placed there. The vehicle also needs a suitable route and working position, and the crane must have sufficient reach for the proposed drop point.

Measure the narrowest gate and consider turning room, ground condition and the space available for the delivery vehicle. Check overhead for cables, branches, lighting, roofs and other obstructions. Tell the supplier where the vehicle can stand and which way each set of doors should face before delivery arrangements are confirmed.

The container should stand on firm, reasonably level support suited to the site and expected load. Uneven settlement can distort the container and make either set of doors harder to operate. Drainage should keep standing water away from both entrances.

The guide to proper shipping container placement covers further checks to make before choosing the final position.

Planning considerations in Felixstowe

Planning requirements can depend on the intended use, how long the container will remain in place, the status and location of the site, neighbouring property, listed status, conservation areas, a change of use and any associated works or modifications.

There is no single rule that makes planning permission always necessary or always unnecessary for a tunnel container. Check the current requirements with the relevant local council for the proposed Felixstowe site before committing to a longer-term placement or modified use.

Choose the right 40ft tunnel option.

Start with access. If reaching goods from either end will make loading or stock handling easier, the tunnel design has a clear purpose. If the second entrance is likely to remain blocked or unused, the standard container may be the better fit.

Then decide whether standard height gives enough clearance. Choose high cube where the additional internal and door height provides a practical benefit to the load, stacking arrangement or handling equipment.

When you request a container quote, include whether you need standard or high cube, sale or hire, what will be stored, how the container will be loaded and how much usable space is available at both ends.