Complete Buying Guide: How to Choose a New 20ft Open Side Container

Why choose a new 20ft Open Side container?

The new 20ft Open Side container is a storage and transport solution that stands out for its full side opening. Unlike a standard dry container, which is accessed only through the rear doors, this model has side panels that open along the entire length of the container. This design makes loading and unloading wide, long or hard-to-handle goods much easier.

A new container has never been used for sea transport, which guarantees a structure with no deformation, optimal watertightness and a longer service life. It is delivered with ISO certification and is ready to use.

Key technical characteristics

A 20ft container complies with the standard dimensions defined by ISO 668 and ISO 1496-1. Its external dimensions are generally 6.058 m long, 2.438 m wide and 2.591 m high. The internal dimensions offer a useful volume of around 33 cubic metres, with an internal length of around 5.898 m, a width of around 2.352 m and a ceiling height of around 2.393 m. The tare weight is around 2,200 to 2,400 kg depending on the manufacturer, and the maximum payload can reach around 28,000 kg. These values may vary slightly from one manufacturer to another, but they remain within these standard ranges. The Open Side container keeps these external dimensions, making it compatible with the same lifting and transport equipment as a standard dry container.

The specific feature of the side opening

The main difference lies in the side wall. It consists of two or four panels that open outwards, usually held by sturdy hinges and locked by closing bars similar to those on the rear doors. The opening can be full or partial depending on the model. This configuration provides side access over the full height and length of the container, making it possible to load pallets, tubes, profiles, machines or vehicles without having to turn them inside. This is a major advantage for professionals handling bulky loads or wanting great freedom in arranging the interior space.

Materials and construction

The structure is made of Corten steel, also known as weathering steel. This is a low-alloy steel that develops a protective surface rust layer, giving it excellent resistance to atmospheric corrosion. This feature is particularly important for a container intended to be stored outdoors or used in marine or industrial environments. The floor is made of 28 mm marine plywood, a dense, moisture-resistant material capable of supporting heavy loads and frequent traffic. The rear doors are fitted with standard container locks, ensuring secure closure. The whole unit complies with ISO standards, guaranteeing compatibility with international handling and transport systems.

Practical uses of the 20ft Open Side container

The new 20ft Open Side container is a versatile, robust and durable solution for many professional and private uses. Here are the main areas of application.

Transport of oversized goods

Companies shipping machines, construction equipment, boats, vehicles or very long items find the Open Side a practical solution. For example, a generator, compressor or power unit can be loaded from the side with a forklift, without having to bring it in through the rear. Likewise, construction materials such as tubes, beams or large panels can be slid in from the side, reducing the risk of damage and handling time.

On-site storage

Many companies use shipping containers as temporary or permanent warehouses. The Open Side allows easier and faster access to stored goods, especially when they are stacked on pallets or arranged along the walls. Farmers, craftsmen, manufacturers and local authorities appreciate this configuration for storing bulky materials, tools, spare parts or seasonal equipment. The side opening also makes direct loading from a dock or trailer easier, without having to move goods inside the container.

Conversion into a workspace or technical room

An Open Side container can be converted into a workshop, site office, changing room, waste storage room or guard post. The side opening offers great flexibility for installing workbenches, machine tools or shelving. It also makes it possible to create an additional opening for ventilation or natural light by adding grilles or windows on the panels. Some models are even used as mobile showrooms or exhibition stands, thanks to their industrial look and modularity.

Multimodal transport

The 20ft Open Side container is designed to be stackable and handled by the same equipment as standard containers (reach stacker, crane, forklift). It can be transported by truck, train or ship. However, it is important to note that the side opening may require extra precautions during sea transport, because the panels must be properly locked and sealed to ensure watertightness and safety. In general, shipping lines accept this type of container, but it is advisable to check the conditions with the carrier.

Sector-specific use cases

In the construction sector, the Open Side container is frequently used to store construction materials on sites. Scaffolding tubes, metal profiles, formwork panels and electrical cables can be loaded and unloaded from the side, which speeds up turnover and reduces the risk of falls. Public works companies see it as a way to secure their equipment on site while having quick access to the parts they need. In addition, the side opening makes it possible to install a workbench or a small work area inside, sheltered from the weather.

In the agricultural sector, farmers use containers to store seeds, fertilisers, plant protection products or fodder. The Open Side makes it easier to load big bags, hay bales or pallets of packaged products. It also allows small agricultural machines, such as tillers or mowers, to be stored without having to manoeuvre them in a confined space. Some farmers even convert a container into a direct sales outlet, with a side opening serving as a counter.

In the events sector, Open Side containers are used as dressing rooms, pop-up bars, technical control rooms or storage spaces for stage equipment. The side opening offers great visibility and makes it easy to integrate decorative or signage elements. Festival organisers appreciate the speed of installation and the robustness of these structures.

In the retail and logistics sector, the Open Side can serve as a mini-warehouse for retailers short on space. It allows bulky goods such as furniture, household appliances or construction materials to be stored while providing direct access from outside. Delivery companies can also use it as a temporary consolidation point.

Watch points when buying

Before buying a new 20ft Open Side container, it is essential to check certain points to ensure its quality and compliance.

• Structure: A new container should have a structure with no dents, holes or signs of repair. Check that the seals on the doors and side panels are flexible and intact. Inspect the hinges and locks: they should work smoothly and hold the panels firmly. The floor should be clean, with no splinters or rotten areas.
• Certifications: Ask for ISO certification and, if possible, a CSC (Convention for Safe Containers) certificate, which confirms that the container is suitable for international sea transport. For a new container, the CSC is generally supplied with the plate attached to the structure. Also check for the identification plate and regulatory markings (serial number, weight, capacity).
• Watertightness: Make sure the container is watertight and airtight. A water test can be carried out, but a new container should be free of leaks.
• Options: The price of €5,450.00 excl. VAT may vary depending on options (painting, interior fit-out, insulation) and delivery costs. Ask for a detailed quote.

Maintenance of a Corten steel container

Maintaining a Corten steel container is relatively simple. It is advisable to clean the surface regularly with a water jet to remove salt, dust or pollutant deposits, especially in coastal areas. Avoid abrasive products that could scratch the protective rust layer. If paint chips appear, they can be touched up with suitable paint to prevent corrosion. Periodically check the condition of seals and locks; a worn seal can let water in. Grease the hinges and locking mechanisms once or twice a year. For prolonged outdoor use, you may consider a topcoat on exposed parts, but Corten steel is designed to withstand the elements without special treatment.

Regulations and transport in France

With regard to transport regulations in France, a shipping container is considered an intermodal transport unit (ITU). Its road transport is subject to the size and weight rules in force. A 20ft container can be transported on a container truck without special authorisation if the total gross vehicle weight does not exceed the legal limits (40 tonnes for a standard road train). However, if the container is loaded beyond the limits, exceptional transport permits may be required. For sea transport, the container must be CSC-certified and comply with the SOLAS convention rules on verified gross mass. In France, using a container as a storage room or office may require planning permission if the installation is permanent and exceeds a certain duration. It is advisable to check with the town hall or the DDT (Direction Départementale des Territoires) before any permanent installation.

Anchoring and stability

An empty container can be moved by strong winds. It is therefore advisable to secure it to the ground, especially in exposed regions. Anchoring kits are available commercially. In addition, if you stack containers, make sure the corner castings are properly locked with twist-locks. Do not exceed the stacking limits recommended by the manufacturer, generally three to four containers high for empty containers, and fewer if the containers are loaded.

Security

An Open Side container offers protection against theft and intrusion, provided the locks are in good condition and the container is fitted with a padlock or additional locking system. The doors and side panels can be secured with anti-burglary bars. For sensitive use, an alarm or video surveillance system can be installed.

Comparison with other container types

Let us now compare the 20ft Open Side container with other container types. The standard 20ft dry container is the most common and the cheapest, but it only has a rear opening. It is suitable for goods that can be loaded on pallets or by hand. The Open Top container, meanwhile, has a sliding or removable roof, allowing goods to be loaded from above using a crane. It is used for heavy or bulky loads that cannot pass through the doors. The Flat Rack container has no side walls or roof, allowing very wide or very tall loads to be loaded, but it offers no protection against the weather. The Open Side container sits between these two extremes: it offers full protection like a dry container, but with side access that makes loading wide loads easier. It is more versatile than the standard dry container, but less open than the Flat Rack.

In terms of size, the 20ft is the most common format for heavy and compact loads. The 40ft offers double the volume, but it is less suited to very heavy loads because its tare weight is higher and its structure is more flexible. The 20ft Open Side is therefore a good compromise for companies that need side access without sacrificing robustness. There are also 40ft Open Side containers, but they are less common and more expensive.

Another point to consider is height. The standard container is 2.591 m high externally, in line with the ISO standard. There are High Cube (HC) versions that measure around 2.896 m, offering around 15% extra internal volume. For an Open Side, the High Cube version is interesting if you need to store tall loads, but it can cause transport problems because it exceeds the standard height of some tunnels or bridges. It is therefore important to check the constraints of your site and your route.

Insulation and fit-out

A new Open Side container can be insulated with rock wool or polyurethane foam panels, then lined with plywood or panelling. The side opening can be kept or replaced with a glazed door or a metal roller shutter. For office use, a partition can be installed to separate a work area from a storage area. Electricity can be run inside, with sockets and suitable lighting. However, these fit-outs must comply with the electrical and fire safety standards in force. It is advisable to call in a professional for these conversions.

Conclusion

The new 20ft Open Side container is versatile, robust and durable equipment that meets many needs. Its full side opening makes handling and access easier, while its Corten steel construction and marine plywood floor guarantee a long service life. Compliant with ISO standards, it is ready to use and can be used for transport, storage or fit-out. Before buying, check the watch points and make sure this type of container matches your use. For any questions, the Transport Hosni Conteneur team is at your disposal.