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 stands out from standard dry containers with its almost full side opening. While a classic container only opens at the rear, this model has two doors along the entire long side, plus rear double doors. This configuration radically changes loading and unloading for wide, long or oversized goods.

Made of Corten steel with a 28 mm marine plywood floor, it combines strength, weathertightness and durability. New, it has never been used for sea transport and comes with ISO and CSC certification. Whether you are a construction professional, an industrial operator, an event organizer or a private individual, this container offers exceptional accessibility and useful modularity for many projects.

Key technical specifications

Dimensions and usable volume

A standard 20ft container measures about 6.06 m long, 2.44 m wide and 2.59 m high externally. Inside, usable volume is about 33 m³, with a length of 5.90 m, a width of 2.35 m and a height of 2.39 m. The side opening, specific to the Open Side, provides a usable passage of about 2.34 m wide and 2.28 m high. These dimensions allow pallets, machines or profiles to be loaded without the constraints of rear door posts.

Weight and payload

Tare weight is generally between 2,200 and 2,400 kg. Maximum payload can reach about 28,000 kg, depending on the manufacturer's exact specifications. These values matter for transport: the total weight of the container and its contents must not exceed vehicle and road regulations.

Materials and construction

Corten steel, or weathering steel, contains alloying elements such as copper, chromium and nickel. It forms a protective oxide layer on the surface that slows corrosion. Corrugated walls, steel frame and structural reinforcements provide high mechanical strength, suitable for transport and lifting. The 28 mm marine plywood floor, treated against moisture, supports heavy distributed loads.

Certifications and safety

A new container must come with its CSC plate (Convention for Safe Containers), affixed to the rear door, certifying compliance with international safety standards. It also meets ISO 668 (dimensions) and ISO 1496 (technical specifications). Check that the plate is valid and up to date at purchase.

Advantages of a new Open Side container

Choosing a new container has several benefits: no prior repairs, optimal weathertightness thanks to new seals, longer service life and better resale value. The new Open Side container is especially sought after for fit-out projects because it avoids rear-access constraints. The side opening makes it easier to convert into storage space, a mobile workshop, a site office or a technical room.

In addition, the Open Side design allows goods to be loaded across the full height and depth without being hindered by door posts. This reduces handling time and the risk of damage. For professionals, this is a significant productivity gain.

How to choose your new 20ft Open Side container: key criteria

Intended use: storage, transport or fit-out

First define your main need. For static storage, the Open Side offers convenient access for storing and removing bulky items. For transport, it allows oversized pallets to be loaded without going through the rear. For a fit-out, it provides a modular base with a side opening that can become a large window or an additional entrance.

Frequency and type of handling

If you frequently handle wide loads, the side opening is a major advantage. Conversely, if your goods pass easily through the rear, a standard dry container may be enough and cost less. Assess the time saved and any handling costs avoided.

Space and access constraints

A 20ft container is more manageable than a 40ft, especially on a restricted site. Check that truck and crane access is possible. The side opening requires clear space on the side to open the doors.

Budget and options

The price of a new Open Side container is higher than a standard dry due to its specific design. Include options in your budget such as insulation, electrical installation, ventilation or additional locks. Compare offers and request a detailed quote.

Comparison with other container types

The standard 20ft dry container is the most common and least expensive, but its single rear access limits loading of wide loads. The 40ft offers double the volume (about 67 m³) but requires a longer vehicle and more spacious site. The 40ft High Cube gains 30 cm of internal height, useful for tall volumes, but its price and footprint are higher. The Open Top, without a rigid roof, is suited to very tall loads but is less weathertight. The Flat Rack, without side walls or roof, suits oversized loads but offers no protection from the weather. The Reefer is designed for temperature-controlled transport, unnecessary for simple storage.

The Open Side container positions itself as a compromise: it offers the weathertightness and security of a dry, with side access that facilitates handling. It is more expensive than a standard dry, but can save valuable time and avoid extra handling costs. For static use, the 20ft is often preferred to the 40ft because it is easier to move, place and integrate into a restricted space.

Sector-specific use cases for the 20ft Open Side container

Construction and building

On a site, it serves as a store for tools, materials and sensitive equipment. The side opening allows pallets of bricks, tubes, scaffolding or prefabricated elements to be loaded without passing them through the rear. It can also become a site office or technical room.

Events

Used as a control room, dressing room or storage space for stage equipment, side access makes it easier to remove equipment quickly. It can be moved and reassigned as needed.

Industry

Temporary storage area for bulky parts or technical room for generators, compressors or pumps. Its strength and weathertightness protect equipment.

Agriculture

Safe shelter for crops, seeds or small equipment, provided suitable ventilation is included to prevent condensation.

Private individuals

Extra storage solution for garden tools, bicycles, motorcycles or bulky items, while freeing up garage space. The side opening facilitates access.

Conversion into living space or office

The side opening allows a large window or an additional entrance door to be created, increasing comfort and light. After insulation and lining, it can accommodate partitions, electrical and plumbing systems.

Points to check when buying a new container

Check that the container comes with a valid, up-to-date CSC plate. Make sure the seals are in good condition and the locking mechanisms work properly. A new container should have uniform paint, no rust marks and clean welds. Inspect the floor: it must be dry, with no deformation or moisture marks. Check the side opening: the doors must open and close without forcing, and the locks must engage correctly.

If you plan to place the container on the ground, set it on supports (concrete blocks, beams) to avoid direct contact with ground moisture and promote ventilation under the floor. For use in a flood zone, raise it sufficiently.

Transport and delivery of a 20ft container

Transporting a 20ft container in France is subject to regulations on vehicle weights and dimensions. A 20ft container can be transported on a suitable container truck, generally a rigid truck or semi-trailer. The gross combined weight (GCW) must not exceed 44 tonnes for a standard road train, and the truck's payload must be sufficient for the container and its contents. The overall width of 2.44 m complies with limits allowed without an exceptional convoy (2.55 m).

For lifting, a crane truck or mobile crane is required; the container must be lifted by its four corner castings using suitable slings or spreaders. Safety instructions must be followed, and qualified professionals (CACES lifting equipment) must be used. On delivery, check that the ground is stable and that access is possible for the truck and crane. The container can be placed on the ground or on a support.

Maintenance of a Corten steel container

Preventive maintenance

Regularly inspect walls, roof and floor for impacts, deformation or areas of emerging rust. Check the condition of seals twice a year: they must remain flexible, without cracks or tears. Lubricate locking mechanisms with a suitable grease resistant to water and temperature changes. A lock that forces or jams may indicate incorrect alignment or wear; address it early.

Corrective maintenance

A deep scratch reaching bare metal must be treated quickly: clean, degrease, apply a rust-inhibiting primer then a topcoat in a close color. If rust has set in, mechanical or chemical brushing is necessary before touching up. For major impacts, consult a professional: structural deformation can affect weathertightness and strength. Near the sea, salt air accelerates corrosion; more frequent rinsing with fresh water is advisable.

Applicable regulations and standards

Road transport of containers is governed by the Highway Code and orders relating to weights and dimensions. A 20ft container can be transported on a vehicle whose width does not exceed 2.55 m, which is the case. The length of the combination must not exceed 16.50 m for a standard articulated vehicle, but exemptions exist for exceptional convoys. The vehicle's gross vehicle weight (GVW) and gross combined weight (GCW) must be respected. Transport of dangerous goods is subject to ADR regulations, but this concerns the contents, not the container itself. Finally, lifting and handling must be carried out by companies with the necessary certifications.

New or used container: which choice for an Open Side?

The used market offers Open Side containers that have already been used, at lower prices. However, a used container may show corrosion, worn seals, deformation or previous repairs. For intensive professional use or a fit-out project, new guarantees perfect weathertightness and a sound structure. The extra cost is often offset by a longer service life and less maintenance. If the budget is tight and use is not demanding, used may be suitable, but a thorough inspection is essential. In all cases, check the CSC plate and the condition of locks and seals.

Options and accessories to customize your container

A new 20ft Open Side container can be fitted with many options to adapt it to your use. Thermal insulation, for example, is recommended for conversion into an office or living space: it limits condensation and improves comfort. Electrical installation (lighting, sockets, panel) can be integrated at order or done later. Ventilation, natural or mechanical, is useful for storing moisture-sensitive products. Additional locks or a reinforced locking system increase security. Finally, racks, shelves or movable partitions optimize interior space. Discuss these options with your supplier for a tailored quote.

Conclusion

The new 20ft Open Side container is a durable and scalable solution for your storage, transport and fit-out needs. Its full side opening offers exceptional accessibility, while its Corten steel construction and marine plywood floor guarantee strength and durability. By following the selection criteria in this guide, you can choose the container suited to your use. Remember to check certifications, plan transport and provide regular maintenance to extend its service life.