How Conexwest Turned Four Shipping Containers Into One Open Workspace
Wall-to-Wall Container Complex
A shipping container is naturally long and narrow, but that does not mean the finished building has to feel like a corridor.
For this project, a client needed a large, open-plan workspace without committing to the cost and extended schedule of conventional construction. Conexwest used four 40ft high cube shipping containers arranged side by side and transformed them into one continuous 1,280-square-foot interior.
The result challenged the usual idea of what a container building can look like. Instead of four separate bays, the finished structure functioned as one wide, connected space with storefront glazing, continuous flooring, climate control, electrical systems, and emergency exits.
Turning Four Containers Into One Open Space
The project began with four 40ft high cube containers.
High cube units were selected because their added height helped preserve comfortable interior clearance after structural reinforcement, insulation, lighting, HVAC, and finished surfaces were installed.
The containers were placed side by side, but simply positioning them next to one another would not create the open layout the client needed. The shared sidewalls had to be removed so people could move freely across the full width of the building.
Once connected, the four containers created approximately 1,280 square feet of open floor area.
Why Sidewall Removal Required Engineering
Container sidewalls are part of the structure. They help the unit resist movement and lateral forces during transport and use.
Removing them is not the same as cutting a standard interior partition. Once the walls were taken out, the lost structural support had to be replaced with engineered steel framing.
Before fabrication began, the project went through a structural review. The new support system had to account for the container roofs, floors, remaining walls, connection points, and the way the four units would work together after assembly.
Conexwest worked with a structural engineering partner to develop stamped drawings for the build and permitting process.
The Conexwest Structural Solution
The shared walls were removed and replaced with HSS steel header beams spanning the openings.
Steel columns were installed at the former wall locations and secured with welded base plates. Together, the headers and columns created a reinforced frame that transferred loads through the roof and floor structure to the intact portions of the containers.
The fabrication team also reinforced the connection points where the individual units would meet.
Precision mattered throughout the process. If the openings, columns, or floor elevations did not align correctly, the four containers would not connect into one clean interior on-site.
Creating One Continuous Floor
The site itself created another challenge.
Because the ground was uneven, the four containers did not naturally sit at one exact elevation. Even a small height difference between units would have created visible transitions and uneven flooring inside the finished building.
Conexwest fabricated custom leveling plates for the corner castings so each container could be adjusted to a common finished floor height.
Once aligned, continuous luxury vinyl plank flooring was installed across all four container bays. This helped visually erase the original container boundaries and made the interior feel like one room.
A Finished Commercial Interior
The structural work created the open shell, but the client also needed a complete and comfortable workspace.
Spray foam insulation was applied to the roof and the remaining exterior walls to improve thermal performance and reduce condensation against the steel shell.
A single electrical panel served the full complex, allowing lighting, outlets, equipment, and other systems to operate as one building rather than four independent units.
The HVAC system used four indoor mini-split heads connected to one outdoor unit. This zoned approach helped distribute heating and cooling across the larger floor area.
Across the front elevation, Conexwest installed an aluminum storefront glass system. The glazing brought natural light into the space and gave the exterior a more conventional commercial appearance.
Emergency exit doors were installed at both ends of the complex to support safe circulation and egress.
Project Specifications
| Containers | Four 40ft high cube shipping containers |
|---|---|
| Configuration | Side-by-side wall-to-wall assembly |
| Total floor area | Approximately 1,280 square feet |
| Structural work | Engineered removal of shared sidewalls |
| Reinforcement | HSS steel headers, steel columns, welded base plates, and structural framing |
| Insulation | Spray foam on the roof and remaining exterior walls |
| Flooring | Continuous luxury vinyl plank flooring |
| Electrical | One unified panel serving the entire complex |
| HVAC | Zoned mini-split system with four indoor heads |
| Front elevation | Aluminum storefront glass system |
| Emergency access | Exit doors at both ends |
| Site adjustment | Custom leveling plates at the container corner castings |
| Engineering | Stamped structural drawings and permit support |
| Timeline | Five weeks |
More Than Four Containers Placed Together
What made this project stand out was the way the separate units disappeared into the finished design.
The steel framing replaced the support lost during wall removal. Continuous flooring connected the interior visually. One electrical system and one coordinated HVAC layout served the full space. Storefront glazing opened the front of the building and made the structure feel less industrial.
The completed complex no longer functioned as four individual containers. It operated as one large commercial workspace.
The Finished Result
The project created approximately 1,280 square feet of open interior space within a five-week design, fabrication, and delivery schedule.
The final building included:
- A wide, uninterrupted floor plan
- Continuous finished flooring
- Integrated electrical service
- Zoned climate control
- Storefront glass across the front
- Emergency exits at both ends
- Engineered structural reinforcement
- A layout comparable to a conventional modular workspace
The wall-to-wall configuration demonstrated that container buildings do not have to remain narrow or feel temporary. With the right engineering and fabrication, several units can be joined to create a much larger and more traditional interior.
Why Containers Worked for This Project
Shipping containers offered a repeatable structural starting point that could be modified off-site and assembled into a larger building.
The side-by-side layout allowed the client to gain more width without relying on one oversized custom structure. Individual containers could be fabricated, reinforced, insulated, and prepared before final installation.
The system also provided flexibility. Similar configurations can be adjusted by changing the number of containers, the placement of interior partitions, the amount of glazing, the location of doors, or the utility layout.
The container shell did not replace the need for structural engineering, site preparation, permitting, or utility coordination. It provided a modular framework that Conexwest could adapt around the client’s goals.
Similar Applications
Wall-to-wall container assemblies can work for projects that need more open space than one container can provide, including:
- Commercial offices
- Classrooms
- Training centers
- Retail spaces
- Community buildings
- Event facilities
- Industrial work areas
- Laboratories
- Operations centers
- Multi-room field offices
The same approach can also support phased projects. Additional units may be incorporated into a future expansion when the site, engineering, and original design allow it.
Building Beyond the Standard Container Footprint
This project shows that the dimensions of one shipping container do not have to define the finished building.
By combining four high cube units, removing the shared sidewalls, and replacing them with engineered steel framing, Conexwest created a wide, open interior with the scale and function of a conventional commercial space.
The result was a custom building delivered around the client’s need for space, speed, and flexibility—not around the limits of a single container.
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