Why We Abandoned Welding for This New Shipping Container Framing System
Shipping container modifications often involve welding steel directly to the container. While welding has its place, it can also make a project more permanent and limit how the interior can be configured later.
That is why we developed the Future Proof Framing System, a modular interior framing method designed to combine the flexibility of steel stud framing with the versatility of strut channel.
A Modular Shipping Container Framing System
The Future Proof Framing System combines two common approaches to container modification: Steel Stud Brackets and modular strut channel framing.
Instead of simply framing sections of the container, the system can be installed at every corrugation. Interior wall panels can then be attached directly to the framing, while strut channel can be installed wherever it is needed.
This creates a clean, all-metal interior while providing mounting points for lighting, electrical, equipment, and other components.
Every framing member, wall panel, strut channel component, and electrical covering was designed to work together. The goal is to create a system that can be configured now and adapted later as the customer's needs change.
One of the biggest advantages is simplifying the planning process. Rather than having to know exactly what will be installed inside the container before framing begins, the Future Proof Framing System provides a standardized foundation that can accommodate future modifications.
Installing the Interior Wall Panels
The wall panels are attached with rivets, but the installation process requires some planning.
The panels need to be installed systematically, starting in the upper left corner and working down before moving across the wall. Installing rivets randomly can cause panels to pop out in certain areas.
During the first installation, some panels had to be removed and reinstalled after the team learned more about hole sizing, adhesive, and installation sequence. While the process required some refinement, the finished result creates a clean, consistent interior.
Building a Fire-Rated Interior
This 40-foot container is divided into two compartments by a fire-rated partition wall.
The partition uses steel stud framing with fire-rated plywood on both sides, followed by the same metal interior paneling used throughout the rest of the container. A fire-rated door with an expandable three-piece frame provides access between the two compartments.
The expandable frame is particularly useful because it can accommodate different wall thicknesses.
The large side doors also received custom Door Flashing Kits to help insulate and finish the openings. Because of the fire-rated design, fire-rated plywood was installed behind the interior metal covering.
A Portable Foundation
The container sits on a custom portable oil field skid connected using twist locks.
The skid can be designed as either a weld-on or removable system, while recessed areas around the corner castings allow the container's bottom channel to sit securely across the W8 beams.
The skid also incorporates rectangular tubing that strengthens the structure while creating forklift access. This allows the entire unit to be moved without requiring the container to be permanently installed on a foundation.
Another benefit is lowering the container's center of gravity, which becomes especially useful when adding solar panels to the roof and sides of the container.
Designing for Long-Term Flexibility
Another approach used in previous container modifications is replacing the original container floor with concrete.
Removing the plywood floor and pouring concrete adds thermal mass to the structure, essentially turning the concrete into a thermal battery. A steel runner can also act as a grade beam along the outside of the container.
Combined with properly designed frost protection, such as screw piles, this creates a more permanent foundation system for a modified container.
The Future Proof Framing System takes the same general philosophy and applies it to the interior: build a strong foundation that gives you flexibility instead of locking the project into one configuration.
Whether you're installing electrical systems, lighting, equipment, wall coverings, or future upgrades, a modular framing approach can make a shipping container easier to modify as its purpose evolves.