Conjoined Shipping Containers
Flexible and Seamless Design Possibilities
By cutting out adjoining walls and welding units together, we create seamless interior environments using 2, 3, or even up to 8 containers in a row. This approach opens up endless design possibilities while maintaining the structural integrity and mobility of standard ISO containers.
Fast Deployment for Modern Needs
Our conjoined container solutions are ideal for businesses that need fast, deployable space without permanent construction. They're perfect for:
- Remote job sites
- Growing operations
- Pop-up environments
These spaces offer durability, mobility, and convenience.
Fully Customizable and Modular
All configurations can be customized with:
- Insulation and climate control
- Electrical systems and plumbing
- Windows and doors
Whatever your project requires, we can build it to spec.
Let us help you build big—faster, smarter, and with total customization.
Midstate Containers' modular builds are scalable, relocatable, and engineered to meet your specific needs. Whether you're creating a large open-plan workspace or a compact industrial unit, conjoined containers are a smart, affordable alternative to brick-and-mortar expansion.
DROP US A LINE
Conjoined shipping containers are a smart and scalable way to create larger, modular structures using standard steel units. Whether you're expanding a mobile office, building out an industrial storage solution, or designing a flexible retail space, connecting two or more storage units together opens up possibilities for space, structure, and functionality.
Looking for conjoined shipping containers for sale or on order? Midstate is your most trusted partner with our wide range of units, services, and years in the market.
Why Join Shipping Containers?
More Space
By connecting shipping containers, you can dramatically increase usable square footage. Whether it’s a 20-ft or 45-ft structure, a conjoined setup eliminates walls and opens the interior to accommodate workshops, lounges, bunk rooms, or industrial workspaces.
Unique Structure
Conjoined storage units make it possible to create layouts that traditional units can't accommodate. Need a wide-open floor plan, an L-shaped facility, or a T-style expansion? With the right tools, you can design complex yet stable conjoined shipping containers.
Types of Conjoined Shipping Containers
We offer a variety of sizes and configurations to support all types of unit conversions. Here’s a quick breakdown of the most common approaches and types of joining shipping containers:
20ft Conjoined Shipping Container
Smaller but versatile, 20-foot conjoined units are ideal for personal workspaces, compact storage, or vendor booths. They offer fast installation and are easy to transport or repurpose.
40ft Conjoined Shipping Container
The most popular size for commercial use, 40-foot conjoined units offer ample room for offices, clinics, command centers, or even temporary housing. Their length and build make them easy to modify and connect for long-term structural use.
45ft Conjoined Shipping Container
Need additional space without sacrificing durability? The 45-foot unit is ideal for complex conversions or full-scale mobile facilities. Its extra length supports interior division, furniture, or HVAC systems while maintaining structural integrity.
Standard Features for Conjoined Shipping Containers
Each setup includes essential features designed for long-term functionality and performance:
- Seamless internal transition between units
- Steel frames with reinforced weld points
- Openings cut to spec for doors and access points
- Pre-treated exterior for corrosion resistance
- Roof and floor alignment for smooth walkthroughs
- Forklift pockets and crane-ready lifting points
No matter your need, our designs maintain the strength and security of each unit while extending its usability.
Option Add-on Modifications
In addition to structural integration, we offer a variety of customizable modifications to optimize your projects for comfort, performance, and style.
Available modifications also include:
- Air Conditioning – Maintain climate control for all seasons
- Flooring – Commercial-grade surfaces for hygiene or aesthetics
- Lock Boxes – Protect gear and valuables with secure lock setups
- Man Doors – Easy-access personnel doors with code compliance
- Paint – Custom finishes for branding or protection
- Partition Wall – Divide spaces without losing layout flexibility
- Roll-Up Doors – Add vehicle or equipment access with ease
- Skylights – Natural light and improved energy efficiency
- Vents – Support air exchange and reduce moisture
Find out the Key Steps of Joining Shipping Containers Together with Midstate Containers
Wondering how to join two shipping containers together? At Midstate we make the process of joining shipping containers simple and code-compliant, so you can focus on functionality and form. Our team handles engineering, cutting, welding, and delivery, based on your specs and timeline.
How to Join Two Shipping Containers Together
Welding
Welding is the most secure and permanent method for connecting two shipping containers. By fusing frames at specific points, we ensure structural continuity and alignment across walls, floors, and ceilings.
Plates and Caulk
For semi-permanent builds or temporary deployments, steel plates and high-grade caulk can help join units while maintaining weather resistance and strength without full fusion.
Bolting
Bolting provides flexibility for clients who may want to disassemble units later. Using pre-cut join plates and frame brackets, bolted connections offer both durability and reversibility.
Joining Kits
Shipping container joining kits are pre-manufactured assemblies that streamline the process of connecting multiple units. Ideal for quick installations, these kits come with rails, bolts, and instructions suited for both commercial and personal projects.
The Benefits of Joining Shipping Containers
- Extended space for multiple uses (offices, living, retail)
- Modular design for expansion or relocation
- Reduced cost compared to conventional buildings
- Quicker installation and delivery
- Compatible with dozens of modifications
- Eco-friendly reuse of existing materials
How to Ensure the Joined Containers Are Safe
Safety starts with structural alignment, frame reinforcement, and seal integrity.
Our builds include:
- Reinforced weld points at stress areas
- Internal bracing for multi-container walls
- Sealed floor seams and overhead insulation
- Load-rated lifting points and access ramps
- Pre-inspections before delivery
We ensure all joined units meet California codes for wind, load, and seismic safety.
How to Get a Conjoined Shipping Container from Midstate
- Fill out our quote request form
- Tell us your vision, including size, layout, and modification needs
- Get a quote and timeline
- Approve your design, and we’ll begin to connect shipping containers for your project
- Delivery and installation
Why Choose Midstate Containers?
- Built to California code and engineered for performance
- Decades of experience in structural storage unit conversion
- Fast turnaround and local support
- Flexible design options with full customization
- Trusted by businesses, farms, governments, and construction firms