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700mm Expandable House
Engineered for Maximum Savings: Ultra-Slim 700mm Folding Width with 6 Units per 40ft HQ Container.
Standard units start from $4,000. Contact us for bulk order discounts.
What is a 700mm Expandable House?
The Ultra-Slim Innovation for Instant High-Density Housing
The 700mm Expandable House is a precision-engineered modular building designed specifically to minimize international shipping costs. It arrives as a high-density "slim" module and expands on both sides to create a functional living or working space.
- 700mm Ultra-Slim Profile: The world’s leading space-saving folding technology, reducing the transport width to just 70cm.
- 27.5m² Living Space: Despite its thin transport size, it expands to a generous 5.95m x 4.8m area, ideal for 2–4 occupants.
- 100% Factory Integrated: All structural hinges, floor systems, and wall panels are pre-installed. It is the fastest way to ship mass housing globally.
Why Choose the 700mm Ultra-Slim Model?
Triple the Loading Capacity, Zero Compromise on Durability
1. Industry-Leading Logistics (6 Sets / 40HQ)
Our 700mm folding technology allows you to transport 6 units in the space typically occupied by only 2 standard expandable houses. This translates to a 66% reduction in ocean freight costs per unit.
2. Rapid "10-Minute" Expansion
Efficiency meets simplicity. A small crew and a crane can unfold the slim module into a full-sized house in just 10–15 minutes. No specialized welding or complex tools are required on-site.
3. Lightweight & Mobile (1.6 Tons)
With a net weight of only 1.6 tons, this is our most mobile expandable unit. It is exceptionally easy to handle with standard site equipment, making it the premier choice for remote sites with limited infrastructure.
4. 100% Relocatable and Reusable
Protect your investment. Our "Knock-down" design allows the house to be dismantled and reassembled in different locations multiple times without losing structural integrity—a sustainable asset for mobile projects.
5. Custom Solutions for Different Projects
We provide customized designs based on project requirements, including layout planning, material options, and functional configurations, suitable for construction sites, modular offices, and temporary housing worldwide.
Expandable House Specifications
Technical Specifications
External Dimensions
Expanded: 5950 x 4800 x 2480 mm.
Inner: 5460 x 4640 x 2240 mm.
Folded Size
Ultra-slim profile of 5900 x 700 x 2480 mm for high-density shipping.
Structural System
- Main Frame: Galvanized steel columns and beams
- Steel Grade: Q235 / Q355 optional
- Connection: High-strength bolt connection system
- Structure Feature: Fully detachable and reusable
👉 This expandable house structure is designed for repeated assembly and disassembly without damage.
Wall & Insulation System
- Wall Panel Type: Sandwich panel
- Core Materials: EPS / Rock Wool / PU optional
- Panel Thickness: 50mm / 75mm / 100mm
- Insulation Performance: Suitable for different climate conditions
👉 Different insulation options are available for modular container buildings in tropical, desert, or cold regions.
Roof System
- Roof Type: Insulated steel roof system
- Structure: Steel sheet + insulation layer
- Waterproof Design: Multi-layer sealing system
- Drainage: Built-in drainage structure
Floor System Options
- Base Structure: Steel frame support
- Floor Material: 18mm MGO board / fiber cement board
- Surface Finish Option:
- PVC flooring
- SPC flooring
Door & Window System
- Door Type: Steel door / aluminum door
- Window Type: PVC sliding window / aluminum window
- Glass Type: Single / double glass optional
Electrical System (Optional)
- Wiring System: Pre-installed electrical layout
- Lighting: LED lighting system
- Power Standard: Customizable based on country
Customization Options
- Layout design (free support)
- Bathroom and plumbing system
- Kitchen module
- Exterior decoration options
- Insulation upgrades
👉 We provide custom modular container building solutions based on project requirements.
Packing & Loading
- Packing Type: Foldable structure with an ultra-slim profile of only 700mm
- Loading Capacity: 6 units per 40HQ container
- Transportation Advantage: Massive reduction in shipping volume leads to substantial freight savings
Performance Parameters
- Wind Resistance: Level 10 to 11
- Seismic Resistance: Grade 7 to 8
- Fire Resistance: Depends on panel material
- Service Life: 15-20 years
Decoration Options
- Exterior Decoration: Metal carved board,WPC
- Interior Decoration: Bamboo fiber board
Structural & Material Highlights
Steel Structure System
Our detachable container house is built with Q235B galvanized steel, ensuring strong structural stability and reliable load-bearing capacity for various project applications.
- Frame Thickness: 2.1mm – 3.0mm
- Structure Type: Fully detachable steel frame
- Designed for repeated assembly and long-term use
Surface Protection
All steel components are treated with a dual-layer protection system:
- Galvanization for base anti-corrosion
- Electrostatic powder coating (60–80μm)
This ensures excellent resistance to rust and corrosion, making the structure suitable for coastal areas and high-humidity environments.
Insulation System Options
We provide multiple insulation materials to meet different climate and safety requirements:
Rock Wool Panel
- Class A non-combustible material
- Ideal for high-safety environments such as oil & gas camps
EPS (Polystyrene) Panel
- Cost-effective solution
- Suitable for moderate climates with good moisture resistance
PU (Polyurethane) Panel
- High thermal insulation performance (high R-value)
- Suitable for extreme cold or high-temperature regions
Integrated Drainage Design
Our modular container building features an advanced internal drainage system:
- Built-in water gutter system
- Hidden downspouts integrated into corner columns
- Fully enclosed drainage structure
This design ensures efficient water flow and provides reliable waterproof performance, even during heavy rainfall.
Optimized Layouts & Application Scenarios

Standard Accommodation (18m²): Ideal for worker dormitories and site security.
Combined Open Offices: Large-span collaborative spaces with glass curtain walls.
Multi-Story Complexes: Stackable up to 3 floors to maximize capacity on limited land.
Applications Section
Remote Mining & Oil Camps | Construction Infrastructure | Emergency Medical Clinics | Modular Classrooms
Frequently Asked Questions(FAQ)
How many detachable units can fit into a 40ft HQ shipping container?
What is the expected lifespan and durability of the structure?
Is the roof system 100% waterproof during heavy tropical storms?
Do I need specialized equipment or welding to assemble the units on-site?
Can these modular units be stacked for multi-story buildings?
Are the materials fire-rated and safe for industrial camps?
Get Your Free Quote Now
Feel free to reach out to us through any of the contact options provided below.
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About Prefabhouse
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