Expandable Modular House
• Sizes: 20ft (27.5m²), 20ft wide (37m²), 30ft (56m²), 40ft (73m²), 30ft/40ft flat-top
• Freight-optimized: 6 units/40HQ for narrow, progressive for larger
• Heavy galvanized steel frame; insulated sandwich panels (EPS/rock wool/PU)
• Full kit: steel door, UPVC windows, 3mm anti-slip PVC, LED, electrical panel
• Flexible: classroom, clinic, office, dormitory, or multi-purpose hall
• 10-year life; recyclable; education, healthcare, construction, community projects
Expandable Modular House – Dynamic Space Solutions for Modern Construction
WECHEER Holding Group delivers enterprise-grade Expandable Modular House solutions backed by 40+ years of manufacturing excellence and six intelligent production bases across China. Our patented twin-wing fold-out system provides up to 76m² of usable space while maintaining a compact folded profile as narrow as 700mm—enabling six 20ft units per 40HQ container. Constructed from hot-dipped galvanized Q235B steel with insulated sandwich panels rated R-12 to R-20, each unit deploys in under 30 minutes with just two workers. With an annual production capacity exceeding 300,000 modular sets and proven performance across 100+ countries, our expandable housing meets grade 8 seismic and grade 11 wind load standards for reliable all-climate operation.
Why the Expandable Modular House Redefines Temporary and Permanent Construction
Rising labor costs, weather delays, and logistical bottlenecks are some of the growing obstacles facing traditional site-built construction. By using a folding butterfly mechanism that folds to provide 2x–3x the living area while compacting into typical shipping dimensions, the product solves these problems. This design can save up to 75% on ocean freight expenses compared to rigid container dwellings.
Your projects must be completed quickly without compromising quality. Our units go from transport mode to move-in readiness the same day since they are fully insulated, pre-plumbed, and pre-wired. The Expandable Modular House adjusts to your schedule and budget, whether you are building modular schools, starting an emergency medical clinic, or setting up a remote mining camp.
Six Versatile Configurations to Match Every Project Requirement
| Model | Extended Dimensions (L×W×H mm) | Folded Dimensions (L×W×H mm) | Floor Area | Container Load |
|---|---|---|---|---|
| 20ft Narrow Twin-Wing | 5900×4800×2480 | 5900×700×2480 | 27.5㎡ | 6 pcs/40HQ |
| 20ft Wide Twin-Wing | 5900×6300×2480 | 5900×2200×2480 | 37㎡ | 2 pcs/40HQ |
| 30ft Twin-Wing | 9000×6220×2480 | 9000×2200×2480 | 56㎡ | 1 pc/40HQ |
| 40ft Twin-Wing | 11800×6220×2480 | 11800×2200×2480 | 73㎡ | 1 pc/40HQ |
| 30ft Flat-Top | 9000×6420×2450 | — | 58㎡ | 1 pc/40HQ |
| 40ft Flat-Top | 11800×6420×2450 | — | 76㎡ | 1 pc/40HQ |
Core Components:
Structure: Sturdy frame made of galvanized steel (Q235B)
Wall: Sandwich panel with insulation (EPS, rock wool, or PU optional)
Floor: fiber cement board with 3mm anti-slip PVC flooring
Door: Security door made of steel
Window: Double-glazed UPVC window
Electrical: switches, outlets, LED lighting, circuit breaker panels
Lifespan: 10+ years, completely recyclable
Five Compelling Advantages That Maximize Your Investment
Ultra-Quick Deployment: No tools are needed for the innovative twin-wing system. In less than 30 minutes, two workers can unlock, unfold, and secure the unit, reducing labor costs and project completion times.
Shipping Cost Breakthrough: Compared to completed alternatives, compact folding profiles can save international freight costs by up to 60% by fitting six 20-foot-narrow units per 40-hectare container.
Large & Flexible: Take advantage of up to 76 square meters of open floor space. To accommodate changing project requirements, design layouts as single-bedroom homes, multi-room offices, medical examination rooms, or classrooms.
All-Climate Durability: In humid and coastal conditions, galvanized steel frames are resistant to corrosion. When exposed to harsh heat, cold, and wind loads up to grade 11 (120 km/h), high-performance sandwich panels preserve interior comfort.
Reusable and sustainable: Made entirely of recyclable materials with no trash produced on-site. In accordance with international green building standards, move and redeploy units several times without causing structural deterioration.
Wide-Ranging Applications Across Industries
WECHEER's Expandable Modular House serves diverse sectors with proven reliability. On distant railroad and highway projects, construction companies use multi-unit worker dormitories. In underprivileged areas, healthcare providers set up quick-response mobile clinics. Modular classrooms are set up by educational institutions to handle spikes in enrollment.
Our modules are trusted by mining and energy businesses to provide off-grid camp living in harsh settings. Eco-friendly glamping resorts with little influence on the site are built by tourism operators. Our inflatable structures are used by government organizations for emergency isolation wards, transitional housing programs, and disaster relief.
The solution provides adaptable, long-lasting space wherever you need it, from rural community centers to temporary workplaces in oilfields.
Technical Excellence Rooted in 40 Years of Industry Leadership
WECHEER Holding Group's manufacturing expertise dates back to 1984. As a national high-tech enterprise, we operate six intelligent production bases spanning over 200,000㎡. Our annual output exceeds RMB 3 billion, with capacity for 300,000+ modular container sets.
We maintain long-term partnerships with China Railway, China State Construction, and China Communications Construction. For large-scale and urgent projects, more than 30 service locations around the country guarantee prompt response. With the help of thorough export logistics and after-sales support, our products are delivered to more than 100 countries.
Strict quality inspections encompassing thermal performance, fire safety, and structural integrity are performed on each unit. Through ongoing R&D investment, we surpass basic criteria while adhering to international building norms.
Frequently Asked Questions
Q: What sizes are available for the Expandable Container House?
A: We offer six configurations: 20ft Narrow (27.5m²), 20ft Wide (37m²), 30ft Standard (56m²), 40ft Standard (73m²), 30ft Flat-Top (58m²), and 40ft Flat-Top (76m²). Custom dimensions available upon request.
Q: How long does installation take and how many workers are needed?
A: The patented twin-wing system requires only 1–2 workers and under 30 minutes to fully expand and secure. Units arrive pre-wired and pre-plumbed for straightforward utility connections.
Q: What is the wall material and insulation performance?
A: Walls feature high-density sandwich panels with EPS (standard), rock wool (Class A fire resistance), or PU foam (superior thermal insulation). Panels meet international fire and energy standards for diverse climates.
Q: Can the unit be relocated after installation?
A: Absolutely. Simply fold wings back, secure panels, and the unit returns to compact shipping size. Relocate and reuse multiple times without structural degradation—ideal for temporary camps and phased projects.
Q: What foundation is required for an Expandable Modular House?
A: A concrete slab or strip foundation ensures optimal stability. For temporary sites, industrial ground screws or concrete block piers work well, provided 12–16 support points beneath the chassis.
Q: How does the unit handle extreme cold climates?
A: For sub-zero environments, we recommend upgrading to 75mm–100mm PU sandwich panels, which offer superior thermal retention and prevent cold bridging at steel frame connections.
Partner with WECHEER for Your Next Modular Project
Ready to usze the Expandable Modular House to accelerate your construction timeline while reducing costs? Contact our engineering team at info@cwchouse.com to discuss custom configurations and bulk orders.
