Since 2008, we have set up a booth production factory, the plant area is about 5800 square meters,The main products of the company are security box, public security box, traffic police box and other boxes, as well as silent silos, space capsules, apple pods, portable toilets.
The expandable folding tiny house has moved from a novelty concept to a mainstream alternative housing solution. With global demand for affordable, mobile, and rapid-deployment structures accelerating, the double-wing folding format — pioneered by manufacturers such as Shanghai Cymdin Industrial Co., Ltd. — represents the cutting edge of prefabricated construction in 2025.
An expandable folding tiny house is a prefabricated dwelling unit engineered to collapse into standard shipping-container dimensions for transport, then expand on-site — often within hours — to two or three times its packed footprint. The most advanced variant is the double-wing design, where two lateral wing sections fold outward from a central core, dramatically increasing usable floor area without requiring a crane or specialist tools.
Unlike conventional modular buildings that arrive as flat-pack components requiring days of assembly, a folding house ships as a single, self-contained unit. Interior finishes, plumbing rough-ins, electrical conduit, and cabinetry are installed at the factory, slashing on-site labour time and quality-control risk.
Cymdin's flagship 40-Foot Double-Wing Folding House sets a widely referenced benchmark for the industry. The table below breaks down its critical dimensions in both folded (transport) and expanded (deployed) states.
| State | Length (mm) | Width (mm) | Height (mm) | Floor Area |
|---|---|---|---|---|
| Folded / Transport | 11,800 | 2,200 | 2,480 | ~26 m² |
| Expanded (External) | 11,800 | 6,220 | 2,480 | — |
| Expanded (Interior) | 11,540 | 6,060 | 2,240 | 73 m² |
The folded width of just 2,200 mm (2.2 m) is particularly significant: it fits inside a standard 40-foot high-cube shipping container, meaning a single container slot on a vessel or truck carries one complete dwelling. Once deployed, the structure nearly triples its width — from 2.2 m to 6.22 m — delivering a generous 73 m² of enclosed living space.
The interior height of 2,240 mm meets typical residential standards in most jurisdictions, while the exterior height of 2,480 mm accommodates roof drainage slopes and light insulation panels without exceeding container clearance envelopes.
The structural integrity of a folding house depends on three interlocking systems: the primary steel frame, the folding hinge mechanism, and the panel infill system. Each plays a distinct role in the unit's load-bearing capacity, thermal performance, and long-term durability.
Heavy-gauge rectangular hollow section (RHS) steel forms the main chassis. Corner castings comply with ISO 1161, allowing standard twistlock stacking during ocean freight. The frame is hot-dip galvanised or epoxy-coated to resist corrosion, a critical requirement for coastal and high-humidity deployment zones.
The wings are attached via heavy-duty piano hinges and locking cam-bolts. When expanding, the wing floor panels rotate downward while the wing roof panels rotate outward and lock flush with the central roof plane. Structural steel knee braces at each wing corner transfer live loads (furniture, occupants, snow) back into the main frame. Cymdin's system is designed to support the full 73 m² floor area without intermediate post supports, preserving an open-plan interior.
Wall, floor, and roof panels are engineered sandwich composites. Typical construction uses a 50 mm–75 mm polyurethane (PU) foam core bonded between galvanised steel skins, yielding U-values below 0.35 W/(m²·K) — broadly equivalent to a well-insulated timber-frame home. Flooring panels receive a high-density plywood substrate topped with vinyl, tile, or laminate finishes to order.
| Component | Typical Specification | Function |
|---|---|---|
| Main frame | Q345 RHS steel, hot-dip galvanised | Primary load path, stackable transport |
| Wing hinges | Stainless or zinc-alloy piano hinge + cam-bolt | Deployment mechanism & structural lock |
| Wall panels | 50–75 mm PU foam sandwich, steel skins | Thermal insulation, weather resistance |
| Roof panel | 75 mm EPS or PU sandwich with galvanised steel | Weatherproofing, insulation |
| Floor substrate | High-density plywood (18–22 mm) + finish layer | Structural deck, finished floor base |
| Windows & doors | UPVC or aluminium frame, double-glazed | Light, ventilation, security |
At 73 m², the expanded double-wing house comfortably accommodates a full multi-room layout. Cymdin's standard configuration includes a bedroom, open-plan living and dining area, a fitted kitchen, and a bathroom with shower, toilet, and vanity. Because all internal partitions are non-load-bearing, the layout can be reconfigured at the factory to suit residential, commercial, or hospitality use cases.
| Room / Zone | Standard Features | Customisation Options |
|---|---|---|
| Bedroom | Dedicated sleeping area, built-in wardrobe rough-in | Twin or double layout, additional en-suite |
| Living / Dining | Open plan, natural-light glazing | Partition wall, bay window, sliding doors |
| Kitchen | Base cabinets, sink, counter space | Full appliance pack, island counter, splashback tiles |
| Bathroom | Shower cubicle, toilet, washbasin | Bathtub, heated towel rail, dual vanity |
| MEP Systems | 220 V / 110 V wiring, cold & hot water rough-in | Country-specific standards (AU, US, UK, EU, NZ, FR) |
Certified products are a non-negotiable requirement for import into many markets. Cymdin's folding house range carries ISO, CE, and USKA certifications. CE marking confirms conformity with European health, safety, and environmental standards — a gateway requirement for sales into EU member states. ISO certification covers quality-management processes throughout manufacturing, from raw-material sourcing to final inspection.
For buyers targeting Australia and New Zealand, the company's engineering team can adapt structural and electrical specifications to meet National Construction Code (NCC) requirements and local council approval criteria. Similar bespoke engineering packages are available for North America (IBC / IRC), the Middle East, and Southeast Asia.
The rapid deployment capability and compact transport footprint make the expandable folding house suitable across a diverse set of end uses. Below is a summary of the most active application sectors in 2025.
| Sector | Use Case | Key Benefit |
|---|---|---|
| Residential | Primary or secondary home, granny flat, ADU | Low cost, rapid occupancy, relocatable |
| Construction & Mining | Site offices, worker dormitories | Single container freight, reusable asset |
| Hospitality & Eco-Tourism | Glamping cabins, resort villas, pop-up hotels | Premium finishes, minimal site disturbance |
| Emergency & Disaster Relief | Temporary shelters, field clinics | Hours to deploy, no specialist labour |
| Commercial / Retail | Kiosks, showrooms, pop-up shops | Relocatable, brand-customisable exterior |
| Education | Temporary classrooms, rural school extensions | Durable, insulated, code-compliant |
One of the strongest commercial arguments for the folding house format is its freight efficiency. Because the folded unit (11,800 × 2,200 × 2,480 mm) fits inside a single 40-foot high-cube container, buyers pay for one container slot rather than the multiple truck loads or flat-rack shipments required for conventionally assembled modular buildings.
Cymdin ships from its factory at No. 66, Caoli Road, Fengjing Town, Jinshan District, Shanghai — a location with direct access to the Port of Shanghai, the world's busiest container terminal. Two primary delivery modes are offered:
| Delivery Mode | Description | Best For | Lead Time (approx.) |
|---|---|---|---|
| Complete Unit | House ships fully assembled; ready for use on arrival | Single-unit buyers, fast occupancy needed | Production 45 days + transit 20–35 days |
| Modular / Disassembled | House ships as panels & frame; assembled on-site by local crew | Bulk orders, lower freight cost per unit | Same production cycle; shorter transit possible |
For buyers unfamiliar with Chinese import procedures, Cymdin offers DDP (Delivered Duty Paid) terms — the company handles customs clearance, import duties, and final delivery coordination, removing the logistical burden from the purchaser. On-site assembly guidance from a Cymdin engineer or regional agent (currently available across Europe, the United States, the Middle East, and Australia) can be arranged for an additional fee.
Cymdin operates both OEM (Original Equipment Manufacturer) and ODM (Original Design Manufacturer) programmes, meaning buyers can either specify a custom design from scratch or choose an existing popular style and request modifications. Customisable parameters span the entire product:
Architectural: exterior colour, cladding material, roof pitch, window and door type and quantity, terrace or deck addition, awning, staircase, guardrails.
Structural: wall thickness, frame gauge, additional snow-load or wind-load engineering, seismic bracing for earthquake zones.
Mechanical, Electrical & Plumbing (MEP): voltage standard (110 V or 220 V), plug format (Type A/B, Type G, Type I, Schuko, etc.), hot-water system (electric, gas, solar-ready), air-conditioning provision, rainwater harvesting connections.
Interior: kitchen cabinetry and appliance package, bathroom fixtures, flooring finish, ceiling material, partition layout, built-in furniture.
The company notes that size options are available in 20-foot, 30-foot, and 40-foot configurations, enabling buyers to scale up or down based on site constraints or budget.
Explore the full Double Wing Folding Room product range, or browse complementary structures including the New Space Capsule House, Apple Cabin, Container House, and Modular Building lines on the Cymdin website.
Founded in 2008, Shanghai Cymdin Industrial Co., Ltd. began as a specialist manufacturer of security booths and public-safety enclosures before expanding into the broader prefabricated structure market. Today the company operates from a 5,800 m² production facility in Jinshan District, Shanghai, and exports to Australia, New Zealand, Indonesia, Thailand, the United States, the United Kingdom, Canada, and numerous European markets.
The company's product portfolio spans folding container homes, space capsule houses, apple cabins, circular houses, soundproof cabins, modular buildings, and portable sanitation units. All products are covered by a one-year warranty from the date of receipt, and the company offers design services that incorporate local climate data — including wind speed, snow load, and seismic requirements — into the structural engineering package.
