Description
The 20ft expandable folding house is a factory-finished prefabricated home that travels as a compact container and opens on site into a full-size room. Two side wings are hinged to the central body on galvanised hinges and swing outward, so about 37 m2 of usable floor space appears without a single brick being laid. Everything inside - insulation, wiring, lighting, sockets, windows, door and floor finish - is installed in the factory and tested before shipping, which means the unit arrives as a complete room rather than a building kit.
This version is finished with grey culture stone, a lightweight manufactured stone veneer applied over the panel surface. It gives the unit the look and texture of a masonry building while keeping the weight and transport advantage of a container house, and the rough surface hides marks and weathering extremely well. It is the usual choice for permanent installations, reception buildings, estate entrances and upmarket holiday units where the buyer wants the house to read as a solid, long-term structure rather than temporary accommodation.
Under the cladding is a galvanised steel frame engineered as a single load-bearing box. The beams and columns are sized so that the wings stay true after hundreds of folding cycles, and heavy galvanised hinges link wing to body. A powder-coated, corrosion-resistant finish is applied to the whole frame, which is what allows the unit to be stored outdoors between projects.
The panels are 950-type EPS colour steel sandwich panels - 50 mm for the roof, the inner ceiling and the internal partitions, 65 mm for the external walls and the wing roofs - with 0.3 mm steel facings. The floor is 18 mm glass magnesium board over both the main frame and the folding wings, chosen because it is dimensionally stable, fire safe and unaffected by ground moisture.
Inside, the electrical system is complete: 220 V 50 Hz distribution, 300 mm flat panel lights and a large ceiling light, international three-pin and five-pin sockets, and double and single switches. Cable sections are 6 mm2 incoming, 4 mm2 for air conditioning, 2.5 mm2 for sockets and 1.5 mm2 for lighting, and the socket and switch standards can be built to the certification of the destination country.
| Parameter | Value |
|---|---|
| Product Type | 20ft Expandable Folding House (double-wing expandable container house) |
| Nominal Size | 20 ft |
| Expanded Size | L5900 x W6300 x H2480 mm |
| Folded Size | L5900 x W2200 x H2480 mm |
| Internal Size | L5460 x W6140 x H2240 mm |
| Floor Area | 37 m2 |
| Layout | Two bedrooms; one living room; one kitchen and one bathroom |
| Occupancy | 2-4 persons |
| Installed Power | 12 kW |
| Total Net Weight | 3.70 t |
| Loading Quantity | 2 sets per 40ft high cube container |
| Main Frame | Fully galvanised national-standard steel structure |
| Top and Bottom Side Beams | 80 x 100 x 2.5 mm galvanised square tube |
| Top End Beam | 2.5 mm galvanised bent section |
| Top Transverse Secondary Beam | 30 x 50 x 1.5 mm galvanised square tube |
| Bottom Longitudinal Secondary Beam | 40 x 80 x 1.5 mm galvanised square tube |
| Bottom Transverse Secondary Beam | 40 x 80 x 1.5 mm galvanised square tube |
| Steel Column | 2.5 mm galvanised bent section |
| Lifting Head | 6 mm galvanised lifting head, L210 x W150 x H160 mm |
| Side Wing Frame | P40 x 80 x 1.5 mm galvanised P-tube and 40 x 80 x 1.5 mm galvanised square tube |
| Side Wing Bottom Frame | 60 x 80 x 2.0 mm galvanised square tube |
| Folding Hinge | 130 mm galvanised hinge |
| Frame Protection | Electrostatic powder coating plus anti-corrosion coating |
| External Roof Panel | 950 type, 50 mm thick EPS colour steel sandwich panel, 0.3 mm on both faces |
| Internal Ceiling Panel | 950 type, 50 mm thick EPS colour steel sandwich panel |
| Side Wing Roof Panel | 950 type, 65 mm thick EPS colour steel sandwich panel |
| Wall Panel | 950 type, 65 mm thick EPS colour steel sandwich panel on side, front and rear walls |
| Partition Wall Panel | 950 type, 50 mm thick EPS colour steel sandwich panel |
| Floor | 18 mm glass magnesium board, main body and both wings |
| Window | PVC double-glazed sliding window; 920 x 920 mm; 4 panels |
| Door | High quality steel fire door; 840 x 2035 mm; 1 set |
| Electrical System | 220 V, 50 Hz |
| Lighting | 300 x 300 mm flat panel light and large ceiling light |
| Socket | Standard international three-pin and five-pin sockets, socket standard customised on request |
| Switch | Double and single key switches, switch standard customised on request |
| Wiring | Incoming 6 mm2, air-conditioning socket 4 mm2, general socket 2.5 mm2, lighting 1.5 mm2; national-standard cable, can be built to the certification of the destination country |
| Accessories | Corner line; skirting line; edge wrapping; waterproof tape; lifting belt; structural sealant and sealant gun |
| Exterior Finish | 20ft Expandable Folding House Grey Culture Stone |
| Scope of Supply | Steel frame; roof; wall and partition panels; floor; windows; door; complete electrical installation; lighting; sockets and switches; finishing accessories |
| Optional Equipment | Bathroom module; kitchen cabinet; air conditioning; wooden or PVC floor finish; extra windows; canopy or terrace; solar package; custom colour and branding |
| Customisation | Layout, panel thickness, door and window type, socket and switch standard and certification can be adapted to the destination market |
| Installation | Craned or forklifted into position, wings unfolded and locked, power connected; no foundation required on level ground |
Faq
We specialize in double-wing expandable container houses and folding prefab houses. We support custom sizes, interior layouts and functional configurations for site offices, staff dormitories, emergency shelters and temporary residential projects.
Yes. We can adjust the layout, doors & windows, insulation material, electrical system, interior decoration and exterior color according to your local climate and project requirements. OEM & ODM services are available.
2-3 skilled workers can finish assembly within a few hours without heavy construction equipment. All main structures are prefabricated in our factory, which greatly saves your on-site labor and time cost.
Normally the production lead time is 15–30 working days, depending on order quantity and customized requirements. We will confirm the exact schedule after we confirm your project drawings.
Our houses meet standard export requirements. We can provide related documents for customs clearance as requested, such as packing list, commercial invoice and certificate of origin. For special regions, we can discuss other required test reports.
Expandable and folding houses can be loaded into standard shipping containers. Folding design maximizes loading quantity and reduces sea freight cost. We are familiar with export packing and container loading operation.
Yes. We supply detailed installation manuals and video guides. Our engineering team offers remote technical guidance to help solve problems during installation and usage.
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