20ft Expandable Folding House White Flat Panel

A 20ft double-wing expandable folding house finished in smooth white flat panels, opening to 37 m2 of insulated living space.

Expanded Size: L5900 x W6300 x H2480 mm

Steel Column: 2.5 mm galvanised bent section

Lifting Head: 6 mm galvanised lifting head

Side Wing Frame: L210 x W150 x H160 mm

Side Wing Bottom Frame: P40 x 80 x 1.5 mm galvanised P-tube and 40 x 80 x 1.5 mm galvanised square tube

Folding Hinge: 60 x 80 x 2.0 mm galvanised square tube

Description

Designed for buyers who need real floor space that can still be moved, the 20ft expandable folding house folds down to a narrow transport box and unfolds into a 37 m2 living unit. The wings are part of the steel structure, not an add-on, and they are lifted into place with the same crane that sets the unit down. Because the electrical system, the sandwich panels, the windows and the floor are fitted during production, the house is ready to use the moment the wings are locked and the power is connected.

This version is finished in smooth white flat panels on all external walls. The flat, joint-free surface gives the unit a clean, minimal appearance that suits residential estates, show villages and office parks, and it reflects sunlight, which keeps the interior cooler in hot climates. White is also the easiest finish to keep looking new: dust and rain marks wash off, and any later repair or repainting blends in without colour matching. Buyers who want a neutral base for branding, signage or a company colour on the door and window frames usually start from this model.

Strength comes from a hot-dip galvanised steel frame built to national-standard sections. Side beams, end beams, columns and secondary beams are welded into one rigid box, and the folding wings hang on 130 mm galvanised hinges that are rated for repeated opening. Electrostatic powder coating plus an anti-corrosion layer protects the steel against rust, salt air and long-term UV exposure.

Thermal performance comes from 950-type EPS sandwich panels throughout: 65 mm on the external walls and the wing roofs, 50 mm on the main roof, the inner ceiling and the partition walls. An 18 mm glass magnesium floor deck covers the main body and the two wings, giving a solid base that can be finished with wood laminate, vinyl or tile according to the project.

Technical Specifications

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 White Flat Panel
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

What types of modular houses do you mainly supply?

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.

Can the expandable container house be customized?

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.

How long does it take to assemble one expandable house on site?

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.

What is the lead time for mass orders?

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.

What certifications do your modular houses have for export?

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.

How about the shipping and loading method?

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.

Do you provide after-sales technical support?

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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