Granny Flat 20Ft 40 Ft Expandable Container Folding House Prefab Shipping Prefabricated Mobile Home 2 3 4 5 Bedroom

Product Description

Expandable container home structural view Prefabricated mobile home setup

Technical Specifications

Specifications Details
Option size Small 20ft, 20ft, 30ft, 40ft, etc... We also had special size for 2.9M height
Main material Galvanized steel structure with sandwich panel wall and doors, windows, etc.
Weight 3200kgs
Service life 30-40 years
Color White, blue, green, brown, or customized
Steel structure 3mm Hot galvanized steel structure with 4 corner casts and
(1)18mm fiber cement board;
(2)1.6mm PVC flooring;
(3)50mm rock woll, eps or PU sandwich panel
(4)Galvanized steel base plate.
Columns 3mm Hot galvanized steel structure
Wall 50/75/100mm EPS/Rock wool/PU Sandwich Panel
Roof 3-4mm Hot galvanized steel structure with 4 corner casts and
(1)Galvanized steel roof covering;
(2)50mm -70mm eps sandwich panel or PU sandwich panel ;
(3)50mm -70mm eps sandwich panel or PU sandwich panel ;
Door Made of steel/aluminum frame. Dimension W870*H2040mm, furnish with a handle lock with 3 keys or sliding glass door W1500*2000mm.
Window Made of PVC/aluminum fame. Dimension W800*H1100mm, glazed with double glass in a thickness of 5/8/5mm.
Connection kits PVC Connection kits for ceiling, floor and walls.
Electricity 3C/CE/CL/SAA Standard, with distribution box, lights, switch, sockets, etc.
Optional Accessories Furniture, sanitary, kitchen, A/C, electrical appliance for accommodation, office, dormitory, toilet, kitchen, bathroom, shower, steel roof, cladding panels, decorative material, etc.
Advantage (1) Fast installation: 2 hours/set, save labor cost;
(2) Anti-rust: all material use hot galvanized steel;
(3) Waterproof: without wood ceiling, wall;
(4) Fireproof: Fire rating A grade;
(5) Simple foundation: just need 12pcs concrete block foundation;
(6) Wind-resistant (11 level) and anti-seismic (9 grade)
Durable heavy duty container frame
Enhanced Structural Integrity

Our house weighs more than 3 tons while others weight 1.5 tons, ensuring superior stability and durability.

Expandable house framing detail Waterproof wall and structural joint details

Full Customization Capabilities

All visible parts of the house can be customized, including doors, windows, interior and exterior walls, roof, interior layout, etc. Color, material, version, thickness, etc. can be customized according to customer needs.

  • Interior Flooring: Features a 20mm calcium silicate board and anti-corrosive multi-layer bamboo-wood composite board. Our composite board undergoes special treatment, with a coated surface using a process that is waterproof, moisture-resistant, and anti-corrosive.
  • Wall Construction: Constructed with fire-resistant and flame-retardant 75mm EPS sandwich panel, coupled with a lightweight steel frame design. This ensures strong structural waterproofing, seismic resistance, excellent thermal insulation, and robust resistance to moisture and termite damage.
  • Advanced Sealing: We use polyurethane adhesive sealant instead of traditional oil-based sealants. The polyurethane sealant provides superior sealing, meeting your requirements without causing any issues such as leakage.
  • Doors and Windows: Crafted using aluminum alloy materials and double-layer insulated glass, offering effective thermal and sound insulation with heightened security.
  • Utilities Installation: We take care of the installation of plumbing and electrical systems, ensuring compliance with your country's electrical safety standards.

Interior & Exterior Gallery

Spacious living room area design Modern kitchen with fitted cabinets Comfortable cozy bedroom layout
Functional bathroom with plumbing fixtures Durable exterior siding profile Fully expanded container house ready for use
Proven Market Performance

70% of expandable houses sold in Australia and the United States come from our factory. Compared with container houses on the market, ours weighs twice as much.

Global factory export shipment

Smart Expandability | Easy Mobility | Durable and Sturdy

  • One-click expansion, double the space: The innovative sidewall expansion design allows for transport within the standard container size, instantly expanding the space by 100%-200% upon deployment. It perfectly balances transport convenience with comfortable living space.
  • Plug-and-Play, Quick Deployment: The main structure is pre-assembled at the factory, and the interior is fully furnished. Upon arrival, simply expand, level, and connect water and electricity, allowing for quick move-in within 1-2 days, significantly saving time and construction costs.
  • Durable and Secure: The main structure is constructed of high-quality weathering steel and standard container construction, offering earthquake, wind, fire, and theft resistance, with a service life of over 20 years, far exceeding that of traditional prefabricated housing.
  • Environmentally friendly and versatile: The modular design allows for repeated disassembly and relocation, and the materials are recyclable, making it a truly green building. It is suitable for a variety of scenarios, including campsites, construction sites, mobile offices, tourist accommodations, and emergency housing.
Innovative expandable structure demonstration

Expandable Modular Prefabricated Living Container Houses

The prefabricated camp house description: 37m² or 74m²

  • Modular home inside: This pop up home has a beautiful open plan lounge and kitchen, with great size bathroom and literally folds out.
  • Construction and assembly: On average, it takes our highly skilled and experienced team 3 days to construct on site. It is fully transportable and relocatable and can be packed up within hours with very little fuss.
  • Transport or relocating: They are transported on a tilt tray and placed onto 12 foundations.
  • SAA approved wiring: You can use it as a granny flat, temporary home or your principal place of residence, and it comes with SAA approved wiring.
  • Framing: The structure is galvanized steel with 75mm EPS sandwich panels, making the house very well insulated and keeping it cool in summer and warm in winter, and is compliant with an Australian engineers design certificate and form 15 for council. The house is very homely, bright, has plenty of windows for natural light and will deliver a fantastic return on investment, however you use it.
Interior modular framing

Standard Inclusions

  • Kitchen: Gloss 3.6m kitchen with cupboards and draws, caesar stone bench tops with double stainless-steel sink and flick mixer.
  • Partitions: Internal partition walls for the bedrooms.
  • Flooring: Base floor is 18mm marine plywood with quality PVC floor coverings fitted.
  • Trims: All cornices and architraves included.
  • Electrical: SAA approved 2.5mm cable to power points, 1.5mm cable to lights, light switches & fittings. Waterproofed external plug. Powder board with safety switch.
  • Warranty: We have a 10-year structural warranty on galvanized steel framing.
  • Bathroom & Sanitary Ware: Australian or US standard water marked toilet, bathroom vanity and sink, flick mixer, mirror shaving cabinet, towel rail, and all fittings. Includes a 900mm x 900mm shower cubicle with adjustable removable shower-head and mixer.
  • Windows & Doors: 9 x Double glazed glass and aluminum sliding windows with free fly screens, and 1 x Double glazed glass and aluminum casement door.
  • Fittings: 6 x Lights and 11 x Power points.
Complete kitchen and bath setup

Key Benefits of Container Houses

  • Cost Efficiency: The cost of the container is 30% lower than that of traditional buildings, which is more suitable for individual small-scale operation.
  • Rapid Construction: The construction period is short, more than 85% faster than the traditional structure, and the construction period can be as fast as 10 days.
  • High Mobility: At the same time, the container building can be moved easily.
  • Eco-Friendly: Container houses are built without construction waste and noise pollution, which is green and provides environmental protection.
Eco friendly container house setup

Frequently Asked Questions

How long does it take to expand and retract? How many people are needed?
It's very quick! 4-6 people can complete an expansion in about 10-15 minutes.
How well does the expansion seal? Will it leak rain or drafts?
Rest assured! We use a multi-layer sealing design consisting of high-performance sealing strips, waterproof rain curtains, and drainage channels. We've undergone rigorous waterproofing testing to ensure the expansion is as completely watertight and airtight as the main structure.
How is its thermal insulation performance? Can it be used in extremely cold or hot regions?
Absolutely. The 75mm or greater polyurethane insulation layer far outperforms traditional brick walls. Simply add an appropriately sized air conditioner or heater for comfortable use in most climates worldwide.
Is it structurally safe? Will the expansion become unstable, especially in strong winds?
It is extremely safe and stable. This is a core design priority. First, the main structure is a sturdy steel frame. Second, the expansion section is securely locked to the main structure using multiple mechanical locking devices, forming a rigid, integrated unit. Its wind resistance has been professionally calculated and tested, ensuring it can withstand strong winds. You can be assured of this.
What if I need to move?
The process is simple: 1) Secure and store the contents; 2) Retract the structure back into its container; 3) Load it onto a truck with a crane or forklift for transportation. It can be reassembled and disassembled an unlimited number of times, making it an ideal choice for mobile assets.
Is this product environmentally friendly? Does it conform to modern green building concepts?
Yes, it is an outstanding example of green building. This is primarily reflected in three key aspects: 1) Environmentally friendly materials: The main structure is made of recyclable steel, reducing resource consumption; 2) Environmentally friendly construction: Factory prefabrication significantly reduces on-site noise, dust, and construction waste; 3) Environmentally friendly operation: Excellent thermal insulation reduces air conditioning energy consumption, and an optional solar system enables energy self-sufficiency, even achieving "zero-carbon" operation.

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