
3-bedroom, 1-living room prefabricated house

The three-bedroom, one-living room expandable prefabricated house is a high-end modular housing solution developed by Wanzhi Steel for medium and large families, long-term residences, or group accommodation needs. Building upon the 2-bedroom, 1-living room product, this expanded version offers more living space and greater comfort, while retaining the core advantages of prefabricated housing: efficiency, economy, and reusability.
As a professional prefabricated modular housing manufacturer, Wanzhi Steel’s three-bedroom, one-living room expandable house design balances functionality and durability, is easy to install, and is an ideal choice for permanent family homes, construction site staff dormitories, emergency shelters, and other scenarios.
Specification
| Item | 3-bed, 1-living room expandable container home |
| Size | 20ft, 30ft, 40ft |
| Main Structure | ISO9001, CE, SGS, BV |
| Apartment Layout | 3 bedrooms + 1 living room + 1 kitchen + 1 bathroom |
| Wall Thickness | 50/75/100 mm (customizable) |
| Doors | Stainless Steel Security Door / Aluminum Alloy Door / PVC Door |
| Windows | Aluminum Alloy Window / Plastic Steel Window |
| Color | Gi steel structure + sandwich panels (EPS/rock wool / PU optional) |
| Electrical System | Prefabricated concealed wiring, supports 110V/220V, 50/60Hz (customizable) |
| Certifications | ISO9001, CE, SGS,BV |
| Container Load Capacity | 2 units / 40HQ (20ft), 1 unit / 40HQ (30ft/40ft) |
| MOQ | 1 set |


Apartment layout
- 3 Separate Bedrooms: Each bedroom has a window, ensuring ample natural light and your privacy. The sleeping area can accommodate one or two people, creating a bright and warm living experience.
- 1 Open-Plan Living Room: A spacious common area suitable for family gatherings, working, daily leisure, and socializing.
- 1 L-Shaped Kitchen with Worktop: Equipped with large appliances, cabinets, and water supply and drainage connections, ready for immediate use.
- 1 Separate Wet and Dry Bathroom: Equipped with a shower, toilet, and sink, with clear functional zoning for improved efficiency.
- Optional Amenities: For special needs, additional components such as balconies/terraces, stairs and safety handrails, and awnings can be added to further expand the outdoor leisure space.


Advantages
Flexible Space Expansion, Maximizing Space Utilization
The expandable double-wing structure horizontally enlarges the space, easily reaching a building area of 120㎡, with a space utilization rate of up to 92%, achieving a small footprint and a large living space.
Long-lasting and Durable
Utilizing high-specification galvanized square tubing, it is rust-proof and corrosion-resistant, with excellent wind and earthquake resistance, requiring virtually no maintenance, and has a service life of 30-40 years. One-time investment, long-term benefits.
Portable and Movable
The house is pre-assembled in the factory and can be transported as a whole or in sections, suitable for various terrains and locations. On-site installation takes only 1-2 days.


Energy-Saving and Soundproof
The walls and ceiling use metal sandwich panels, providing comprehensive leak prevention, heat insulation, fireproofing, and sound insulation. Installation and use are not limited by temperature or region.
Deep Customization Support
From layout and building materials to electrical systems, full customization is supported, ensuring compliance with standards in Europe, America, Australia, and New Zealand worldwide, allowing for immediate use after installation.
Installation video

Customization options
| Items | Optional details |
| Dimensions | 20ft/30ft/40ft or customer-specified size |
| Layout | Bedroom/living room ratio, kitchen and bathroom size can be flexibly adjusted |
| Materials | Wall panel (EPS/rock wool/PU) and flooring type are optional |
| Exterior & Interior | Exterior wall color, door and window style (PVC/aluminum alloy), and interior decoration style are all available |
| Electrical System | Supports 110V/220V, 50/60Hz, conforming to standards in Europe, America, Australia, and New Zealand. |


Size, weight, and shipping
| Project | 20ft | 30ft | 40ft |
| Folded Dimensions | L5900×W2200×H2480 mm | L9000×W2200×H2480 mm | L12000×W2200×H2480 mm |
| Expanded Dimensions | L5900×W6300×H2480 mm | L9000×W6300×H2480 mm | L12000×W6300×H2480 mm |
| Internal Dimensions | L5460×W4640×H2240 mm | L8460×W4640×H2240 mm | L11460×W4640×H2240 mm |
| Building Area | ~37 m² | ~57 m² | ~76 m² |
| Gross Net Weight | 2.8–3.0 tons | ~3.5–4.0 tons | ~4.5–5.0 tons |
| Capacity | 2–4 people | 6–8 people | |
| Color | White/Blue/Grey or custom | 4–6 people | White/Blue/Grey or custom-made |
| Lifespan | 25–30 years or more | 25–30 years or more | |
| Container Load Capacity | 2 sets / 40HQ | White/Blue/Grey or custom-made | 1 set / 40HQ |


Why Choose Wanzhi Steel?
- Factory Direct Supply: No middlemen, providing wholesale partners with stable prices and a reliable supply chain.
- Quality Certification: Meets international standards such as AISI, ASTM, GB, and EN, and holds authoritative certifications such as ISO, SGS, and BV.
- In Stock and Fast Delivery: Standard models are always in stock, and orders can be shipped within 15–30 days after confirmation.
- Global Service: Our multilingual sales team is ready to provide you with one-stop solutions for project planning, logistics, and after-sales service.


Application scenarios
- Residential Scenarios: Can serve as temporary or permanent residences or rural villas, providing families with a comfortable and high-quality living environment; it can also solve housing difficulties in remote areas.
- Office and Collective Accommodation Scenarios: Suitable for use as dormitories for construction site employees, combined temporary office and accommodation, or small offices/studios, providing employees with a quiet and comfortable living and working space.



- Emergency and Public Welfare Scenarios: In post-disaster reconstruction and emergency resettlement scenarios, it can quickly provide safe and stable temporary housing for disaster victims, helping them overcome difficulties.
- Commercial Scenarios: Can be transformed into tourist accommodations, holiday homes, ticket booths, campsite accommodations, small shops, cafes, etc., enhancing the quality of the experience.
Contact Us
Whether building a family home or expanding an overseas camp, Wanzhi Steel is committed to providing you with cost-effective, one-stop solutions. We support mixed-use orders and offer free floor plan design services.


If you are looking for a reliable supplier of high-quality, scalable, prefabricated three-bedroom homes, please contact us for a free quote and solutions.

Wanzhi Steel is a Chinese prefabricated housing manufacturer with ISO9001 and CE international certifications. We specialize in producing 1-bedroom, 1-bathroom, 2-bedroom, 1-living room, and 20ft/40ft double-wing expandable homes. With high-quality service, our products have been shipped to over 120 countries.
