

A prefab folding house delivers a complete, furnished living unit that arrives folded to standard shipping dimensions and expands on site in one to two days, without the months of construction, permitting and contractor coordination that conventional building requires. For property owners, farm operators and individual buyers who need additional living space quickly — vacation homes, worker housing, guest quarters or extra family rooms — the core advantage is that the unit folds for transport, then expands horizontally to reveal a usable floor area several times the folded size, with all interior partitions, fixtures and fittings already installed at the factory. Foldable modular homes for sale appeal most strongly to buyers who want a building ready for water and power connection the day it arrives, with no construction crew to hire and no multiple trades to coordinate.
YG Prefab Folding House Technical Specifications:
| 20FT Basic Characteristics | External dimension (mm) | W6260*L5900*H2480(Side 2270) |
| Internal dimension (mm) | W6160*L5560*H2240(Side 2150) | |
| Folded state (mm) | W2200*L5900*H2480 | |
| Total mass (kg) | 3000 | |
| 30FT Basic Characteristics | External dimension (mm) | W6160*L9000*H2480(Side 2180) |
| Internal dimension (mm) | W6200*L8660*H2240(Side 2060) | |
| Folded state (mm) | W2200*L9000*H2480 | |
| Total mass (kg) | 5000 | |
| 40FT Basic Characteristics | External dimension (mm) | W6160*L11800*H2480(Side2180) |
| Internal dimension (mm) | W6080*L11540*H2200(Side2060) | |
| Folded state (mm) | W2200*L11800*H2480 | |
| Total mass (kg) | 7000 | |
| Smaller Fold Size | External dimension (mm) | W4820*L5900*H2480(Side2270) |
| Internal dimension (mm) | W4660*L5560*H2240(Side2150) | |
| Folded state (mm) | W700*L5900*H2480 | |
| Total mass (kg) | 1850 |


Spain Case: A Family Home That Arrived in a Day
Customer Background: A family in Spain with a rural property who needed additional living space for their growing household. The parents wanted to provide independent accommodation for their adult child and partner on the same property.
The Challenge: The family had a large plot with an existing house but needed a separate, self-contained dwelling for their adult child. Traditional construction would have taken months and required permits, foundation work, and significant disruption. The family wanted a solution that could be delivered quickly, set up with minimal site work, and provide comfortable, permanent living space.
The Solution: The family chose the 40ft YG prefab folding house. The unit provides a complete living space with a bedroom, kitchen, bathroom, and living area. It arrived on a truck, was craned into position on a prepared level area, and unfolded within hours. The pre-installed electrical wiring and plumbing meant connections took less than a day. Within 72 hours, the unit was ready for occupancy.
Customer Feedback: “We had been looking at building an extension or a separate cottage for over a year. The costs were high and the wait times were ridiculous. The portable expandable homes arrived on a Tuesday and were ready for our family member to move in by Friday. The quality is solid—steel frame, good insulation, proper fixtures. It feels like a real house, not a temporary structure. We are already planning to add a second unit for another family member.”


New Zealand Case: A Separate Dwelling for Extended Family
Customer Background: A homeowner in New Zealand with a large suburban property. The homeowner wanted to create a separate, self-contained dwelling for an aging parent who needed to live close to family.
The Challenge: New Zealand construction costs have risen significantly in recent years. Building a small standalone dwelling from scratch involves a lengthy consent process, foundation work, framing, roofing, electrical, and plumbing. The homeowner received quotes that were well above budget and timelines that stretched over six months. The homeowner needed a solution that could be delivered quickly, installed with minimal site disruption, and provide a comfortable, independent living space for a parent.
The Solution: The homeowner chose the 40ft YG prefab folding house. The unit provides a complete living space—a bedroom, bathroom, kitchen, and living area—within the expanded footprint. The homeowner prepared a level pad on the section, and the house was delivered and unfolded in a day. The pre-installed kitchen cabinets, bathroom fixtures, and electrical system meant the parents could move in immediately.
Customer Feedback: “We looked at building a separate dwelling the traditional way. The quotes were eye-watering and the wait times were ridiculous. The prefab foldable homes arrived and were set up in a day. My mother moved in the next morning. She has her own space, her own kitchen, her own bathroom—and we have privacy. The house is solid, well-insulated, and comfortable. I have already recommended it to two neighbors who are in the same situation.”


YG Prefab Folding House Standard Configuration
Every YG portable expandable homes comes with a complete package designed for immediate occupancy
- All windows and exterior doors installed
- Kitchen cabinets and benchtops
- Bathroom toilet, vanity, shower, and fixtures
- Complete electrical wiring with outlets and switches
- Full plumbing system with connections
- Steel frame structure with insulated wall panels
The owner does not need to purchase additional fixtures or fittings. The house is delivered ready for connection to site utilities and immediate use.
Customization Options of YG Prefab Folding House
The YG prefab folding house can be customized to suit different needs and preferences:
- Structural upgrades: Pitched roof, terrace, glass curtain wall, single-story or two-story configuration, metal carved board exterior, trailer or support legs. Roof internal height can be upgraded to 2400mm (2840mm external).
- Wall and insulation upgrades: Wall panels can be upgraded to graphene wall panels, polyurethane boards, or PU boards, thickened to 100mm. Exterior walls can be upgraded to metal carved board or Great Wall panel.
- Interior finishes: Interior walls use bamboo wood fiberboard or UV board (bathroom and wet areas). Flooring can be upgraded to marble, ceramic tile, or SPC click flooring.
- Roof upgrades: Pitched roof can be upgraded with corrugated roof, gutters and downpipes, or Great Wall panel.
- Window upgrades: Windows can be upgraded to outward-opening windows, floor-to-ceiling windows, or outward-push windows.
- Cabinet upgrades: Kitchen cabinets can be upgraded to U-shaped cabinets with overhead cabinets, laundry cabinets, and more.
YG Foldable Modular Homes For Sale
YG manufactures prefab foldable homes in 40-foot configurations, with standard fixtures including all doors, windows, kitchen cabinets, bathroom toilet, wash basin, shower enclosure, electrical outlets and plumbing, and available upgrades including 100mm polyurethane insulation, metal carved exterior panels, sloped roof with gutters, terraces, casement and floor-to-ceiling windows, and custom bedroom layouts. Every unit is fully fitted and tested at the factory, arriving folded for transport and expanding on site in 1 to 2 days with basic tools.
Tell us your climate, required bedroom count, and intended use. We recommend the right configuration and send a direct factory quote.

