JJM 20ft expandable container house (37.0 m² / 398 sq ft). 2 bedrooms, full bathroom, open kitchen with L-shape cabinets. High-tensile steel frame. Turnkey base price: $22,000.
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See the Jinjiama Prefab Housing expandable container house concept in action: from mechanical wing unfolding to crane installation and finished interior room tours.
Experience how our precision counterbalanced hinges and structural steel chassis expand from a road-legal 7.4ft intermodal shipping envelope into a full 400+ sq ft 2-bedroom home in under two hours.
The JJM 20ft Prefab Container House combines galvanized high-tensile structural steel framing with high-performance thermal insulation sandwich panels. Designed for extreme durability, seismic resilience, and rapid installation.
| Living Area | 398 sq ft (37.0 m²) |
|---|---|
| Bedrooms / Bath | 2 Bedrooms / 1 Full Bathroom (Wet/Dry Separation) |
| Deployed Footprint | 5,900 mm L × 6,300 mm W × 2,480 mm H (19.4 ft × 20.7 ft × 8.1 ft) |
| Folded Shipping | 5,900 mm L × 2,200 mm W × 2,480 mm H (Standard 20ft Shipping Envelope) |
| Structural Frame | High-tensile welded steel structural chassis with ISO container corner castings |
| Thermal Insulation | 50mm-75mm high-density thermal insulated composite wall and ceiling panels |
| Electrical System | 110V / 60Hz US Standard Pre-Wired Outlets, LED Fixtures, and Main Panel |
| Turnkey Base Price | $22,000 (Includes complete turnkey home) |
Our modular expandable buildings are pre-engineered for three high-demand applications:
Traditional home construction averages $350-$600 per square foot and takes 9-18 months. Jinjiama Prefab Housing delivers turnkey precision factory homes at a fraction of the cost.
Arrives fully fitted with bathroom and kitchen pre-installed. Simply level the foundation, unfold the side wings, and connect utilities.
Includes structural steel framing, thermal enclosure, double-glazed windows, bathroom suite, kitchen cabinets, and US-compatible 120/240V power.
Fabricated indoors using automated laser cutting and anti-corrosion electrostatic coating. Backed by our 1-Year Manufacturer Structural & Component Warranty.
