20ft Expandable Container House Overview
The 20ft expandable container house is our most popular model — balancing size, cost, and functionality for families, rental properties, and permanent homes. With double-wing expansion, it provides approximately 40m² of usable space while shipping as a standard 20ft container.
📐 Quick Specs
- Folded size: 6.0m (L) × 2.4m (W) × 2.5m (H)
- Expanded size (double-wing): 6.0m (L) × 6.4m (W) × 2.5m (H) — ~38.4m² interior
- With 30ft option: up to ~54m² total floor area
- Structure: Heavy-duty galvanized steel frame, Q235/Q345 grade
- Insulation: 75mm EPS/PU sandwich panels (upgradable to 100mm)
- Doors: Steel security door + sliding glass door(s)
- Windows: Double-glazed, aluminum frame, insect screens
- Electrical: Full pre-wiring, LED lights, switches, outlets, distribution box, RCD
- Plumbing: Complete bathroom pod + kitchen plumbing
- Floor loading: 2.0 kN/m²
- Wind load: 0.85 kN/m² (cyclone-rated to AS/NZS 1170.2 optional)
- Weight: ~4.5 tonnes (folded)
FOB → Landed Cost Breakdown
| Cost Component | 20ft Single-Wing | 20ft Double-Wing |
| FOB Price (China port) | $9,800 | $12,500 |
| Ocean Freight (varies) | $1,000–$4,500 | $1,000–$4,500 |
| Import Duty (3–15%) | $294–$1,470 | $375–$1,875 |
| Foundation (concrete slab) | $2,500–$3,500 | $3,000–$4,000 |
| Installation & Commissioning | $1,500–$2,500 | $2,000–$3,000 |
| Typical Landed Cost | $15,000–$22,000 | $19,000–$26,000 |
Best Uses
- Family home — 2-bedroom layout suitable for small families
- Granny flat — backyard independent living for elderly parents
- Rental property — Airbnb, holiday let, long-term rental income
- Construction camp — worker accommodation for 2–4 people
- Site office + accommodation — combined work and living space
Standard Layout (Double-Wing)
- 2 bedrooms (master with wardrobe, second bedroom/study)
- Full bathroom (shower, toilet, basin, mirror, water heater)
- Open kitchen with sink, hob, extractor, counter space
- Living/dining room with large windows on both sides
- Optional: separate laundry area, porch/veranda extension
Customization Options
- Layout modification: Change room sizes, add third bedroom, enlarge bathroom
- Interior finishes: Choose from standard, premium, or luxury grade
- External cladding: Color steel, wood grain panel, brick veneer, stone texture
- Roof options: Flat roof (standard), skillion roof, gable roof with overhang
- Climate packages: Arctic (100mm PU + thermal break), Tropical (reflective coating)
- Solar integration: Grid-tie or off-grid solar systems
- ADA compliance: Wider doors, accessible bathroom, ramps
Shipping & Delivery
20ft units ship folded, with 2 units per 40HQ container. Sea freight times:
- Australia: 15–20 days
- US West Coast: 25–30 days
- Caribbean / Central America: 30–40 days
- South America: 35–50 days
- Middle East: 20–25 days
- Europe: 35–45 days
Frequently Asked Questions
How many people can live in a 20ft expandable house?
Comfortably sleeps 2–4 people (2 bedrooms). The double-wing layout provides adequate space for a small family.
What foundation is required?
A concrete slab (100–150mm thick) with perimeter footings is standard. For temporary installations, concrete pads or steel screw piles can be used. We provide foundation drawings with every order.
Can it be connected to existing utilities?
Yes. Each unit has standard connection points for water supply, drainage, and electrical. Connection to local utilities is straightforward and can be done by a local plumber/electrician.
What is the lifespan?
With proper maintenance, the steel structure lasts 30+ years. Sandwich panels typically last 15–20 years and can be replaced. The original shipping container design is built for 20+ years of maritime use.
📧 Email: jack@huayinghouse.com
📱 WhatsApp: +86 153-0318-4505
🏭 Factory: Fucheng, Hebei, China
Request a custom quote for your 20ft expandable container house — including shipping, duties, and installation to your country.