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40ft Expandable Container House – Your ADU Solution
40ft expandable container house with bathroom. ~72㎡ layout, $22K-$48K landed. Perfect for ADU, family home, or Airbnb. Get a quote.
1. Product Overview
The 40ft expandable container house is a foldable, relocatable, ready-to-use modular home. It ships folded as a standard 40ft container, then expands on-site to double the living space.
Three Core Advantages:
| Advantage | Explanation |
|---|---|
| No foundation needed | Level, compacted ground is sufficient — no concrete required |
| Ready to use on arrival | Pre-installed bathroom, electrical, insulation, flooring |
| Relocatable | Can be disassembled, moved, and reassembled |
Who is this for?
Homeowners adding a backyard ADU (CA, OR, WA, CO, TX)
Airbnb hosts looking for unique properties
Remote workers needing a dedicated home office
Retirees downsizing to a low-maintenance home
Vacation home buyers
2. Specifications
| Parameter | Specification |
|---|---|
| Folded size (L×W×H) | 11,800mm × 2,200mm × 2,480mm |
| Expanded size (L×W×H) | 11,800mm × 6,300mm × 2,480mm |
| Expanded floor area | ~72㎡ |
| Weight | ~4,000 kg |
| Frame material | galvanized steel |
| Wall panel | rock wool / PU foam sandwich panel |
| Electrical | Pre-wired 110V/220V, LED lights, switches, outlets |
| Standard includes | Steel door, 2 windows, LED lights, outlets, bathroom (toilet + sink + shower) , 50mm insulation, PVC flooring |
| Color options | White, gray, beige, timber look, custom RAL |
3. Complete Landed Cost Breakdown (to US West Coast)
| Cost Item | Amount (USD) | Notes |
|---|---|---|
| 40ft expandable container (FOB) | 13,990 | Includes bathroom, electrical, insulation |
| Ocean freight (China → US West Coast) | 5,000 | 40ft container, seasonal variance |
| Customs clearance & duties | 500 | Prefab buildings: 0% duty typically |
| US inland trucking | 1,000 | Port to your property |
| Site prep (gravel pad) | 800 | No concrete needed |
| Utility hookup | 3,000 | Electric + water + sewer |
| Permit fees | 1,500 | Varies by city |
| Furniture & appliances (optional) | 5,000 | Fridge, bed, sofa, etc. |
| Insurance & contingency | 1,000 | Recommended |
| Total Landed Cost | 48,000 | Average: ~$30,000 |
20ft unit landed cost: 35,000.
Bottom line: For ~30,000, you can have a move−in ready ADU in your backyard. 80,000-$120,000.
4. Use Cases
Use Case 1: Backyard ADU
States like CA, OR, WA have relaxed ADU regulations. Add a separate living space for:
Aging parents (close but independent)
Adult children starting out
Long-term rental (1,5002,500/month)
Use Case 2: Airbnb / Vacation Rental
Container homes are naturally Instagrammable and highly popular on Airbnb.
Daily rate: 150−220/night
Annual occupancy: 65-75%
Annual revenue: 35,000−60,000
Payback: ~6-12 months
Use Case 3: Remote Work + Living
The 40ft unit can accommodate:
Open office area (6-8 workstations)
Small meeting room
Break area + coffee bar
Bathroom (standard)
Use Case 4: Retirement Home
Single-story, no stairs, low maintenance. Steel frame doesn‘t rust or attract termites. More freedom and more affordable than traditional retirement facilities.
Use Case 5: Vacation Cabin
Want a small getaway by the beach, lake, or forest? The 40ft expandable container is the perfect choice. Relocatable — not tied to the land.
5. Layout Options
Option A: 2-Bedroom Family Home
With ~72㎡ of expanded space, the 40ft unit can comfortably fit a complete 2-bedroom home.
| Zone | Area | Function |
|---|---|---|
| Living/Dining Room | ~18㎡ | Sofa, coffee table, TV, dining table |
| Master Bedroom | ~12㎡ | Queen/King bed, wardrobe, nightstand |
| Second Bedroom | ~10㎡ | Twin/Child’s bed, desk, wardrobe |
| Kitchen | ~8㎡ | L-shaped counter, sink, refrigerator, cabinets |
| Bathroom | ~6㎡ | Toilet, sink, shower (standard), bathtub optional |
| Entry/Storage | ~8㎡ | Shoe cabinet, storage shelves, washer space |
| Hallway | ~10㎡ | Circulation space |
Best for: Families of 3-5, couples with children, homeowners needing a guest room
Option B: 3-Bedroom (Large Family / Shared Living)
| Zone | Area | Function |
|---|---|---|
| Living/Dining | ~16㎡ | Common area |
| Master Bedroom | ~12㎡ | With walk-in closet or ensuite optional |
| Bedroom 2 | ~10㎡ | Double bed, wardrobe |
| Bedroom 3 | ~10㎡ | Double bed or bunk beds |
| Kitchen | ~8㎡ | Full kitchen setup |
| Bathroom | ~6㎡ | Wet/dry separation |
| Storage | ~4㎡ | Shared storage |
| Hallway | ~6㎡ | Circulation space |
Best for: Multi-generational families, roommates, group housing, hostels
Option C: Large Office (8-12 Person Team)
| Zone | Area | Function |
|---|---|---|
| Open office | ~25㎡ | 6-8 workstations |
| Private office | ~10㎡ | Manager‘s office / finance room |
| Meeting room | ~12㎡ | 6-8 person conference table |
| Break room | ~8㎡ | Sofa, microwave, coffee maker, fridge |
| Reception | ~6㎡ | Front desk / waiting area |
| Bathroom | ~6㎡ | Standard |
| Storage/Print | ~5㎡ | File cabinets, printer |
Best for: Teams of 8-12, startups, project headquarters
Option D: Mixed-Use (Live + Work)
| Zone | Area | Function |
|---|---|---|
| Office area | ~15㎡ | 2-4 workstations |
| Meeting room | ~8㎡ | Small meetings |
| Bedroom | ~12㎡ | Living/sleeping area |
| Living room | ~12㎡ | Relaxation space |
| Kitchen/Dining | ~10㎡ | Light meals |
| Bathroom | ~6㎡ | Standard |
| Storage | ~5㎡ | Shared |
| Hallway | ~4㎡ | Circulation space |
Best for: SOHO (Small Office Home Office), freelancers, Airbnb + self-stay mixed use
6. Customization Options
| Upgrade | Description | Estimated Add-on |
|---|---|---|
| Glass curtain wall | Full or partial glass wall for natural light | +8001,500 |
| Kitchenette | Sink, counter, cabinets, fridge space | +8001,500 |
| Premium insulation | 100mm rock wool for extreme climates | +300600 |
| Split AC unit | Pre-installed, ready to use | +400800 |
| Solar power system | Off-grid power for remote locations | +1,5003,000 |
| Deck/patio | Wood deck with awning | +5001,500 |
| Custom paint/wrap | Logo, brand colors, timber finish | +3001,000 |
| Stacking hardware | For stacking two units | +200500 |
7. Why Choose an Expandable Container？
vs Traditional Wood ADU
| Comparison | Traditional Wood ADU | Expandable Container ADU |
|---|---|---|
| Construction time | 6-12 months | 2-3 days |
| Cost per sq ft | 250400 | 60120 |
| Foundation required | Yes (8k20k) | No |
| Permit complexity | High | Low |
| Relocatable | ❌ No | ✅ Yes |
vs Standard 20ft Container
| Comparison | Standard 20ft Container | 40ft Expandable |
|---|---|---|
| Floor area | ~14㎡ | ~72㎡ |
| Bathroom | DIY required | Standard |
| Electrical | DIY required | Pre-wired |
| Insulation | DIY required | 50mm standard |
| Landed cost (finished) | 16,000−25,000 | 22,000−48,000 |
| Cost per sqm | 1,140−1,785 | 610−1,330 |
8. Real Example
Case: Sarah, Los Angeles, CA
| Item | Details |
|---|---|
| Property | Single-family home with large backyard |
| Product | 40ft expandable container (bathroom + kitchenette) |
| Landed cost | $34,000 |
| Use | Long-term rental |
| Monthly rent | $2,200 |
| Annual net income | $23,400 |
| Payback period | 17 months |
*“I wish I had done this years ago. The ADU pays my mortgage every month, and my tenant is lovely. The whole process from order to move-in took about 3 months.” — Sarah*
9. FAQ
Q: Does it need a foundation？
A: No. Level, compacted gravel is sufficient. Concrete is optional.
Q: Can it be stacked？
A: Yes. Up to 2 floors high with professional connectors.
Q: How long is shipping to the US？
A: Approximately 10-12 weeks from order to delivery (4-5 weeks production + 4-5 weeks sea freight + 1-2 weeks customs/trucking).
Q: Is it warm in winter and cool in summer？
A: Standard insulation works for most climates. Upgrade to 100mm + AC for extreme conditions.
Q: Does it require on-site assembly？
A: The unit arrives folded. 2-3 people can unfold it in 2-4 hours. We provide drawings and video tutorials.
Q: What‘s the warranty？
A: Steel structure: 10-15 years. Components: 1-2 years.
Q: Can I customize the interior layout？
A: Yes. Door/window positions, electrical outlets, and partitions can be adjusted at the factory.
Q: What permits do I need？
A: Most cities only require simple ADU registration, not full building permits. Check with your local planning department first.
10. Get a Quote
👉 Want an accurate quote delivered to your city？ Contact us with：
Destination city / port
Size (20ft /30ft/ 40ft)
Upgrades needed (kitchen / AC / solar / insulation)
We will reply with a detailed quote within 24 hours.
Supplier & Author Profile
- camphortreeprefabVerifiedCamphorTree Prefab
- CamphorTree Prefab is a leading flat pack and expandable container house manufacturer in China. ISO 9001 certified with 10+ years experience and over 5000 units shipped globally. We offer factory-direct pricing, customizable designs, and end-to-end project support for mining camps, tourism, commerci
Latest entries
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| Folded Size | 11,800mm × 2,200mm × 2,480mm |
|---|---|
| Expanded Size | 11,800mm × 6,300mm × 2,480mm |
| Expanded Floor Area | ~72㎡ |
| Weight | ~4,000 kg |
| Frame Material | galvanized steel |
| Wall Panel | rock wool / PU foam sandwich panel |
| Electrical | Pre-wired 110V/220V, LED lights, switches, outlets |
| Standard Includes | Steel door, 2 windows, LED lights, outlets, bathroom (toilet + sink + shower), 50mm insulation, PVC flooring |
| Color Options | White, gray, beige, timber look, custom RAL |
| Stock Status | In stock |
About CamphorTree Prefab
CamphorTree Prefab is a leading flat pack container house manufacturer, specializing in products that balance shipping efficiency with structural integrity. We offer two main product lines: Flat Pack Container Houses (cost-effective shipping, saves up to 70% on freight) and Expandable Container Houses (hydraulic expandable models from 20ft/40ft to 2-3x living space). Also available: Pop-up Store Containers for mobile retail.
Key Advantages
- ISO 9001 certified
- 10+ years of experience
- 5000+ units shipped globally
- Factory-direct pricing
- Customizable designs
- End-to-end project support
We serve industries including tourism & vacation, mining camps, public & commercial, temporary & emergency, and retail & pop-up stores.
Frequently Asked Questions
What is 40ft Expandable Container House – Your ADU Solution used for?
40ft expandable container house with bathroom. ~72㎡ layout, $22K-$48K landed. Perfect for ADU, family home, or Airbnb. Get a quote.
What are the key technical parameters of 40ft Expandable Container House – Your ADU Solution?
Key listed parameters include: Folded Size: 11,800mm × 2,200mm × 2,480mm; Expanded Size: 11,800mm × 6,300mm × 2,480mm; Expanded Floor Area: ~72㎡; Weight: ~4,000 kg; Frame Material: galvanized steel; Wall Panel: rock wool / PU foam sandwich panel; Electrical: Pre-wired 110V/220V, LED lights, switches, outlets; Standard Includes: Steel door, 2 windows, LED lights, outlets, bathroom (toilet + sink + shower), 50mm insulation, PVC flooring.
Can 40ft Expandable Container House – Your ADU Solution be customized?
Customization depends on the supplier and production requirements. Use the quote or question form on this product page to confirm specifications, branding, packaging, certificates, MOQ, and lead time.
How can I request a quotation for 40ft Expandable Container House – Your ADU Solution?
Use the Request a Quote or Ask a Question area on this product page. Include quantity, destination country, required specifications, target delivery time, and any certification or customization needs.
What should I confirm before ordering?
Confirm the final technical specification, unit price, MOQ, shipping method, warranty terms, compliance requirements, and production lead time with the supplier before placing an order.
