Picking the right size is the first step to a successful container home project.
As a leading global manufacturer of modular buildings, CGCH gets questions every day about our 20ft and 40ft expandable containers. Which one works better for job site camps? Which can actually handle family living? What can you really fit in 38㎡ versus 72㎡? And how do costs and shipping really compare?
In this complete guide, we’re drawing on CGCH’s real-world project experience — from the FIFA World Cup in Qatar to emergency housing in Turkey, from our Congo mining camp project to a multi-million dollar community in Rwanda — to break down the key differences in layout, cost, and logistics. Our goal? To help you make the right call.
1. 20ft vs 40ft Expandable Basics
| Comparison | 20ft Expandable | 40ft Expandable |
| Folded Size (LxWxH) | 5900mm x 2200mm x 2480mm | 11800mm x 2200mm x 2480mm |
| Expanded Size (LxWxH) | 5900mm x 6320mm x 2480mm | 11800mm x 6240mm x 2480mm |
| Interior Space (Single-Story) | 38 sqm (409 sq ft) | 72 sqm (775 sq ft) |
| Double-Story Option | Flat-roof double expands to 76 sqm (818 sq ft) | Flat-roof double expands to 144 sqm (1,550 sq ft) |
| Roof/Balcony Options | Optional pitched/flat roof + balcony | Optional pitched/flat roof + balcony |
| Solar Option | Rooftop solar panels for off-grid living | Rooftop solar panels for off-grid living |
| Shipping (per 40HQ container) | Fits 2 units | Fits 1 unit |
| Typical Layouts | 1-3 bedrooms (single-story) | 1-6 bedrooms (single-story) |
| Capacity | 1-6 people (layout dependent) | 1-12 people (layout dependent) |
2. Layouts: From 38sqm Compact to 144sqm Double-Story Homes
The biggest difference between 20ft and 40ft comes down to how you want to use the space. And with CGCH, you’re not stuck with one layout. We offer flexible customization — different bedroom counts, double-story options, and even solar integration for remote locations.
2.1 20ft Expandable: 38sqm Compact Efficiency, Expands to 76sqm Double-Story
●Best For: Site surveys, couple getaways, small visitor centers, construction crew dorms, temporary family housing, remote project bases.
●Layout Logic: At 6320mm wide when expanded, the 20ft gives you surprisingly roomy horizontal space. By optimizing interior walls and furniture, we can pack multiple functions into 38sqm. Need more room? Go double-story — living space downstairs, bedrooms upstairs, total area hits 76sqm.
CGCH 20ft Layout Options:
| Layout Type | Rooms | Best For | Vibe |
| Option A (Classic) | Living + 1 Bedroom + Bathroom | Couples, solo use | Spacious living, private bedroom — comfy for 1-2 people |
| Option B (Compact Family) | Living + 2 Bedrooms + Bathroom | Small family (2+1), two coworkers | Two separate bedrooms, shared living — privacy on a budget |
| Option C (High-Density) | Living + 3 Bedrooms + Bathroom | Small crew, student housing | Max beds, minimal frills — smart for short-term group stays |
| Option D (Double-Story) | Downstairs living/kitchen/bath, upstairs 2-3 bedrooms | Folks wanting more space & privacy | 76sqm split level — living downstairs, sleeping upstairs. Feels like a real home. |
●CGCH Touch: Even in the 3-bedroom layout, smart folding furniture and storage keep things livable. All layouts can be upgraded with marble kitchen counters, glass-enclosed showers — way nicer than standard job site trailers. Double-story options? Add a balcony and rooftop solar for true off-grid living.
2.2 40ft Expandable: 72sqm Flexible Space, Expands to 144sqm Double-Story
●Best For: Long-term family living, management teams, glamping sites, remote offices, temporary dorms, small hotels, vacation homes, large African community projects.
●Layout Logic: At 6240mm wide and 72sqm total, the 40ft opens up real possibilities. Double-side expansion means true zoning — living separate from sleeping. Go double-story and you’re looking at 144sqm of space. Downstairs: living, dining, kitchen, bath. Upstairs: 3-6 bedrooms. We’re talking villa territory.
●CGCH 40ft Layout Options:
| Layout Type | Rooms | Best For | Vibe |
| Option A (Luxury) | Living + 1 Bedroom + Bathroom | High-end solo/couple, executive office | Huge space — think walk-in closet, premium finishes |
| Option B (Family) | Living + 2 Bedrooms + Bathroom | Standard family (2+2) | Master + kids room, open living/dining — ideal for daily life |
| Option C (Comfort) | Living + 3 Bedrooms + Bathroom | Multi-gen family, group living | Three separate bedrooms — everyone gets privacy |
| Option D (High-Density) | Living + 4 Bedrooms + Bathroom | Large crew, student housing | Max people but still keep a shared living area |
| Option E (Dorm) | 6 Bedrooms + Bathroom | Worker dorms, temporary camps | Bunkhouse special — six sleep cabins, one bath. All about bed count. |
| Option F (Double-Story Villa) | Downstairs living, upstairs 3-6 bedrooms | High-end families, resorts, guest houses | 144sqm of space. Add multiple balconies, pitched roof, solar. This is a real home. |
●CGCH Touch: The 40ft isn’t just about bedroom count. We can add storage rooms, balconies, roofs (flat or pitched), rooftop solar, bigger kitchens, upgraded baths. The double-story option takes it all the way — 144sqm, outdoor space, good looks, solar power. This isn’t a temporary box. It’s a permanent, sustainable home.
3. The Real Cost Breakdown: More Than Just the Unit Price
Lots of folks ask “how much for one box?” But the real project cost goes deeper. Based on our global delivery experience — especially our Congo and Rwanda projects — here’s what you actually pay for.
3.1 Base Unit & Core Configuration
●20ft Expandable (38sqm): Lower entry price, great for tight budgets or short-term gigs. Shipping win: a 40HQ container holds 2 units — cuts your ocean freight cost per unit. Price bumps up a bit with more bedrooms (more walls, more doors). Double-story costs more upfront but your cost per square foot drops.
●40ft Expandable (72sqm): Higher total price but better value per square foot. If you’re planting this for 2+ years, the 40ft is the smarter play. Prices vary from 1-bedroom luxury layouts to 6-bedroom dorms. The 144sqm double-story? Best cost-per-square-foot value, best living experience.
●Rooftop Solar: For remote spots (like Congo, Rwanda), adding rooftop solar means energy independence. Yes, it’s extra upfront. But in places with shaky grids, it pays for itself in 2-3 years — no more diesel generator fuel bills.
3.2 The Hidden Costs Nobody Talks About
●Shipping & Logistics — This is where 20ft and 40ft really part ways.
◦20ft: Super flexible. Folded width is just 2200mm. A regular pickup or medium truck can haul it. Can handle rough roads, tight spots. Our Congo project proved it — 20ft boxes made it to a remote mine site on lousy roads.
◦40ft: Needs a proper tractor-trailer. Requires wider roads, bigger turn radius. Some countries require permits or escorts for oversized loads — adds time and money. That said, we figured it out for the Rwanda community project — moved a ton of 40ft units efficiently with smart planning.
◦Double-Story: Ships the same as single-story. Stack on site. No extra shipping headache.
●Site Prep:
◦20ft: Low fuss. Just need a level spot.
◦40ft: At 11800mm long, you need a bigger, flatter site. If the ground’s uneven, site work can cost 50%+ more than a 20ft.
◦Double-Story: Needs a beefier foundation. But still way cheaper than building a traditional house of the same size.
●Power:
◦Old School: Hook to the grid or run a generator. Generators mean fuel costs — forever.
◦CGCH Solar: Rooftop panels + batteries = off-grid power. The Rwanda community runs entirely on it. Perfect for places with spotty grids. No more diesel bills.
3.3 Upgrade Options That Move the Price (And the Experience)
CGCH offers a range of upgrades. Mix and match based on your budget. And yes — roofs, balconies, and solar are all on the menu. Makes these boxes feel like real homes, anywhere on earth.
| Feature | Standard | Upgrade | Why Bother |
| Kitchen Counter | Aluminum | Marble | Looks better, cleans easier |
| Shower | Basic stall | Sliding glass door + marble floor + premium fixtures | Real spa vibes, no more wet floors |
| Flooring | PVC sheet | Wood | Warmer, cozier — feels like home |
| Windows | Plastic steel | Thermal-break aluminum / Titanium-magnesium alloy | Better insulation, quieter inside |
| Exterior Walls | Flat panel | Textured metal panel | Better looks, better insulation |
| Roof | Flat | Pitched (drains better, looks like a real house) | Actually looks like a house. Curb appeal matters. |
| Balcony | None | Awning + railings + WPC deck (any size) | Outdoor space. Makes it feel like a home. |
| Rooftop Solar | None | Panels + battery storage | Off-grid power. Game-changer for remote sites. Long-term savings. |
| Stairs | None (single-story) | Included (double-story) | Gets you upstairs safely |
| Hydraulic Struts | Included | Included | Helps the box open smooth, every time |
| Cost Factor | 20ft Single (38sqm) | 20ft Double (76sqm) | 40ft Single (72sqm) | 40ft Double (144sqm) |
| Upfront Cost | Lower | Mid-High | Mid-High | Higher (but best $/sqft) |
| Bedroom Range | 1-3 | 2-5 | 1-6 | 3-10 |
| Shipping Cost | Low — 2 fit in a 40HQ | Low — 2 kits per 40HQ | High — 1 per 40HQ | Mid-High — 1 kit per 40HQ |
| Site Prep | Easy | Moderate | Involved | Moderate+ |
| Day-to-Day Energy | Lower | Medium (zone control helps) | Higher | Medium-High |
| Rooftop Solar | Optional — great for remote spots | Optional — off-grid family living | Optional — community-scale | Optional — big off-grid setups |
| “Home” Feel | Functional | Balcony/roof/solar = home | Comfortable | Villa-level. Actually feels like a house. |
4. Quick Pros & Cons: 38sqm to 144sqm — What’s Your Play?
20ft Expandable Family ✅
| Model | Pros | Cons | Best Move |
| 20ft Single (38sqm) | Super flexible, cheap to ship, low entry price, fast deploy | Tight for long-term, 1-2 people max for comfort | Site surveys, couple getaways, small crews, Congo mine site |
| 20ft Single + Balcony | Adds outdoor space to 38sqm, feels bigger | Balcony needs ground space | Small weekend cabin — wants some outdoor living |
| 20ft Single + Rooftop Solar | Off-grid capable, long-term fuel savings | Higher upfront | Remote Africa base camp, anywhere without grid power |
| 20ft Double (76sqm) + Solar | Doubles space, separates living/sleeping, off-grid, real home vibes | Needs stairs, costs more than single | Couple/family wanting quality space, long-term remote living |
40ft Expandable Family ✅
| Model | Pros | Cons | Best Move |
| 40ft Single (72sqm) | Real space, 1-6 bedrooms, great $/sqft | Hard to move, needs proper shipping | Family home, team quarters, worker dorms |
| 40ft Single + Balcony + Pitched Roof | 72sqm of comfort + outdoor space + good looks | Needs proper transport | Glamping, boutique cabins, remote office with style |
| 40ft Single + Rooftop Solar | Community-scale power solution, long-term savings | Needs whole-project planning | Rwanda-style community, big off-grid camps |
| 40ft Double (144sqm) | Ultimate — sleeps 10+, villa vibes, multiple balconies/roofs | Highest upfront (but best $/sqft) | High-end family home, vacation rental, boutique guest house, clubhouse |
| 40ft Double + Rooftop Solar | Big off-grid community solution — power independence, zero fuel bills | Needs pro design | Large Africa camps, mine sites, off-grid resorts |
5. Why Global Clients Choose CGCH
10+ years in modular building. Delivered to 160+ countries. We’re not just a manufacturer — we’re your project partner.
CGCH’s 5 Core Strengths
| Strength | What We Do | What You Get |
| 1. Real Data, No Fluff | All specs from our official catalog. 38sqm is 38sqm. 72sqm is 72sqm. | The quote matches the delivery. No surprises. |
| 2. Africa Know-How | Done Congo mine camps. Done Rwanda mega-communities. We know African logistics, install, solar. | Your project isn’t our first rodeo. We’ve got solutions. |
| 3. Solar That Works | Not just slapping panels on a roof. We design systems for your sun hours and power needs. | Pay once, save forever. 2-3 year payback. No more generator diesel. |
| 4. Real Customization | 20ft: 1-3 beds. 40ft: 1-6 beds. Single or double. Balcony or not. Your call. | You get a home built for you. Not a cookie-cutter box. |
| 5. Global Track Record | Qatar World Cup. Turkey emergency housing. Chile mine camp. New Zealand vacation homes. | Wherever you are, we’ve done something like it before. |
Certifications
✅ ISO 9001:2015
✅ CE Marking
✅ SGS Audited Factory
✅ Multiple Modular Building Patents
What Clients Say
“CGCH’s 20ft boxes made it to our remote Congo mine site — and the roads are terrible. They delivered. The rooftop solar? We haven’t touched a diesel generator since.”
— Congo Mining Project Manager
“CGCH delivered a mixed single and double-story community for us in Rwanda. Every unit has a balcony and pitched roof — it actually feels like a neighborhood. And the whole place runs on rooftop solar. No grid. No generators. It’s the future.”
— Rwanda Community Project Owner
6. Want a Real Quote for Your Project?
CGCH pricing depends on size, stories, bedrooms, finishes (marble kitchen? fancy shower? balcony? pitched roof? rooftop solar?) and how many you buy.
The 6 Things That Drive Your Price:
●Size & Stories: 20ft single (38sqm), 20ft double (76sqm), 40ft single (72sqm), or 40ft double (144sqm)?
●Bedrooms: How many? (20ft single: 1-3, 20ft double: 2-5, 40ft single: 1-6, 40ft double: 3-10)
●Look & Feel: Balcony? Pitched roof? (This is what makes it feel like a home)
●Power: Need rooftop solar? (Game-changer for off-grid spots. Long-term savings.)
●Finishes: Standard or upgrades? (See the table above)
●Quantity: One-off or bulk? (Volume discounts. Rwanda was a bulk deal.)
7. FAQ: Your Questions Answered
Q: What’s the actual interior space of a 20ft expandable?
A: Expanded size is 5900mm×6320mm. Interior space is 38sqm (409 sq ft). Double-story gives you 76sqm (818 sq ft).
Q: What about a 40ft double-story?
A: Total space hits 144sqm (1,550 sq ft). That’s villa territory.
Q: Can I get a balcony?
A: Absolutely. Any size CGCH expandable can take a bolt-on balcony — awning, railings, composite deck. Outdoor space makes it feel like a real home.
Q: Pitched roof option?
A: Yes. Flat or pitched. Pitched looks more like a traditional house, drains better, insulates better.
Q: Can you put solar on the roof?
A: Yes — and we’re good at it. All our expandables can take rooftop solar + batteries for off-grid power. We did it in Congo. We did it big-time in Rwanda. Perfect for anywhere with an unreliable grid. Long-term, it saves serious money.
Q: How much power will solar give me?
A: Depends on your needs. 20ft single roof: 1.5-2kW system. 40ft double roof: 5-8kW system. With batteries, it’ll run lights, appliances, AC — the works.
Q: What’s the max bedrooms in a 20ft?
A: 20ft single can do 3 bedrooms + living + bath. 20ft double can do 5 bedrooms + living + bath.
Q: How many people fit in a 40ft?
A: Depends on layout. 40ft single dorm-style (6 beds, no living room) sleeps 8-12. 40ft double can sleep 10+ and still have common space.
Q: How many 20ft units fit in a 40HQ container?
A: 2 units of 20ft single, or 2 kits for 20ft double. That’s efficient shipping.
Q: Can I fully customize the layout and finishes?
A: Yes. Kitchens, baths, floors, windows, walls, balconies, roofs, solar, bedroom count — all customizable. You tell us what you need.
Q: Is double-story hard to ship and install?
A: Nope. Ships flat. Stack on site. Two boxes, one quick install. Done.
Q: How long do the hydraulic struts last?
A: We use high-quality struts, tested for tens of thousands of cycles. They’ll outlast most projects.
Q: Will solar work at night or on cloudy days?
A: Yes. Batteries store power during the day. You draw from them at night and when it’s cloudy. 24/7 power.
Q: Does solar need a lot of maintenance?
A: Nope. Panels just need occasional cleaning. Batteries last 5-8 years, then replace. Way less hassle than fueling a generator.
8. Ready to Talk? Get Your Custom Quote
Wherever you are, whatever you need, CGCH is here.
Just tell us:
●What size? (20ft / 40ft / double-story)
●How many people? (How many bedrooms?)
●Grid or off-grid? (Need rooftop solar?)
●How many units? (One or a village?)
We’ll get back to you in 24 hours with:
●A detailed quote
●Layout drawings
●Shipping options
●Similar projects we’ve done
Hope this breakdown — based on real CGCH projects and real data — helps you figure out your next move. Whether you go 20ft or 40ft, single or double, city center or remote African site, with or without rooftop solar, CGCH brings the design, quality, and global know-how to back you up.
Talk to our team. Get your custom quote.
Email: cgch-ceo@cgchcontainer.com
Web: https://cgchcontainer.com
CGCH — Your Global One-Stop Modular Camp Delivery Expert