External Dimensions
20.73 ft (W) × 19.35 ft (L) × 8.14 ft (H)
Width: 6320 mm → 20 ft 9 in
Length: 5900 mm → 19 ft 4 in
Height: 2480 mm → 8 ft 1 in
Side Height: 2270 mm → 7 ft 5 in
Internal Dimensions
20.20 ft (W) × 18.24 ft (L) × 7.35 ft (H)
Width: 6160 mm → 20 ft 2 in
Length: 5560 mm → 18 ft 3 in
Height: 2240 mm → 7 ft 4 in
Side Height: 2150 mm → 7 ft 1 in
Folded Dimensions
7.21 ft (W) × 19.35 ft (L) × 8.14 ft (H)
Width: 2200 mm → 7 ft 2 in
Length: 5900 mm → 19 ft 4 in
Height: 2480 mm → 8 ft 1 in
Engineering Metrices
- Anti-earthquake rating: Level 8
Wind resistance: 0.6 kN/m² (up to 120 km/h)
Load Capacity:
Roof (middle): 120 kg/m²
Roof (slope): 100 kg/m²
Floor: 200 kg/m²
Snow load:
Middle top: 1.2 kN/m²
Bevel top: 1.0 kN/m²
Thermal conductivity: 0.05 – excellent insulation efficiency.
Total Weight
- Approx. 3,200 kg → 7,054 lbs
MOB WESTBROOK – 20FT Premium Expandable Home
Bold Dark Finish • American Style • Modern Industrial Luxury
MOB WESTBROOK is a premium 20FT expandable modular home designed for those who prefer a bold, modern, and high-end American architectural style. Featuring a deep charcoal/black textured exterior with a strong steel frame and elegant glass entry, it delivers a powerful, upscale presence—perfect for luxury homes, private cabins, offices, Airbnb units, and premium rental spaces.
Built with a high-strength steel structure and insulated panel system, MOB WESTBROOK ensures durability, weather resistance, and year-round comfort. Its refined dark aesthetic combined with fast deployment makes it a perfect blend of strength, sophistication, and functionality.
MOB WESTBROOK – 20FT Premium Expandable Home
Bold Dark Finish • American Style • Modern Industrial Luxury
MOB WESTBROOK is a premium 20FT expandable modular home designed for those who prefer a bold, modern, and high-end American architectural style. Featuring a deep charcoal/black textured exterior with a strong steel frame and elegant glass entry, it delivers a powerful, upscale presence—perfect for luxury homes, private cabins, offices, Airbnb units, and premium rental spaces.
Built with a high-strength steel structure and insulated panel system, MOB WESTBROOK ensures durability, weather resistance, and year-round comfort. Its refined dark aesthetic combined with fast deployment makes it a perfect blend of strength, sophistication, and functionality.
✨ Key Highlights
Modern full-glass facade with wide viewing panels
Double-vacuum insulated safety glass for thermal & sound protection
Expands from a 20FT compact unit into a wide, spacious living interior
Pre-installed electrical, plumbing, flooring & ceiling
Suitable for living, office, studio, resort rooms & premium rentals
Delivered folded; ready for expansion in just a few hours
🏡 Interior Experience
Bright natural lighting throughout
Stylish, open-plan layout feel
Smooth interior wall finish for a clean, premium look
Perfect for luxury resort cabins, glass cottages, or modern offices
🏗 Premium Exterior Construction
Galvanized steel structural frame with protective undercoat.
Cast-iron ISO 1161 compliant container pin holders.
Double-side fiber-reinforced plastic exterior (3mm).
Walls:
Standard: 75mm EPS + double side 0.5mm steel sandwich panel
Upgrade: 60mm EPS + 15mm outer cladding
Cladding: High-density rigid polyurethane insulation with aluminum steel sheet.
Fully weatherproof, corrosion-resistant, and built for long-term life.
🌡 Superior Insulation
Double vacuum insulated glass windows (5mm + 12mm + 5mm)
EPS + steel sandwich wall panels
Glass-wool insulated roofing
Energy-efficient heat and sound insulation
🏡 Internal Materials & Flooring
Fiber-cement floorboard with PVC surface covering.
Layered flooring system:
15mm MgO/BULU structural board.
2mm PVC vinyl finish.
Optional upgrade: 4mm SPC (Stone Plastic Composite) for premium durability.
Fire-resistant, moisture-resistant, termite-proof.
🔌 Electrical System (USA Ready)
High-grade wiring harness
Pre-installed lights, switches & sockets
Main wiring panel included
Compatible with USA 110V electrical systems
🍽️KITCHEN
- Luxury 20mm Quartz engineered stone countertop.
Sleek modular cabinetry with soft-close hinges.
Overhead storage cupboards included.
Double-bowl stainless steel sink with flip mixer (assembly may be required).
🚪 Doors & Windows
Certified 3C high-performance windows.
Double-sided vacuum insulated glass: 5mm + 12mm + 5mm.
Thermal & acoustic insulation ensures a quieter, cooler interior.
Aluminum alloy frame with reinforced rubber seals.
Reduced AC electricity consumption due to high insulation quality.
🚿 Plumbing System
All plumbing positioned on the exterior bathroom wall for easy maintenance.
Hot & cold pre-plumbed inlets for:
Kitchen sink
Bathroom basin
Toilet
Shower
Separate drain pipes for wastewater and greywater.
Pre-plumbed 50mm PVC drainage to a single outlet.
Ready for direct connection to USA plumbing systems.
⚠️ Delivery, Unloading & Installation
Delivery to your location is included.
However, unloading and on-site installation must be arranged by the customer.
A crane, forklift, or similar lifting equipment is required to safely unload the 20FT unit.
🛒 Order Your MOB WESTBROOK
1. Choose your layout (1–3 bedrooms)
2. Select available finishes
3. Contact customer care for any customizations
4. Place your order
5. Delivery to your location (customer handles unloading & installation)
A complete home — delivered fast and built exactly the way you need.
📞 Custom Layouts & Upgrades
For any custom changes — including layout modifications, extra bedrooms, flooring upgrades, window options, exterior cladding, or kitchen/bathroom upgrades — you must contact customer care for approval and pricing.
All customization requests are processed through our support team to ensure correct engineering, safety, and compatibility with the expandable structure.




































Mason Ridley –
Prefabia team helped us choose the right modular home for our land and budget. They understood exactly what we needed and got our dream home delivered directly to our site in Austin. The black modern exterior looks premium and stylish from every angle. Setup was quick, and utility connections were simple. Excellent experience from consultation to final placement. Interior layout is practical and comfortable. Exterior finish looks premium compared to many prefab homes we reviewed. Very happy overall.
Bennett Langford –
We purchased this for a backyard ADU and it exceeded expectations. Compact outside, but inside there was enough room for kitchen appliances, seating, and a bedroom setup. The dark exterior blends beautifully with modern landscaping. Delivery crane unload was smooth and fast. Excellent return on investment.
Logan Pierce –
This modular home looks even better in person than in photos. The matte black finish gives it a premium modern style, and the side windows bring in more light than expected. We installed it as a backyard guest house and neighbors keep asking where we got it. Interior feels larger than the outside suggests. Very satisfied with the purchase.
Trevor Maddox –
Excellent prefab for rental property use. It arrived in good condition and was placed on our prepared pad quickly. Windows and doors close tightly, and the structure feels sturdy. We already had interest from renters within the first week. Smart investment purchase.
Everett Holloway –
The final result is very attractive and functional. We had minor delays preparing the foundation blocks, so installation took longer than planned. Once positioned, everything aligned properly and doors opened smoothly. Interior space feels larger than expected. Good buy with proper site planning.
Declan Mercer –
The home arrived exactly as promised and looked even better in person. The textured cladding makes it feel more like a custom-built home than a prefab container. We use one side for a bedroom and the main area for living space. Utility hookups were straightforward. Great value overall.
Garrett Lawson –
Solid prefab option for anyone wanting quick housing. The windows provide good natural light and cross ventilation. Exterior texture gives it a custom appearance instead of plain metal siding. Needed a little landscaping after placement, but the home itself met expectations. Would recommend.
Ryan Whitmore –
Used this as a private office and studio space. The dark textured walls give it a professional appearance, and the entrance area feels modern. Electrical connection was straightforward for our contractor. Only reason for four stars is I wish I had ordered a larger porch option. Still very pleased.