External Dimensions
20.8 ft (W) × 38.9 ft (L) × 8.14 ft (H)
Width: 6320 mm → 20 ft 8 in
Length: 11800 mm → 38 ft 9 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: 6140 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) × 38.9 ft (L) × 8.14 ft (H)
Width: 2200 mm → 7 ft 2 in
Length: 11800 mm → 38 ft 9 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. 5,800-6,500 kg → 12,786-14,330 lbs
PORCH SLATE – 40FT Expandable Modular Home
Elegant • Minimal • Practical Living
PORCH SLATE is a 40FT expandable modular home designed for use as an accessory dwelling unit (ADU) or residential structure, subject to local zoning approval. It features an grey exterior with white structural framing, a covered front white porch, and a central glazed entry consistent with U.S. residential design norms.
PORCH SLATE – 40FT Expandable Modular Home
Elegant • Minimal • Practical Living
PORCH SLATE is a 40FT expandable modular home designed for use as an accessory dwelling unit (ADU) or residential structure, subject to local zoning approval. It features an grey exterior with white structural framing, a covered front white porch, and a central glazed entry consistent with U.S. residential design norms.
When expanded, the unit provides a floor area comparable to two 20FT modules, supporting multi-room layouts for living, sleeping, or home office use. The home is factory-built and delivered fully prefabricated with integrated flooring, electrical wiring, plumbing, insulation, wall systems, windows, and ceiling finishes. Once placed on an approved foundation and connected to utilities, it expands onsite into a complete dwelling within hours.
✨ Key Highlights
Sleek Grey-finish exterior for a modern, minimal look
Expandable 40FT home — setup within hours
Pre-installed electrical, plumbing, flooring, ceiling, and fixtures
Durable insulated wall panels for thermal & acoustic comfort
Large central sliding glass door for easy access and bright interiors
Perfect for living, guest units, offices, studios, or vacation rentals
🏡 Premium Interior
Spacious open-plan design
Smooth wall finish & clean lines
Ideal for custom bedroom, studio, or office layouts
Superior light flow through windows and glass front
🏗 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 grey water.
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 40FT unit.
🛒 Order Your PORCH SLATE
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.




















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