Creative Prefabricated Tiny House – 20FT Expandable Flat Top Model

The prefabricated tiny house market has transformed the way we approach compact, sustainable living. Our 20-foot flat top expandable model presents a practical yet refined option for those looking to embrace minimalism, flexibility, and freedom—all in a thoughtfully engineered structure not made from shipping containers.

🧱 STRUCTURAL DESIGN & BUILD QUALITY

This unit boasts a galvanized steel frame, known for its long-term durability and corrosion resistance. The foldable design allows for seamless expansion—from L5900×W2200×H2450mm (folded) to a generous L5900×W6420×H2450mm (expanded). The house stands on a reinforced base with a net weight of 3.1 tons and covers 38 square meters, offering ample living space for 2–4 people.

Main Frame Configuration:

• Top/Bottom Beams: 80×100×2.5mm galvanized square tube with 2.0mm wraps

• Side Rails: 80×140×3.0mm for extra strength

• Steel Columns: 80×100×3.0mm

• Folding Hinges: 130mm galvanized, engineered for repeated folding

• Corner & Edge Finishing: Includes skirting line, top corner line, corner wrap

The side wings are equally robust, built using 50×100×2.5mm and 40×80×1.5mm square tubing, offering seamless expansion support and lateral stability.

🛡️ SURFACE COATING & WEATHER RESISTANCE

Every part of the frame is treated with electrostatic spray powder coating, enhancing surface protection against UV, rust, and moisture. The roof includes:

• External Roof Panel: T50mm EPS color steel with waterproof membrane

• Internal Ceiling Panel: 200-type for insulation and aesthetics

Wall Panels:

• Side/Rear Walls: T65mm EPS sandwich panels

• Internal Partitions: T50mm EPS for effective insulation and lightweight durability

🧰 FLOORING SYSTEM

The main floor features a fireproof cement fiberboard (18mm thick) for stability, while the side wings utilize bamboo plywood (18mm thick). These materials are moisture-resistant, fire-retardant, and long-lasting, making them ideal for diverse climates and terrain conditions.

🚪 DOORS & WINDOWS

Designed with both safety and light in mind:

• Steel Single Door: 840×2030mm, secure and weather-sealed

• Plastic Steel Sliding Windows: 920×920mm, allows natural ventilation and light

These components offer a balance of security and comfort, ideal for both urban and rural applications.

⚡ ELECTRICAL SYSTEM CONFIGURATION

A complete, pre-installed electrical system supports up to 12KW of consumption, perfect for residential and light commercial uses.

Included Components:

• Breaker System: 32A leakage protector, voltage: 220V, 50Hz

• Sockets: International three-hole and five-hole variants

• Lighting: Bull brand flat panel (30×30) and central ceiling lights

• Switches: Double-open and single-key configurations

Wiring Layout:

• Incoming line: 6mm²

• A/C socket: 4mm²

• Regular socket: 2.5mm²

• Lighting: 1.5mm²

All systems comply with international electrical safety certifications and can be adapted based on regional requirements.

🧩 PARTS & ACCESSORIES INCLUDED

Every unit comes fully outfitted with essential accessories:

• Waterproof tape

• Structural adhesive and gun

• Sling for lifting

• Corner trim & skirting

This ensures on-site installation is fast, efficient, and requires minimal tools or labor.

🛠️ APPLICATIONS & USE CASES

This prefabricated tiny house fits a wide range of applications:

• 🏕️ Vacation Cabins: Easy to transport and set up in remote locations

• 🏠 Backyard Guest Houses: Expand your property utility without construction

• 🏢 Worksite Offices: Fast setup makes it ideal for temporary or mobile teams

• 🏡 Affordable Housing Solutions: Tackle housing shortages with efficient deployment

• 🧳 Mobile Business Units: Ideal for food stalls, salons, or mobile clinics

Its design caters to minimalists, outdoor enthusiasts, developers, and organizations looking for fast, scalable accommodation or workspace solutions.

🌱 ENVIRONMENTAL BENEFITS

Unlike traditional builds or reused shipping containers, our prefabricated tiny house is built from scratch using new galvanized components, eliminating the need for chemical decontamination. The use of EPS insulated panels reduces the reliance on HVAC systems, lowering your carbon footprint. Modular construction reduces waste during production and on-site installation.

🛒 EASY INSTALLATION & MAINTENANCE

Installation is plug-and-play. With pre-wired systems, fixed hinges, and modular design, it can be deployed in hours. Its low-maintenance exterior and durable structure make it ideal for long-term, worry-free use. Optional add-ons like solar panels or extra insulation can be integrated as needed.

🧾 PRODUCT MODEL SUMMARY