20FT Double Wing Expandable Granny Flat Prefab Modular Expandable House Australian Style Backyard Studio Guest Cabin Quick Installation Secondary Dwelling

20FT Double Wing Expandable Granny Flat Prefab Modular Expandable House Australian Style Backyard Studio Guest Cabin Quick Installation Secondary Dwelling. High-strength prefabricated light steel structure: Precision-engineered galvanized steel framing provides excellent structural stability, corrosion resistance and long-term durability for residential. Factory-prefabricated for efficient installation: Structural components are manufactured and prepared in the factory, reducing on-site construction work, installation time and labor requirements. Flexible layout and appearance customization: Building size, floor plan, exterior finishes, interior materials, doors and windows can be customized for different climates, budgets and applications. Turnkey integrated building solution: Optional kitchens, bathrooms, interior finishes, electrical systems, plumbing, furniture, air conditioning, solar power and energy storage are available. Customizable thermal and energy-saving performance: Insulated wall and roofing systems, thermal-break aluminum windows and Low-E insulated glass are available for hot or cold climates. Versatile solution for multiple applications: Suitable for resorts, hotels, vacation rentals, farm stays, guest houses, residential communities, offices and commercial development projects. Complete service from design to delivery: Our team supports floor plan development, structural design, material selection, manufacturing, export packaging and installation guidance. Strict factory quality control: Key structural components and finishing materials are inspected throughout production to ensure dimensional accuracy and consistent product quality. BIM-supported engineering coordination: Digital design and technical coordination help optimize building layouts, structural details, material quantities and project execution efficiency. Professional installation support: Detailed drawings, component identification, installation manuals, video guidance and remote technical assistance can be provided for overseas projects.