Expandable Granny Flat 40FT

Expandable Granny Flat 40FT

Our 40FT Expandable Granny Flat is perfect for Australian backyards. It’s a simple, space-saving secondary home for multi-generational living, guests or extra rental space. It folds small (11.8m×2.2m) for easy transport and expands to about 74㎡, with 3 bedrooms, 1 bathroom and a full kitchen. Made of strong galvanized steel, it meets Australian safety standards. It’s quick to install, portable and easy to maintain—no expensive, time-consuming traditional building needed.
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Description
Technical Parameters
product-1706-1279
  • Size: 40FT
  • Structure: High-strength galvanized steel frame
  • Design: interior layout can be customized
  • Size Options: 75㎡ expandable modular design
  • Service Life: more than 20 years
  • Warranty: 5 years structural warranty
  • Installation Time: within 3 hours

 

 

 

Features of Expandable Container House

 

 

  • ✅ Zero Rain Leakage Risk:Unlike competitors, our full top cover plate eliminates seepage, ensuring long-term outdoor durability.

 

  • 🌡️ All-Season Thermal Comfort:The roof skin + internal insulation forms a complete thermal barrier, blocking summer heat and reducing winter heat loss.

 

  • 💪 Reinforced Structural Safety:Integrated load-bearing roof boosts wind resistance and prevents collapse when fully expanded.

 

  • 🧹 Low-Maintenance & Debris-Resistant:The top plate keeps leaves, dust, and bird droppings out, minimizing cleaning work.

 

  • 🔇 Quiet, Noise-Reduced Interior:The extra roof layer dampens wind, rain, and traffic noise for a peaceful living space.

 

 

container office

container shop

 

Installation process

 

container cafe

 

Whole house customization.

container restaurantmodular housing project

product-1706-1279product-1440-1080temporary housing solutionemergency housing container

 

  application  scenarios

 

 

container worker dormitory

 Customer feedback

labor camp container

 

FAQ

 

Q:  Why Choose Us?

A:15+ years professional manufacturer of steel structure & container houses,and ISO 9001, CE, SGS certified, strict quality control,Fast production & delivery (10–15 days).

 

Q: What's the delivery time?

A:Normally 10–15 days after deposit and drawing confirmed.

 

 

 

Q: Is it customizable?

A:Yes. Layout, size, color, doors, windows, interior design, exterior wall style all can be customized.

 

 

 

Q: Can it withstand strong wind/earthquake?

A: Yes. Wind resistance 11 grade, earthquake resistance 8 degree.

 

 

 

 

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