• 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home

40ft Modular Granny Flat | Foldable Prefab Home

YJD’s 40ft modular granny flat is a foldable expandable home designed to ship in a compact configuration and open into a wider living space on site. Review the reference dimensions, floor-plan options, structure, and packing details, then confirm the exact specification and supply scope for your project.
Size:
20FT
30FT
40FT
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home
  • 40ft Modular Granny Flat | Foldable Prefab Home

Description

Looking for a modular granny flat with a foldable, expandable design? This 40ft model is transported in a folded configuration and opens on site to provide a wider footprint. The product images show a factory-built unit with interior areas that can be planned for granny-flat, guest accommodation, or other project requirements.

Layout, dimensions, materials, interior fit-out, and delivery scope depend on the selected configuration. Review the model-specific drawing and quotation before ordering.

How the 40ft Modular Granny Flat Expands

The folding structure is designed to reduce the unit’s width during transport. At the destination, its expandable sections open to create a larger usable interior. Before delivery, confirm site access, unloading arrangements, required operating clearance, and the installation steps for this model.

Folding and expansion process for a modular granny flat
Folding and expansion process reference. Confirm the procedure for the exact 40ft configuration.

40ft Reference Specifications

The following figures are saved reference data for the 40ft expandable house model family. Verify final dimensions and weight against the approved drawing for this product.

Specification 40ft reference
Expanded external dimensions 11,800 × 6,270 × 2,480 mm
Folded dimensions 11,800 × 2,200 × 2,480 mm
Reference weight Approx. 5,000 kg
Floor plan Confirm the selected layout and room arrangement

These are model-family reference figures, not a substitute for the product-specific drawing. Confirm the dimensions, weight, structure, room layout, and included components for the quoted unit before purchase.

Floor Plan and Size Reference

Floor-plan options should be reviewed against the intended use, number of occupants, furniture arrangement, and site requirements. The size comparison image is a general reference; request the drawing for this 40ft modular granny flat to confirm the actual room dimensions and layout.

Expandable modular house floor plan and size comparison
Floor-plan and size comparison reference. Ask for the model-specific 40ft drawing.

Structure and Exterior Options

Structural components and exterior features should be verified for the selected configuration. Discuss available cladding, doors, windows, insulation, roof details, and optional exterior additions with the factory. A portable granny flat project also requires transport and site planning based on the final dimensions.

Structural frame and components reference for an expandable granny flat
Structural component reference. Confirm materials and specifications for the ordered model.
Exterior overview of an expandable modular granny flat
Exterior overview reference for an expandable modular home.

Transport and Packing

A foldable granny flat is shipped in its designated transport configuration. Confirm packing protection, loading method, shipment dimensions, unloading equipment, route access, and delivery terms with the supplier. The packing image below is a reference; verify that the final packing plan applies to the 40ft unit.

Protective packing reference for an expandable modular home
Protective packing reference. Confirm packing and loading details for the selected 40ft model.

Video: Expandable House

Granny Flat Kit and ADU Considerations

Buyers searching for a granny flat kit should confirm whether the quotation is for a factory-built unit, a partially fitted house, or separately supplied components, and what work remains at the destination. The product’s suitability as a granny flat ADU depends on local planning, building, utility, transport, and installation requirements.

Terms such as “ADU” and “granny flat” can have specific meanings under local rules. This product description does not represent local permitting, code approval, or certification. Check requirements with the relevant authorities and qualified local professionals.

Quotation and Ordering

The price of a modular granny flat depends on the selected layout, materials, doors and windows, insulation, interior options, packing, and destination shipping. Share your destination, intended use, preferred floor plan, and required options to request a project-specific quotation.

Before production, confirm the approved drawing, folded and expanded dimensions, component list, production scope, packing method, installation responsibilities, and shipping terms in writing.

Frequently Asked Questions

What are the reference dimensions of this 40ft model?

The reference expanded dimensions are 11,800 × 6,270 × 2,480 mm, and the folded dimensions are 11,800 × 2,200 × 2,480 mm. Confirm final dimensions for the selected configuration in its approved drawing.

Is this a portable granny flat?

It is an expandable modular unit designed for transport in a folded configuration. Confirm the transport method, unloading requirements, and destination installation scope for your project.

Does the product include a kitchen and bathroom?

The images show interior references, but the supplied items depend on the selected configuration. Request a written list of included fixtures, cabinets, plumbing, electrical items, and finishes.

Can it be used as a backyard granny flat?

Intended use depends on site conditions and local requirements. Check zoning, permits, building rules, utility connections, and access with the relevant local authorities before ordering.

Related Information

Explore custom prefabricated house options, YJD quality information, and the container-house import guide.

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