2 Story ADU | Expandable Manufactured Home for Backyard Apartments

  • Story ADU: built from two stacked expandable prefab units
  • Single unit size: W6320 × L5900 × H2480 mm
  • Folded size: W2200 × L5900 × H2480 mm
  • Total floor area: approx. 74㎡, subject to final layout
  • Structure: two-level design with steel stairs and balcony access
  • MOQ: one container
  • Lead time: 15–30 days after order confirmation
  • Supply: China factory direct for importers and project buyers
  • Customization: layout, doors, windows, bathroom, kitchen, color and height
  • Material: galvanized steel frame with EPS sandwich panels
  • Options: 50 / 75 / 100mm panels, PU or rock wool insulation
  • Certification support: CE, SAA, fire safety, RoHS, asbestos-free, CSA, SGS available as required

Expandable ADU Manufactured Home Solution

This product can also be promoted as an adu manufactured home for buyers who prefer a factory-built housing solution. The main structure is prepared before shipment, and the expandable design helps the unit create more interior space after arrival.

Key Specifications of 2 Story ADU

Item Details
Product Type Two-level expandable prefab ADU
Structure Two stacked expandable prefab house units
Main Unit 20ft expandable container house
Single Unit Expanded Size W6320 × L5900 × H2480 mm
Single Unit Folded Size W2200 × L5900 × H2480 mm
Single Unit Floor Area Approx. 37㎡
Estimated Total Floor Area Approx. 74㎡, subject to final layout confirmation
Frame Material Galvanized steel frame, Q235 / Q345
Wall Panel EPS sandwich panel
Roof System Sandwich panel with decorative ceiling
Internal Height Approx. 2200 mm, final height can be discussed
Staircase Exterior steel staircase
Upper Floor Access Balcony / platform access
Electrical System Region-specific wiring and customized circuit breakers
Custom Options Layout, doors, windows, bathroom, kitchen, wall panels, color, height and electrical system
Optional Insulation 50 / 75 / 100mm panels, PU core or rock wool insulation
Application Backyard ADU, rental apartment, guest house, family extension, resort room, prefab housing project
Lead Time 15–30 days after order confirmation
Price Based on final layout, configuration, quantity and destination

Available Expandable Container House Sizes

Sunfine can supply different expandable container house sizes for different project requirements. The 10ft model is suitable for compact applications, while larger models can be selected for residential projects, rental units, site accommodation, resort rooms, and commercial housing solutions.

Model
Suitable Applications
Recommended Buyer Type
Backyard office, guest room, small site office, sample display unit, compact temporary room
Buyers needing compact space, market testing, or small project use
Standard living space, granny flat, rental unit, temporary accommodation
Importers, distributors, rental companies, project buyers
Larger temporary housing, project accommodation, family living layout
Contractors, community builders, housing suppliers
Larger residential layout, multi-room housing, resort accommodation, commercial project use
Bulk buyers, resort operators, construction camp suppliers

If buyers need a larger living area, they can compare this compact model with the 20ft expandable container house, 30ft expandable container house, and 40ft expandable container house options.

Custom Options for Project Buyers

Every project has different requirements. Sunfine can discuss customization based on buyer needs, order quantity, shipment plan, and local market expectations.

Custom options may include:

  • Exterior wall color
  • Interior wall finish
  • Door type and position
  • Window size and layout
  • Roof design
  • Flooring material
  • Bathroom or kitchen planning
  • Electrical wiring standard
  • Circuit breaker configuration
  • Interior partition layout
  • Height adjustment

Certifications for 2 Story ADU Projects

Sunfine can provide related certification documents and test reports for 2 story adu projects according to buyer requirements, product configuration, and destination market standards.

Available reference documents for 2 story adu projects may include:

  • CE Certificate
  • SAA Certificate
  • Fire Safety & RoHS Compliance
  • Asbestos-Free Certificate for EPS Board
  • Asbestos-Free Certificate for MGO Board
  • CSA Certificate
  • Australian Standard AS Pass Report
  • SGS Verification

These documents help importers, distributors, contractors, and project buyers review 2 story adu compliance before bulk purchasing, customs clearance, local resale, or project submission.

Final applicable certificates for each 2 story adu should be confirmed according to the selected product model, materials, electrical standard, destination country, and local approval requirements.

SUNFINE certifications for 2 story adu and expandable prefab house projects

Applications

01

Backyard ADU

This product is suitable for adu backyard projects where buyers need additional living space behind an existing home. It can be used as a guest house, family room, rental unit, or private living space.

02

Rental ADU Apartment

The two-level structure is suitable for adu apartments where the buyer wants a more complete living unit. The layout can be planned with bedrooms, bathroom, kitchen area, and living space according to the final drawing.

03

Luxury Guest House

With upgraded exterior panels, glass doors, windows, stairs, and platform design, this model can be used as a luxury adu for resorts, private properties, or guest accommodation projects.

04

Manufactured Housing Supply

For distributors and contractors, this 2 story adu can be developed as an adu manufactured home product line for customers looking for factory-built housing with customizable layouts.

Frequently Asked Questions

What is an ADU?

An ADU, or accessory dwelling unit, is a secondary housing unit built on the same property as a main house. It can be used as a guest house, rental unit, family living space, backyard apartment, or independent small home.

What is a 2 story ADU?

A 2 story adu is a two-level accessory dwelling unit. This product uses two expandable prefab house units stacked together to create a compact vertical living space with upper and lower floors.

Is this product made from expandable container houses?

Yes. This model is based on two 20ft expandable container house units. Each unit is transported in a folded form and expanded on site before the two-level structure is completed.

Can the ADU layouts be customized?

Yes. adu layouts can be customized according to project needs, including bedroom quantity, bathroom location, kitchen position, windows, doors, stairs, and interior partitions.

Can this be used as a luxury ADU?

Yes. With wood-grain exterior panels, steel stairs, glass doors, windows, and a two-level design, this product can be positioned as a luxury adu for backyard housing, resort accommodation, or rental projects.

Is it suitable for ADU apartments?

Yes. The two-level structure can be planned as adu apartments for rental housing, guest accommodation, or compact residential use. The final apartment layout should be confirmed by drawing.

Can this be used in a backyard?

Yes. This product can be used for an adu backyard project if the site has enough space for unloading, lifting, installation, foundation work, and local approval.

What information is needed before quotation?

Buyers should provide the target layout, quantity, destination country, electrical standard, bathroom and kitchen requirements, exterior style, and site use. Final price depends on configuration, drawing, quantity, and shipping details.