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20ft Flat Roof Expandable Prefab House with Covered Porch | Modern Modular Cabin

The 20ft Flat Roof Expandable Prefab House with Covered Porch is a modern modular building solution designed for residential, accommodation, office and commercial applications.
  • ZSJH

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Compared with a standard expandable house, this model features an integrated covered porch / veranda area, creating additional outdoor living space while giving the building a more complete residential appearance.

The house is built around a prefabricated steel structural system and can be customized with insulated wall panels, glass entrance doors, windows, flooring, electrical systems, sanitary facilities and different exterior finishes.

Its compact modular design makes it suitable for international transportation, while factory prefabrication helps reduce on-site construction work and shorten installation time.

modular house (3)

Key Features

1. Covered Porch Design

The front porch provides a sheltered outdoor area that can be used as an entrance platform, seating area, reception space or outdoor leisure zone.

This design is particularly suitable for residential cabins, resorts, campsites and guest accommodation.

2. Modern Flat Roof Appearance

The flat roof gives the building a clean and contemporary architectural style.

It works well with dark steel frames, wood-grain wall panels, white exterior panels and large glass doors.

3. Prefabricated Steel Structure

The main structural system uses a steel frame that supports the roof, wall panels, doors, windows and porch structure.

Factory fabrication helps improve dimensional consistency and simplifies project installation.

4. Flexible Interior Layout

The internal space can be configured according to the project application.

Typical options include:

  • Bedroom

  • Living room

  • Bathroom

  • Kitchen

  • Office

  • Reception area

  • Guest room

  • Studio

  • Multi-purpose room

5. Custom Exterior Finishes

Different exterior appearances can be selected, including:

  • White metal panels

  • Gray exterior panels

  • Dark charcoal finishes

  • Wood-grain decorative panels

  • Mixed metal and wood-effect finishes

6. Large Door and Window Options

Glass entrance doors and larger windows can be incorporated to improve natural lighting and create a more open interior.

Different window styles can also be selected according to the destination market.

7. Fast Project Deployment

A large portion of the structure and interior work can be completed in the factory before shipment.

This reduces the amount of traditional construction required at the installation site.

Interior View of Modular Integrated House (10)

Typical Product Specifications

Item Typical Configuration
Product Type Expandable Prefab House
Model 20ft Series
Roof Type Flat Roof
Main Structure Prefabricated Steel Frame
Porch Covered Front Porch / Veranda
Exterior Wall Insulated Sandwich Panel
Exterior Finish Metal / Wood-Grain / Customized
Interior Wall Decorative Wall Panel
Insulation EPS / Rock Wool / PU Optional
Flooring PVC / SPC / Composite Flooring Optional
Windows Aluminum Alloy / PVC Optional
Entrance Door Glass / Steel / Aluminum Door
Interior Partition Customized
Electrical System Optional / Customized
Plumbing Optional
Bathroom Optional
Kitchen Optional
Lighting Optional
Exterior Color Customized
Layout Customized
Installation Modular / Expandable Assembly
Export Packing Available

modular buildings (1)

Exterior Design

This modular house can be adapted to different architectural styles.

For a modern appearance, dark steel frames can be combined with white or gray wall panels.

For tourism or residential projects, wood-grain decorative panels can create a warmer and more natural visual effect.

The combination of glass doors, windows, porch structures and decorative cladding helps the building look more like a finished residence rather than a traditional temporary container unit.

Customization Service

ZSJH can customize the building according to project requirements.

Available customization includes:

Overall layout, steel structure, exterior color, wall panels, insulation, doors, windows, porch dimensions, railings, flooring, bathroom, kitchen, electrical system, plumbing and interior decoration.

Customers can provide drawings, sketches, floor plans or reference pictures for project evaluation.

Suitable Buyers

This product is suitable for:

Prefab house importers, modular building distributors, construction contractors, resort developers, campsite operators, accommodation project owners, rental companies, infrastructure contractors, building material wholesalers and property developers.


FAQ

1. Can the porch size be customized?

Yes. The porch depth, width, railing style, steps and overall configuration can be adjusted according to project requirements.

2. Can the exterior wood-grain finish be customized?

Yes. Wood-grain panels and other decorative exterior finishes can be selected depending on the required style.

3. Can a bathroom and kitchen be included?

Yes. Bathroom, toilet, shower, washbasin, kitchen cabinets, sink and related plumbing can be added.

4. Can the interior layout be changed?

Yes. Internal partitions and room arrangements can be customized according to residential, office or accommodation use.

5. Can different window styles be supplied?

Yes. Window size, frame material and opening style can be selected according to the project requirements.

6. Is this model suitable for resorts?

Yes. The covered porch, decorative exterior and flexible interior layout make it suitable for holiday cabins and tourism accommodation.

Get a Customized Quote

Send us your required quantity, destination country, application, preferred layout, porch design and exterior style.

We can prepare a suitable modular building solution and quotation for your project.


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