A portable container cabin is a new type of temporary building based on standardized steel containers. It uses a modular design, enabling fast assembly and expandable capacity. These cabins are widely used in agriculture, industry, and commercial projects. They combine factory prefabrication with on-site assembly, providing movable, multifunctional spaces for living, offices, storage, and commercial operations.
However, many customers are unclear about the differences in configuration, customization options, and actual user experience when selecting foldable houses. This article explains the configurations of walls, floors, doors, and windows, as well as customizable options from YG, to help you choose a highly efficient and durable portable container cabin.
I.Specifications and Performance Indicators of YG Portable Container Cabin
Standard Sizes
| 20FT Basic Characteristics | External dimension (mm) | W6260*L5900*H2480(Side 2270) |
| Internal dimension (mm) | W6160*L5560*H2240(Side 2150) | |
| Folded state (mm) | W2200*L5900*H2480 | |
| Total mass (kg) | 3000 | |
| 30FT Basic Characteristics | External dimension (mm) | W6160*L9000*H2480(Side 2180) |
| Internal dimension (mm) | W6200*L8660*H2240(Side 2060) | |
| Folded state (mm) | W2200*L9000*H2480 | |
| Total mass (kg) | 5000 | |
| 40FT Basic Characteristics | External dimension (mm) | W6160*L11800*H2480(Side2180) |
| Internal dimension (mm) | W6080*L11540*H2200(Side2060) | |
| Folded state (mm) | W2200*L11800*H2480 | |
| Total mass (kg) | 7000 |
Performance Indicators
- Wind Resistance Level: Can withstand up to Level 10 strong winds
- Seismic Intensity: ≥Level 7
- Fire Rating: ≥Grade B1
- Service Life: 15-20 years (reusable after repeated disassembly and assembly)
- Installation Efficiency: 2-3 people can complete installation within 3-7 days
II.Wall System: Balancing Insulation, Safety, and Aesthetics
The wall system is a core component that determines insulation, waterproofing, and durability. Common wall materials provided by YG include:
- EPS Foam Panel: Cost-effective, moderate insulation, easy to construct, standard density 14kg.
- Graphene EPS Panel: Black foam with better insulation than regular EPS, suitable for higher-performance customization.
- PU Panel: Excellent insulation, superior sealing, ideal for high-end expandable modular house customization.
- Rock Wool Panel: Made of basalt, not waterproof, easily absorbs water and crumbles, produces dust—long-term use is not recommended.
YG’s standard wall thickness is 65mm EPS, balancing insulation and ease of assembly. Panels thicker than 75mm may cause gaps, making sealing and waterproofing difficult.
For decorative exterior panels, YG offers:
- Metal embossed panel: Metal exterior, PU core, foil inner layer; visually attractive and waterproof.
- Second-generation Great Wall insulation aluminum panel: Matte vertical texture, enhances appearance, but not insulated; recommended with 50mm wall panels.
Interior walls usually use standard EPS panels in white or gray, suitable for bedrooms and bathrooms.
III. Floor System: Safety and Comfort
The floor consists of a base layer and a surface layer:
Base Layer Options:
- Calcium silicate board: Standard, strong, durable.
- Cement fiberglass board: Fiberglass reinforced, better adhesion.
- Construction plywood (no glue): Lightweight, suitable for foldable designs, requires fumigation.
Surface Layer Options:
- PVC floor: Glued with seam welding; lightweight, may crack under heavy load, suitable for basic use.
- SPC stone-plastic click floor: Locking installation, staggered 30–50cm seams, highly durable, but more complex installation and longer delivery.
YG ensures every floor layer is sturdy, safe, and comfortable for living.
IV. Door and Window System: Insulation and Waterproofing
Doors and windows affect airtightness, waterproofing, and insulation. Typical configurations:
- Broken bridge aluminum windows: Frame ≥5cm, double sealing, excellent insulation, and waterproofing.
- Ordinary aluminum windows: Narrow frames, single sealing, prone to drafts and leaks.
- KFC-style doors: No sealing strips, large gaps, poor sealing.
Window types include inward-opening, outward-opening, and bottom-hung; sliding windows are not recommended due to poor sealing. YG uses broken bridge aluminum for doors and windows to ensure comfort.
V. Optional Add-ons
- Sloped roof: Better heat resistance, ideal for hot climates, suitable for long-term use.
- Terrace/gazebo: Adds outdoor leisure space.
- Corrugated roof: Economical, waterproof, weather-resistant.
- Decorative corner trim: Neat edges for improved aesthetics.
VI. Customization Options
YG provides extensive customization for portable container cabins:
- Materials: Upgrade to EPS, graphene EPS, or PU panels.
- Exterior appearance: Metal embossed panels, aluminum textures, custom colors.
- Flooring: PVC or SPC click floors.
- Doors and windows: Broken bridge aluminum with custom styles and dimensions.
- Internal functions: Partitions, kitchens, bathrooms, and modular furniture.
YG offers a full-service customization process, ensuring safety, durability, and aesthetic and functional personalization.
If you are not satisfied with your custom-built house, or if the manufacturer is unable to build the house you want, please click this article: How to Customize a Satisfactory Expandable Container House. We have professionals who will teach you how to communicate effectively with the manufacturer.
VII. YG Advantages of Portable Container Cabin
- High-quality materials: All main walls, floors, and windows are strictly selected for durability and comfort.
- Modular design: Quick transport and assembly, reducing labor and installation time.
- Extensive customization: YG supports full customization of walls, floors, doors, windows, and functional modules.
- Overseas experience: 20+ years of export experience to 100+ countries, ensuring compliance with international standards.
- Complete after-sales support: Installation guidance, video tutorials, remote technical support, and maintenance.
- High cost-performance ratio: YG combines durability, functionality, and customization better than most competitors.
Foldable houses are more than temporary buildings—they are flexible, efficient, and expandable solutions. Through customization of walls, floors, doors, windows, exterior appearance, and functional modules, YG portable container cabins meet diverse needs—from construction site dormitories to hospitality projects, from emergency housing to commercial use.
By choosing YG, you gain not only standardized products but also safe, comfortable, durable, and fully customizable modular expandable homes. Wherever you are, YG provides professional advice and full support to help you implement and use your expandable shipping container house efficiently. For more information on prefab expandable house solutions or to get a quote, contact YG today, and we will design the perfect modular expandable home for you.