Container house panels are steel-skinned sandwich panel systems engineered for shipping container conversions, expandable homes, and flat-pack modular dwellings. Designed to fit ISO container envelope dimensions, these panels integrate with standard corner casting attachment points and withstand the stacking loads, transport vibration, and handling stresses of truck and ocean freight logistics.
The PU/PIR polyurethane core provides thermal conductivity as low as 0.022-0.026 W/(m·K), minimizing heat transfer through the thin wall sections typical of container-format buildings. This addresses the thermal bridging challenge at steel frame junctions where uninsulated corners and rails would otherwise create condensation paths. Rock wool and EPS cores are available for projects with specific compliance or budget requirements.
Panels are manufactured to 40HQ container loading dimensions with lengths up to 11.8m, enabling full-container shipment without oversize freight charges. Flat-pack configurations reduce shipping volume by up to 60% compared to assembled units, with tongue-and-groove and cam-lock joint profiles designed for rapid on-site assembly using hand tools and minimal labor.
These container house panels serve shipping container homes, expandable granny flats, relocatable dwellings, and modular housing projects worldwide. The panel system maintains weather-tight integrity under wind loads and repeated transport cycles, with steel skins and coatings formulated for prolonged outdoor exposure in coastal and tropical climates.
Your Trusted Manufacturer for Container House Panel
RaxPanel is a direct manufacturer of steel-skinned sandwich panels based in Hebei, China, supplying container house builders and modular housing developers in over 30 countries. Our production process is built around the structural demands of container-format construction: every steel frame weld is inspected for penetration and continuity, corner casting attachment points are load-tested to verify lifting and stacking capacity, and panel edges are sealed to container-grade weatherproofing standards.
With a daily production capacity exceeding 1,700 m², RaxPanel delivers consistent bonding strength and dimensional accuracy at project scale. Panels are manufactured to ISO container envelope tolerances, ensuring compatibility with standard corner fittings, twist-lock stacking systems, and flat-pack transport configurations used by container house builders worldwide.
- Steel frame weld inspection and corner casting load testing for stacking and lifting verification.
- Container-grade edge sealing against wind-driven rain and transport moisture exposure.
- PU/PIR core at 38-42 kg/m³ with thermal conductivity of 0.022-0.026 W/(m·K).
- Panels cut to 40HQ loading dimensions with flat-pack configurations for volume-efficient shipping.
| Параметр | Значение |
|---|---|
| Материал внешней оболочки | Color-coated galvanized steel / Aluzinc AZ150 |
| Skin Thickness | 0.4-0.6 mm |
| Основной материал | PU / PIR / Rock Wool / EPS |
| Плотность ядра | PU/PIR: 38-42 kg/m³; Rock Wool: 80-120 kg/m³; EPS: 14-18 kg/m³ |
| Total Panel Thickness | 50 / 75 / 100 / 120 / 150 / 200 mm |
| Effective Width | 950 / 1000 / 1150 mm |
| Max Length | 11.8 m (40HQ container loading) |
| Теплопроводность | PU/PIR: 0.022-0.026 W/(m·K); Rock Wool: 0.038-0.045 W/(m·K); EPS: 0.033-0.038 W/(m·K) |
| Группа горючести | Rock Wool: A1; PIR: B-s1,d0; EPS: E |
| Wind Load Resistance | 0.6-1.5 kPa |
| Stacking Load | Up to 3 units (per ISO corner casting rating) |
| Тип стыка | Tongue & Groove / Cam-lock |
| Покрытие поверхности | PE / HDP / PVDF in RAL colors |
| Process | Continuous high-pressure lamination / foaming |
| Области применения | Container houses, expandable homes, flat-pack dwellings |
| Срок службы | 15+ years |
Container House Panel Engineering Guide
Container house panels must integrate with ISO steel frames, survive ocean freight, and provide a habitable thermal envelope in climates ranging from -30°C to +50°C. This guide covers the structural, thermal, and logistics decisions specific to modular container construction.
Pro Tip: Confirm Panel Dimensions Against the Frame Drawing
Container house panels must slot into U-channels welded to the ISO frame with 2-3 mm clearance per side. Always verify the frame’s internal clear dimensions before panel fabrication, accounting for weld shrinkage and galvanising buildup on the channel lips.
Container house panels must slot into U-channels welded to the ISO frame with 2-3 mm clearance per side. Always verify the frame’s internal clear dimensions before panel fabrication, accounting for weld shrinkage and galvanising buildup on the channel lips.
1. Integration with ISO corner castings and steel frames
The structural steel frame uses 2.0-3.0 mm galvanized sections welded at corners, with twist-lock compatible fittings per ISO 1161 for crane lifting and stacking. Panels slot into U-channel rails welded to the frame and lock via cam-lock or tongue-and-groove joints. This connection transfers wind and stacking loads through the steel frame rather than the panel skins, keeping the sandwich panels in pure compression and shear.
2. Thermal bridging and insulation continuity
Steel container frames conduct heat 800 times faster than insulation, creating cold bridges at corners, rails, and door frames. PU/PIR cores at 0.022-0.026 W/(m·K) cover all flat surfaces, while thermal-break strips at frame junctions reduce linear heat loss. A 75 mm PU panel achieves U-values below 0.35 W/(m²·K), cutting thermal bridging losses by 70% compared to uninsulated steel sections.
3. Flat-pack shipping and on-site assembly
Flat-Pack Logistics Summary:
- Wall, roof, and floor panels stack inside a single 40HQ container
- Shipping volume reduced by up to 60% versus assembled units
- Maximum panel length 11.8 m to fit ISO internal dimensions
- Two workers assemble a standard 20 ft unit envelope in 1-2 days
4. Stacking loads and structural design
ISO corner castings support vertical loads of up to 192 tonnes for ship stacking. For container houses, practical stacking is 2-3 units high. The steel frame carries these loads through corner posts, not through the sandwich panels. However, panels must resist lateral racking forces at each floor level. Wind load resistance of 0.6-1.5 kPa and seismic grade 8 ratings ensure the panel envelope remains intact under combined loading.
5. Skin coatings for ocean freight and coastal deployment
Aluzinc AZ150 substrates provide 3-6 times the corrosion resistance of standard galvanized steel. PVDF coatings resist UV chalking and colour fade for 20+ year exterior exposure. Panel edges are sealed with container-grade gaskets at joints to prevent moisture ingress during ocean transit. Skin thickness of 0.4-0.6 mm resists denting from handling and lashing without adding excessive weight.
Часто задаваемые вопросы
How many container house units fit in one shipping container?
A standard 40HQ container carries the flat-pack components for 4-6 units of a 20 ft container house, including all wall, roof, and floor panels plus steel frame sections.
Can container house panels be replaced after damage?
Yes. Individual panels unbolt from the U-channel rails and slide out for replacement. Keep a spare set of gaskets and cam-lock fittings on site for rapid repair.
What insulation thickness is recommended for cold climates?
For winter temperatures below -20°C, specify 100 mm PU or PIR panels with sealed cam-lock joints. Add thermal-break strips at all steel frame contact points to prevent condensation on interior surfaces.
Do container houses meet building codes?
Container houses must comply with the local building code for temporary or permanent structures. Panels with EN 13501-1 fire classification and documented U-values satisfy most European and Middle Eastern regulatory frameworks.
Производитель сэндвич-панелей
Индивидуальный сердечник и оболочка • Персонализированные размеры