Modular cabin panels are lightweight prefabricated sandwich panel systems engineered for portable and relocatable buildings that undergo repeated assembly, disassembly, and crane-lift relocation throughout their service life. Designed for site offices, welfare units, guard booths, and security rooms, these panels prioritize low weight for two-person handling and rapid deployment on remote or constrained sites.
The EPS foam core keeps panel weight from 6.5 kg/m², enabling manual installation without heavy equipment on sites where crane access is limited. PU/PIR cores at 38-42 kg/m³ are available for cabins deployed in extreme climates where occupant comfort and energy efficiency take priority over minimum weight. Both core types maintain dimensional stability across repeated assembly and disassembly cycles without sagging, settling, or compression set.
Panels use tongue-and-groove interlock profiles with demountable mechanical fixings designed for 10+ relocation cycles without joint degradation. The connection hardware allows full cabin disassembly into flat components for transport on standard trucks, then reassembly at the new location in hours rather than days. Crane lifting points are integrated into the galvanized steel frame at certified positions for safe single-lift relocation of assembled units.
These modular cabin panels serve portable site offices, welfare cabins, ticket booths, parking booths, and compact operational facilities across construction, mining, events, and infrastructure sectors. The panel system withstands wind speeds of 102 km/h and snow loads of 80 kg/m², with steel skins and coatings resistant to UV degradation and weathering during prolonged outdoor service between relocations.
Your Trusted Manufacturer for Modular Cabin Panel
RaxPanel is a direct manufacturer of prefabricated sandwich panels based in Hebei, China, supplying modular cabin builders and portable accommodation providers in over 30 countries. Our engineering focus is on the hardware and structural details that determine relocation performance: rapid-assembly joint hardware is cycle-tested for repeated disassembly and reassembly, crane-lift attachment points are certified for safe single-lift handling of loaded cabins, and completed panel assemblies undergo vibration and shock testing that simulates truck transport over rough terrain.
With a daily production capacity exceeding 1,700 m², RaxPanel delivers consistent panel dimensions and joint tolerances at the volume required for fleet cabin programs. Every production batch is verified for skin-to-core bond strength and joint interlock engagement, ensuring cabins maintain weather-tight performance and structural integrity across their full relocation service life.
- Rapid-assembly joint hardware cycle-tested for 10+ disassembly and reassembly operations.
- Crane-lift attachment points certified for safe single-lift relocation of assembled cabin units.
- Vibration and shock testing simulating truck transport over rough-site access roads.
- EPS core from 6.5 kg/m² panel weight for two-person manual handling on remote sites.
| Parameter | Value |
|---|---|
| Skin Material | Color-coated galvanized steel |
| Skin Thickness | 0.35-0.5 mm |
| Core Material | EPS / PU / PIR |
| Core Density | EPS: 14-18 kg/m³; PU/PIR: 38-42 kg/m³ |
| Total Panel Thickness | 50 / 75 / 100 mm |
| Effective Width | 950 / 1000 mm |
| Panel Weight | From 6.5 kg/m² (50mm EPS) |
| Thermal Conductivity | EPS: 0.033-0.038 W/(m·K); PU/PIR: 0.022-0.026 W/(m·K) |
| Fire Rating | EPS: E; PU/PIR: B-s1,d0 |
| Wind Speed Resistance | 102 km/h |
| Snow Load Capacity | 80 kg/m² (0.78 kN/m²) |
| Seismic Resistance | Grade 8 |
| Relocation Cycles | 10+ assembly/disassembly cycles (joint hardware rated) |
| Joint Type | Tongue & Groove Interlock (demountable) |
| Surface Coating | PE / HDP in RAL colors |
| Process | Continuous high-pressure lamination |
| Applications | Portable cabins, site offices, welfare units, guard booths |
Modular Cabin Panel Selection Guide
Modular cabin panels serve site offices, welfare units, and portable classrooms that are relocated multiple times during their service life. Panel specification must balance thermal comfort, transport durability, and rapid assembly-disassembly cycles.
Pro Tip: Coordinate Joint Positions With Lifting Points
Modular cabin panels must align their tongue-and-groove joints with the steel frame’s lifting lugs to avoid site trimming. Share the crane lift plan with the panel supplier so joint positions and corner castings follow ISO 1161 geometry and clear the spreader beam.
Modular cabin panels must align their tongue-and-groove joints with the steel frame’s lifting lugs to avoid site trimming. Share the crane lift plan with the panel supplier so joint positions and corner castings follow ISO 1161 geometry and clear the spreader beam.
1. Panel construction for repeated relocation
Cabin panels endure 5-10 crane lifts and road transports during their life. Steel skins at 0.5-0.6 mm resist handling abrasion, while cam-lock joints allow tool-free assembly and disassembly without damaging the joint profile. Corner protectors and edge trim should be specified for units that travel on open-bed trucks.
2. Thermal comfort for occupied cabins
Site offices and welfare units are heated or cooled for full working shifts. A 60 mm PU panel achieves a U-value near 0.35 W/m²K, adequate for three-season use. For year-round occupancy in cold climates, 80-100 mm panels bring the U-value below 0.25 W/m²K and reduce running costs for the electric heaters typically installed in portable cabins.
3. Fire safety for site accommodation
Temporary workforce buildings often fall under the same fire code as permanent structures. PIR cores achieve B-s1,d0 per EN 13501-1, satisfying most site accommodation requirements. For cabins sleeping more than four occupants or stacked two-high, specify mineral wool core panels at A2-s1,d0 and confirm the rating with the local fire authority.
4. Floor panel and sub-frame integration
Cabin floor panels use 18 mm cement board or plywood over 50-75 mm high-density PU foam, bonded to a galvanised steel sub-frame. The sub-frame incorporates forklift pockets at the long sides for site handling. Floor-to-wall joints use a compression gasket and aluminium threshold strip to maintain the thermal envelope at the most trafficked junction.
Frequently Asked Questions
How quickly can a modular cabin be assembled on site?
A standard 6 x 3 m cabin assembles in 4-6 hours with two workers and a crane. Wall panels slot into the base frame, the roof panel lifts on, and cam-lock joints secure without power tools.
Can cabins be stacked two storeys high?
Yes, with a reinforced steel frame and corner posts rated for the additional load. Upper-floor panels use the same specification as ground-floor units, but the staircase penetration requires a factory-cut opening with sealed edge trim.
What maintenance do cabin panels require?
Inspect joint gaskets and cam-lock fittings annually. Replace compressed or cracked gaskets to maintain weathertightness. Touch up any scratched coatings to prevent corrosion, particularly at forklift pocket edges.
Are the panels compatible with standard cabin chassis?
Panels are manufactured to match the most common UK and European cabin frame dimensions. Provide the chassis drawing or internal clear measurements before ordering to ensure panel-to-frame compatibility.
Sandwich Panel Manufacturer
Custom Core & Skin • Tailored Dimensions