20ft General Purpose (GP) Converted Staff Room / Amenity Unit
New Build / One-Trip Base Container with Custom Conversion
Design Intent: Engineered to provide a secure, comfortable, weather-proof, and accessible breakout or breakroom facility for remote sites, construction yards, or industrial operations, featuring integrated security fold-up access ramps.
2. Dimensions & Capacities
Parameter | Metric (SI) | Imperial |
External Length | 6,058 mm | 19 ft 10.5 in |
External Width | 2,438 mm | 8 ft 0 in |
External Height | 2,591 mm | 8 ft 6 in |
Internal Length | ~5,898 mm | 19 ft 4 in |
Internal Width | ~2,352 mm | 7 ft 9 in |
Internal Height | ~2,390 mm | 7 ft 10 in |
Personnel Door Opening | ~900 mm W x 2,050 mm H | 3 ft 0 in x 6 ft 8 in |
Internal Volume | ~33.1 $m^3$ | 1,169 $cu\ ft$ |
Tare Weight (Est.) | ~3,200 kg (Dependent on fit-out) | ~7,055 lbs |
Max Gross Weight (MGW) | 24,000 kg | 52,910 lbs |
3. Material & Structural Specifications
Steel Construction: Corrugated Corten A-grade weathering steel shell, structurally modified and reinforced around all cutouts for doors, windows, and ramp fixtures.
Frame & Corner Castings: ISO 1161 heavy-duty corner castings for standard twist-lock handling, crane lifting, and multi-modal transport.
Flooring: Heavy-duty marine-grade plywood overlaid with commercial-grade, slip-resistant vinyl sheet flooring (coved edges optional for easy washdown).
Insulation & Interior Lining: 50mm high-density thermal insulation (rockwool or polyurethane) behind clean, wipeable white-melamine or PVC wall and ceiling panels for optimal internal climate control.
4. Access, Security & Fold-Up Ramps
Primary Access: Heavy-duty steel personnel access (PA) door with weather seals, deadlock, and heavy-duty hardware.
Fold-Up Ramp System:
Heavy-duty, checker-plate steel or aluminum fold-up ramp mounted directly outside the personnel door.
Designed to fold flush up against the container wall and lock securely over the doorway to act as an anti-vandal security shutter when the unit is unoccupied or in transit.
Counterbalanced or gas-strut assisted for easy single-person deployment.
Windows: Secure, double-glazed sliding uPVC or aluminum windows fitted with external security mesh grills or steel security shutters.
5. Electrical & Comfort Infrastructure
Power Distribution: Internal electrical distribution board (DB) with RCD safety switches, main breaker, and an external industrial flush-mounted site inlet plug (e.g., 32A CEE form).
Lighting: Recessed or surface-mounted ceiling LED batten lights providing bright, even illumination.
Power Outlets: Multiple strategically placed weather-resistant or standard interior GPOs (general power outlets) for microwaves, kettles, phone charging, and refrigerators.
Climate Control: Reverse-cycle split-system air conditioner (heating and cooling) sized appropriately for a 20ft insulated volume.
Optional Kitchenette Provision: Provisioning for a compact kitchenette area (sink, base cabinet, water inlet/outlet stub-outs, and dedicated appliance circuits).
6. Logistics & Handling
Transport: Fully CSC-plated base container structure, transportable via standard container side-loaders, tilt-trays, or flatbed trucks.
Site Deployment: Plug-and-play setup requiring only external power connection and optional water/waste hookups for immediate site operational readiness.
