
Engineered once, deployable many times.
An expandable office trailer is a road-deployable mobile office that opens to 7.5-8 m deployed width to accommodate full office workspace — workstations, meeting room, server closet, kitchenette and supporting facilities — in a single trailer that drives between deployment sites. structmod expandable office trailers serve construction project site offices needing weather-protected workspace for project teams, mining and oil & gas operations establishing field offices at exploration sites, event organisers running multi-event tours requiring consistent administrative capability, and disaster response coordinators establishing temporary command facilities.
Standard configurations provide approximately 60 m² of usable office floor area in deployed configuration, organised as 6-10 workstations in open or semi-private layout, one meeting room (typical 4-6 person capacity), server closet with rack space for IT equipment and structured cabling, kitchenette for staff refreshments, washroom with appropriate plumbing, and reception/visitor area at the trailer entrance. HVAC sized to office occupancy with appropriate fresh air provision, electrical infrastructure sized to office equipment load (typically 32A three-phase), structured cabling pre-installed for data and telephony, and lighting per office working environment standards.
structmod expandable office trailers serve sectors where road-deployable office capability matters — construction project camps (where the same trailer follows the project across multiple sites), mining and oil & gas exploration camps (rotating between exploration locations annually), mobile event coordination (corporate events, sporting tours, festival circuits), and disaster response coordination (deploying to event sites within hours of activation). Lead time is 8-12 weeks from contract signature. EN 1090 EXC-2 chassis construction, IEC 60364-1 commercial electrical, and DOT/E-mark vehicle homologation ensure regulatory compliance.
Typical deployment sequence
- Hour 0 — trailer arrives on tow vehicle, positioned and chocked
- Hour 0–1 — stabilizer jacks deployed, leveling verified
- Hour 1–2 — hydraulic walls or slide-outs extended where fitted
- Hour 2–3 — utility connections (power, water, wastewater)
- Hour 3–4 — functional test per FAT protocol
- Hour 4 — operational handover with user training
Spec sheet — STR-2509
| Overall length | 14.9 m · 48.9 ft |
|---|---|
| Width (transport) | 2.55 m |
| Width (deployed) | 7.50 m |
| Height (transport) | 2.80 m |
| Floor area (deployed) | 111.8 m² |
| Dry weight | 16.9 t |
| Chassis | EN 10025 S355JR hot-rolled steel · EN 1090 EXC-2 |
| Welding quality | EN ISO 3834-3 |
| Envelope | Sandwich panel, PIR core 80 mm · λ ≈ 0.023 W/(m·K) |
| Fire resistance | EI-30 · tested to EN 13501-2 |
| Floor | Marine plywood on EPDM · R-10 slip rating |
| Electrical | 400 V / 50 Hz · 3-phase · IEC 60364 compliant |
| HVAC | VRF multi-split · HEPA H13 (medical) |
| Operating range | −25 °C to +50 °C ambient |
| Wind rating | Designed for 140 km/h basic wind (EN 1991-1-4) |
| Transport | ISO 668 footprint · CSC plate eligible (container variants) |
| Setup time | 2–4 hours · 2-person crew |
Full drawings, calculation notes, DoP, O&M manual and FAT report included with every unit. Specs indicative — configurable to project requirements.