P3
Expandable container house
One room, roughly twice the floor area once expanded

Overview
Side or dual expansion on site increases the floor area — offices, meeting rooms, exhibition and camp command posts.
For one wide room — camp command, meeting, clinic. If a compact fixed footprint suits the site better, compare P2; if the room must be crane-lifted as a finished box, compare P4.
Technical data
| Parameter | Typical value | Notes |
|---|---|---|
| Structure | Steel frame + fold/slide + sandwich | Galvanized |
| Envelope | 50–75 mm sandwich typical | EPS / PU; rockwool A-grade |
| Expanded width | ~5800–6400 mm | Single or dual side |
| Waterproofing | Expansion joints per drawing | Critical detail |
| Deploy time | 1–4 h/unit typical | Pad + crew ready |
| Collapsed width | ~2400–2500 mm | ISO width class |
Structure & envelope
Primary steel Q235/Q345 galvanized. Expansion uses hinged or sliding wall/roof modules with locking after deploy. Floor may be integrated or staged. Seal flashings at expansion joints are mandatory per signed detail.
Typical dimensions
| State | Typical | Use |
|---|---|---|
| Expanded | ~5.8–6.4 m W | Office + meeting |
| Command / clinic | Custom interior zones | Camp HQ, triage |
| Collapsed | ~2.4 m W × ~6 m L | Collapsed envelope |
Lead time
20–35 days after drawing sign-off. Mechanism drawings often need 1–2 revision rounds.
Installation
Level pad → position collapsed unit → expand sides → lock → seal joints → MEP hook-up → interior. Buyer: foundation/pad, cranage, power/water to interface.
Selection guide
| Criteria | P3 Expandable | P2 Folding | P1 Quick-assembly |
|---|---|---|---|
| Floor area gain | High on site | Fixed ~20 ft | Flexible layout |
| Command / showroom | Primary | Secondary | Possible |
| Deploy speed | Hours | Minutes | Half day |
Request specification
| Field | Description |
|---|---|
| Quantity | Units |
| Expansion type | Single / dual side |
| Interior use | Office / meeting / clinic / command |
| Core & voltage | EPS / PU or rockwool A-grade; 110–240 V |
Get a quote
Submit quantity, expansion type and interior use for mechanism options and a configuration summary.
Typical specifications for reference only. Final dimensions, materials and quantities per signed drawings and order.