Demountable Flat Pack Container House: B2B Engineering & Procurement Guide
Product Overview & Technical Architecture
Demountable flat pack container houses are engineered for rapid multi-site deployment and optimized ocean freight logistics. Unlike welded container structures, these units are shipped in flat-pack configurations-allowing multiple units to be stacked within standard 40'HQ shipping containers-and assembled on-site using high-tensile bolted connections without structural welding.
Standard Base Unit Dimensions: L 6058 mm x W 2438 mm x H 2896 mm (External)
Clear Internal Height: 2530 mm (Floor to Ceiling)
Modular Interconnectivity: Fully modular; stackable up to 3 stories high; expandable horizontally without structural limitations.
Core Technical Specifications
Clear engineering data governs structural safety and procurement compliance. The table below outlines standard factory baseline specs:
|
Technical Parameter |
Standard Specification |
Compliance / Testing Standard |
|
Primary Steel Frame |
Cold-formed Q355B / Q235B galvanized structural steel (Thickness: 2.5mm - 3.0mm) |
ISO 3834 / EN 1090 |
|
Surface Treatment |
Hot-dip galvanized base + electrostatic polyester powder coating (Thickness >= 80 um) |
ASTM A123 / ISO 12944 (C3/C4 environment) |
|
Roof Snow Load |
1.5 kN/m2 (Upgradable to 2.5 kN/m2 for alpine regions) |
EN 1991-1-3 |
|
Floor Live Load |
2.0 kN/m2 (Standard office/residential configuration) |
EN 1991-1-1 |
|
Wind Load Resistance |
Up to 120 km/h (Equivalent to Wind Grade 12, depending on anchoring) |
AS/NZS 1170.2 |
|
Seismic Rating |
Designed to withstand Richter Magnitude 8 |
GB 50011 / UBC 97 |
|
Wall Panel Insulation |
50mm / 75mm / 100mm Rockwool Sandwich Panel (Density: 120 kg/m3) |
Grade A1 Non-combustible |
|
Roof Insulation |
100mm Glasswool blanket + 0.4mm corrugated steel sheet + PVC ceiling |
Thermal Conductivity Lambda <= 0.038 W/m.K |
|
Floor Construction |
18mm Magnesium Oxide (MGO) board + 2.0mm homogeneous PVC vinyl flooring |
Formaldehyde-free (E0 grade) |
Product Selection Guide
Selecting the correct specification depends on regional climate profiles, utility requirements, and project life cycles:
Standard Climate Configuration (Temperate / Moderate Zones):
Configuration: 50mm rockwool walls, single-glazed PVC windows, standard frame thickness (2.5mm). Suitable for standard construction site offices and temporary storage.
Extreme Weather Configuration (Arctic / High-Wind Zones):
Configuration: 75mm or 100mm PU (Polyurethane) or Rockwool panels, double-glazed argon-filled thermal break aluminum windows, reinforced corner posts (3.0mm Q355B), and added perimeter roof insulation. Designed for oilfield and mining camps operating between -40C and +50C.
Multi-Story Configuration (Stacked Camps & Offices):
Configuration: Integrated corner casting blocks designed for 3-story vertical stacking, heavy-duty floor cross-beams to eliminate deflection, and external staircase modules meeting commercial egress codes.
Typical Application Scenarios
Remote Mining & Oilfield Camps: Modular housing units configured into self-contained dormitories, mess halls, and clinic modules, deployed via flatbed trucks to unpaved access sites.
Infrastructure Construction Sites: Rapidly deployable site offices, meeting rooms, and security guard stations that can be disassembled and relocated to subsequent project phases.
Municipal Emergency & Disaster Relief: Pre-engineered medical triage units, temporary schools, and housing units designed for immediate deployment following natural disasters.
Commercial Pop-up Hubs: Multi-unit modular retail spaces, ticketing booths, and regional sales offices requiring rapid aesthetic finishes.
Manufacturing, Materials & Quality Control
Structural integrity originates at the raw material stage and is validated through rigorous internal and third-party testing protocols.
Steel Sourcing & Tolerances: We utilize primary steel mills (e.g., Baosteel/Ansteel) meeting strict yield strength criteria. Laser-cutting and CNC bending machines maintain structural component tolerances within +/- 0.5 mm.
Welding Standards: Structural welding is executed by certified personnel holding AWS D1.1 or ISO 9606 qualifications, utilizing gas-metal arc welding (GMAW) processes.
Corrosion Protection Process:
Mechanical grit blasting to Sa 2.5 surface cleanliness.
Immediate application of epoxy zinc-rich primer.
Electrostatic polyester powder coat curing at 200C for optimal salt-spray resistance (passing 1000-hour ASTM B117 tests).
Factory Pre-Assembly Testing: Every production batch undergoes a trial assembly of random units to verify corner-post squareness, bolt-hole alignment, and door/window operational clearance.
Logistics & Shipping Efficiency
Flat-pack optimization directly reduces total delivered project cost by minimizing ocean freight volume.
Shipping Volume: 4 to 6 base units pack into a single 40'HQ shipping container, saving up to 75% on maritime freight compared to pre-assembled volumetric containers.
Unloading Requirements: Flat-pack bundles feature designated forklift pockets and crane lifting lugs. Offloading requires a standard 3-ton forklift or light crane; no heavy machinery is required on site.
Labor & Assembly Time: A standard 4-person crew can complete the mechanical assembly of one unit in approximately 4 to 6 hours using basic hand tools, cordless impact drivers, and alignment mandrels.
Frequently Asked Questions
Q: What are the foundation requirements for demountable flat pack container houses?
A: These units do not require a full concrete slab. They can be installed on simple strip foundations, concrete piers, or adjustable steel footings at the four corner blocks, provided the support points are leveled within a +/- 10 mm tolerance.
Q: How is rainwater drainage managed in stacked or standalone configurations?
A: Each corner column integrates internal downspouts. Rainwater flows from the roof perimeter into concealed internal gutters, travels down through the hollow interior of the four corner posts, and discharges at ground level, preventing exterior wall staining and water accumulation.
Q: Can the internal layout and partition walls be modified after installation?
A: Yes. The interior partition walls are non-load-bearing sandwich panels secured via top and bottom track channels. Wall panels can be repositioned or removed to change room configurations without impacting the primary steel structural frame.
Q: What electrical and plumbing systems are included with the factory unit?
A: Standard units include a pre-wired surface-mounted or concealed PVC trunking electrical system compliant with CE or UL component standards (distribution box, sockets, LED lighting, switches). Water supply and drainage pipe stub-outs can be pre-installed according to custom layout drawings.
Request a Technical Proposal, CAD Drawings & Freight Quote
To generate an accurate bill of materials (BOM), structural calculation report, and 40'HQ container loading calculation for your project, please access our verified engineering documents or submit your requirements directly:
[Download Complete Technical Datasheet, Material Test Reports & AutoCAD Blocks (ZIP/PDF)] (Essential engineering submittal package for project contractors and consultants)
To tailor the specifications to your project parameters, please provide:
- Project Location & Wind/Snow Load Requirements
- Target Layout Configuration (Dormitory, Office, Kitchen, Sanitary Block)
- Required Quantity and Delivery Port (CIF/FOB)
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