Is the steel frame rust-proof for long-term outdoor use?

All main steel structures are hot-dip galvanized, with strong anti-rust performance, suitable for coastal and humid areas.

Can the expandable house be disassembled and moved to another place repeatedly?

Yes. Equipped with galvanized lifting eyes for integral hoisting, it can be relocated and reused many times.

What material is the wall panel, is fireproof optional?

Standard wall is 65mm EPS sandwich panel. Rock wool fireproof panel can be customized for higher fire protection requirements.

Can you match the electrical standard of my country?

We support custom sockets and wiring systems for EU, Australia, Africa and other regional standards.

What scenarios is this double-wing folding house suitable for?

Widely used in construction dormitory, mining camp, emergency shelter, glamping resort, rural villa and temporary office.

Prefab Double-Wing Expansion House for Office Dormitory

Name: Prefab Double-Wing Expansion House for Office Dormitory
Brand: Zhongxiang Steel Structure (Tianjin) Co., Ltd.
SKU: 1990207421

Hebei, ChinaZhongxiang Steel Structure (Tianjin) Co., Ltd.

US$3,789.00

1-4 Pieces

US$3,369.00

5+ Pieces

Product profile

Customization

Available

After-sales Service

Online Technical Support

Application

Residential Hostel

Model NO.

EXPANDABLE HOUSE1

Fast Installation

Feature

Earthquake Resistant, Easily Movable, Eco-Friendliness, Flexibly Combinable, Leak Proof, Moisture Proof, Safe, Thermal Insulation, Waterproof, Wind Resistance

Material

Sandwich Panel

Warranty Card

1 Year

Design Style

Modern

Productivity

30 Sets/Per Month

Transport Package

Flat Pack Shipping

Specification

20ft,40ft,etc...We also had special size for 2.9M

Trademark

ZhongXiang

Origin

Hebei

HS Code

9406900090

Production Capacity

5000t

Key features

Fast Installation: Complete setup in 30 minutes by 3-4 workers with direct move-in capability.

Customizable Dimensions: Available in 15ft, 20ft, 30ft, 40ft sizes with adjustable layouts and colors.

Fireproof Wall Panels: Standard 65mm EPS panels with optional Rock wool fireproof customization.

Rust-Proof Steel Frame: Hot-dip galvanized main structure suitable for coastal and humid environments.

10-Year Frame Warranty: Comprehensive 10-year warranty on the main galvanized steel frame.

Global Electrical Standards: Customizable sockets and wiring for EU, Australia, Africa, and other regions.

Relocatable Design: Equipped with lifting eyes for repeated disassembly, transport, and reuse.

24/7 Technical Support: Remote video guidance and detailed manuals provided for on-site assembly.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceMulti-language PioneerIn-stock Capacity

Zhongxiang Steel Structure (Tianjin) Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2024-06-12Nearest Port: TianjinAverage Response Time: ≤2.42h

AI-Powered supplier vetting

SummaryThe supplier is a limited company with an affiliated company, 55 employees, six production lines, export licensing, and coverage across multiple international markets. It reports ISO 9001 certification, quality assurance procedures, documented corrective and preventive actions, and complaint-handling procedures. Its R&D team supports professional technical development, 3D software design, and several customization models. Production-related evidence includes in-stock capability and six production lines, but there is no valid manufacturing contract with associated subcontractors. Financial records are referenced for 2023–2025, but their results are not provided. No customer cases are identified in the supplied information.

Supplier typeThe supplier is identified as a combined company and limited company, with an affiliated company. It is not described as an offshore company and has 55 employees.

CertificationsThe supplier holds ISO 9001 certification, providing explicit evidence of a certified quality management system.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions and customer complaints, and it reports in-stock service capability. However, it lacks overseas warehouse and showroom capabilities.

R&D capabilityThe supplier reports a professional R&D team, 11–20 years of total R&D engineer experience, and a stated focus on technological innovation in thermal insulation tile technology. It does not have an available SDK, but the provided evidence still supports general R&D capability.

Production capacityThe supplier operates six production lines and reports in-stock capability. However, it has no valid contract with associated subcontractors, which creates a documented gap in manufacturing-capacity governance.

Customization capabilityThe supplier provides 3D software design services and supports customization from samples, designs, full customization, minor customization, and flexible customization. This is explicit evidence of broad customization capability.

Product Q&A

Q:Can this expandable house be transported by standard container?

Yes. The two wings fold inward to standard container width, multiple sets can be loaded into one 40HQ container to cut shipping cost.

Q:Does the house need permanent concrete foundation?

No. Only flat ground, cement slabs or simple support blocks are required, it will not damage the land.

Q:Is the whole house pre-installed in factory?

Yes. Doors, windows, electric circuits, water pipes and floor are fully prefabricated. Optional bathroom and kitchen cabinets are finished in workshop.

Q:How long does it take to finish installation on site?

Only 30 minutes for 3-4 workers to unfold the house, connect water and electricity then you can move in directly.

Q:Can I customize the size, layout and exterior color?

Sure. We have 15ft/20ft/30ft/40ft standard sizes. Window position, interior layout, wall color and terrace can all be customized.