What are the standard dimensions for the prefab house?

Standard modules are 1.8m wide. Length and width are multiples of K (1900mm and 950mm respectively), and height is 3P, 6P, or 9P (P=950mm) for 1, 2, or 3 stories.

What is the warranty or quality guarantee?

We have strict standard for finished products testing and passed ISO 9001 quality management system certificates to ensure quality.

Office Materials

Name: Cheaper Prefab/Prefabricated K House/Three Floors Sandwich Panel Hotel/Labor Camp/Office Materials
Brand: Qingdao Changhang Steel Structure Co., Ltd.
SKU: 859678355

Shandong, ChinaQingdao Changhang Steel Structure Co., Ltd.

US$29.00-65.00

1 Square Meter

Product profile

Customization

Available

Certification

ISO, Ce

Design Parameter

Wind Load, Snow Load

Model NO.

Customizable according to customer requirements

Drawing Design

Autocad, Pkpm, Mts, 3D3s, Tarch, Tekla Structures

Performance

Safety, Wateproof, Sound Insulated

Surface Treatment

Painted or Hot-DIP Galvanized

Purlin Type

C/Z Galvanized Purlin

Material

Q235B or Q345b

Roof Sheet

EPS, PU, Rockwool Sandwich Panel

Wall Sheet

EPS, PU, Rockwool Sandwich Panel

Roof Wall Color

Whitegrey and Blue

Door

Rooling Door Composite Door

Windows

PVC or Aluminum Alloy

Packing

Felt or According to Customer Requirements

Installation

Engineer on Site

Delivery Date

30days

Type

H-Section Steel

Standard

GB, ASTM, DIN, JIS, AISI, BS

Steel Type

Quality Carbon Structural Steel and Alloy Structural Steel

Forming

Hot-Rolled Steel

Connection Form

Bolt Connection

Member

Steel Column

Type of Steel For Building Structure

High-Strength Steel

Carbon Structural Steel

Q235

Residential Wall Structure

Wallboard

Application

Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Frame Part, Steel Walkway and Floor, Steel Structure Bridge

Transport Package

Sea

Specification

30m2

Trademark

Changhang

Origin

Shangdong, China

HS Code

94069000

Production Capacity

200000m2/Year

Key features

Customizable Design: Design parameters like wind/snow load and drawings can be customized per customer requirements.

High Durability: Service life exceeds 20 years with assembly/disassembly capability for over 6 times.

Fast Delivery: Delivery time is within 20 to 30 days, ensuring high construction efficiency.

Certified Quality: Passed ISO 9001, CE, BV, and SGS certifications for strict quality management.

Professional Support: Engineers available for on-site installation guidance and 24/7 online communication.

Versatile Application: Suitable for warehouses, dormitories, temporary offices, labor camps, and hotels.

Advanced Manufacturing: 10 production lines with 220 employees and 25 engineers ensuring solid design.

Flexible Customization: Surface treatment, materials, and colors can be tailored to specific project needs.

Company profile

Qingdao Changhang Steel Structure Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2009-01-15Nearest Port: Qingdao, ShanghangAverage Response Time: ≤7.23hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryChanghang is identified as a China-based limited company with both trading-company and manufacturer/factory classifications, offering steel structures, prefabricated and container houses, poultry farms, LGS villas, and related products. It reports ISO9001:2008 and CE certifications and SGS/BV inspection results. The supplier demonstrates professional technical, 3D design, SDK, and multiple customization capabilities. However, quality-control evidence is incomplete: test equipment is recorded as zero, quality assurance and traceability status are unknown, and complaint handling and corrective-action procedures lack written records. Financial records are indicated for multiple years, but the provided slices do not establish financial strength. No customer cases are provided.

Supplier typeThe supplier is described as a professional manufacturer and exporter, while its formal classifications include Trading Company and Manufacturer/Factory. Its stated scope covers steel structure engineering, prefabricated and container houses, LGS villas, poultry farms, and related wholesale activities.

CertificationsThe company description explicitly states ISO9001:2008 and CE certification and reports that it passed SGS and BV inspections. These statements provide direct evidence of certification and inspection credentials, although no certificate validity dates or copies are provided.

R&D capabilityThe supplier is identified as a professional technical supplier with 3D software design services, an available SDK, and one R&D engineer responsible for providing solutions according to customer demand. This supports technical development capability, but the limited stated R&D staffing and lack of documented innovation outcomes prevent a stronger assessment.

Production capacityThe company reports design, production, installation, and marketing of steel structures and related buildings, with a stated company area exceeding 50,000 square meters and warehouse area reaching 30,000 square meters. Nevertheless, the business-scope slice also states that certain products are not produced or installed at the listed location, so capability is established but site-specific production coverage is not fully clear.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, together with 3D software design services. This directly supports a broad range of customization options.