What materials are used for the structure?

We use Q235B, Q345B, and high-strength alloy structural steel with hot-rolled forming.

What are the standard dimensions of the container?

Standard 20ft is 6058mm length, 2438mm width, 2896mm height; 40ft is 11858mm length.

What is the payment term?

Payment terms include 30% deposit and 70% before shipping, or LC/T/T.

Economic Flat Pack Prefab Container Office House

Name: Economic Flat Pack Prefab Container Office House
Brand: Qingdao Changhang Steel Structure Co., Ltd.
SKU: 751239692

Shandong, ChinaQingdao Changhang Steel Structure Co., Ltd.

US$2,200.00

1-9 Pieces

US$2,000.00

10-99 Pieces

US$1,900.00

100+ Pieces

Product profile

Customization

Available

Connection Form

Bolt Connection

Suitable Temperature

-50 Centidegree to 50 Centidegree

Model NO.

20ft 40ft

Material

Q235B or Q345b

Roof Sheet

Steel Sheet+ Sandwich Panel

Wall Sheet

EPS /PU Sandwich Panel

Color

Customized

Door

Steel/Glass Sliding Door

Windows

PVC or Aluminum Alloy Windows

Floor

Plywood

Sealing

Silicon Sealant

Electricity

Ceul/SAA Standard, with Distribution Box, Lights

Terms of Payment

30% Deposit, 70% Before Shipping

Packing

10setsx20FT/40hq 4setsx40FT/40hq

Service Life

20 Years

Delivery Date

2 Weeks After Got Deposit

Productivity

1000sets/Month

Type

Light Section Steel

Standard

GB, ASTM, DIN, JIS, AISI, BS

Steel Type

Quality Carbon Structural Steel and Alloy Structural Steel

Forming

Hot-Rolled Steel

Member

Steel Column

Type of Steel For Building Structure

High-Strength Steel

Carbon Structural Steel

Q235

Residential Wall Structure

Wallboard

Application

Frame Part

Transport Package

Sea

Specification

20ft 40ft

Trademark

Changhang

Origin

Shangdong, China

HS Code

94069000

Production Capacity

1000sets/Month

Key features

Customizable Color: Color is fully customized to meet specific client requirements.

Wide Temperature Resistance: Suitable for temperatures ranging from -50 to 50 degrees Celsius.

Flexible Dimensions: Size and column length are based on customer requirements (1000-12000mm).

Fast Delivery: Delivery time is within 20 to 30 days after deposit.

ISO 9001 Certified: Passed ISO 9001 quality management system and other international certifications.

Professional Installation Guide: Expert engineers provide professional guidance for on-site installation.

High-Strength Steel Structure: Constructed with Q235B, Q345B, and high-strength alloy structural steel.

Long Service Life: Designed for a service life of up to 20 years with durable materials.

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: ≤8.20hTerms 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.