What materials are used for the steel structure?

We use low-alloy high-tensile structural steel such as Q345 (S355JR) or Q235 (S235JR), with options for welded or hot-rolled H-section beams.

Can the building size and design be customized?

Yes, we offer full customization for width (6-50m), height (2-20m), length, material grade, and structural components based on your requirements.

Multi-Storey Steel Structure

Name: Deign High Quality Steel Structure Building/Villa/Apartment/Multi-Storey Steel Structure
Brand: Qingdao Steel Building Co., Ltd.
SKU: 1916624985

Shandong, ChinaQingdao Steel Building Co., Ltd.

US$50.00

500-999 Square Meters

US$35.00

1,000-4,999 Square Meters

US$20.00

5,000+ Square Meters

Product profile

Customization

Available

After-sales Service

Installation Guide, 2D & 3D Drawing, Video

Certification

ISO / SGS / CE/ BV

Model NO.

STL-Steel Structure

Model No.

Stl- Prefabricated Steel Structure Frame Building

Main Structure

Weld or Hot Rolled H Section Beam

Purlin

C Section or Z Section Steel

Door

Sliding Door and Rolling Door

Window

PVC/Plastic Steel Window

Color Reference

Ral.

Member of Engineering Team

Quality Control

Daily

Option

Skylight Belt, Ventilation Fitting, Gutter, Crane

Type

H-Section Steel

Standard

GB, ISO, SGS, BV, En1090 Exc2

Steel Type

Low-alloy High-tensile Structural Steel

Forming

Hot-Rolled Steel

Connection Form

Bolt Connection

Type of Steel For Building Structure

H-Section Steel

Residential Wall Structure

Wallboard

Application

Steel Workshop, Steel Structure Platform, Steel Fabricated House, Structural Roofing, Frame Part

Warranty

30 Years

Member

Steel Column, Steel Beam, Steel Truss

Carbon Structural Steel

S235jr & S3355jr, Q355b, A36

Transport Package

Main Structure Loading in 40FT Ot, Others Loading

Specification

Customized

Trademark

STL

Origin

China

HS Code

7308900000

Production Capacity

10000sqm Per Month

Key features

Global Standard Compliance: Meets EN1090 EXC2, AISC, AS4100, and other international standards for Europe, America, and Asia.

Customizable Design: Full customization available for size, material grade, and structural components based on client requirements.

Comprehensive After-Sales: Includes 2D/3D drawings, video guides, and optional on-site engineer supervision for overseas installation.

High-Quality Materials: Uses low-alloy high-tensile steel (Q345/Q235) with shot blasting and anti-rust paint or hot-dip galvanizing.

Versatile Applications: Suitable for warehouses, workshops, villas, apartments, hangars, and multi-storey commercial buildings.

Certified Quality Control: ISO9001 certified with third-party inspections by SGS, BV, and QIMA accepted.

Fast Prefabrication: Parts prefabricated, cut to size, and supplied with all necessary hardware for quick assembly.

Long Warranty: Provides a 30-year warranty for the steel structure building.

Company profile

Years of Export ExperienceQuality AssuranceProduct CertificationManagement Certification

Qingdao Steel Building Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Full Customization CertifiedExport Year: 12 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤3.00h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and professional technical supplier with manufacturing, export, service, quality-control, and R&D capabilities. It provides 3D software design, sample-based and full customization, ODM, and OEM services, and reported new products within the past year. Production information includes prefabricated steel structure building capacity of 100,000 square meters, steel structure frame capacity of 5,000 tons, and other fabricated steel structure capacity of 2,000 tons. Quality credentials include CE compliance certification and ISO9001:2015 certification, supported by raw-material traceability and documented corrective-action and complaint procedures. However, the available information shows no overseas warehouse, showroom, agent, branch, or offline trade-show participation, and no valid manufacturing-capacity contract with affiliated subcontractors. Evidence of customer cases is limited because no Fortune 500 cooperation is reported, although repeat buyers account...

Supplier typeThe supplier is explicitly described as a professional technical supplier and a combined company. Its stated business scope includes construction-related products and manufacturing/processing of doors and windows, while its profile covers manufacturing, export trade, services, quality control, and R&D.

CertificationsThe supplier reports CE certification for product compliance and an ISO9001:2015 management-system certificate. It also states that quality assurance and raw-material traceability are implemented, providing direct support for formal quality-control practices.

After-Sales capabilityThe supplier has documented procedures and records for handling customer complaints, corrective and preventive actions, and service-capability assessment. It also has in-stock capacity and a stated one-month average lead time in both peak and off-season, but has no overseas warehouse, overseas showroom, overseas agent or branch, and serves zero stated overseas countries.

R&D capabilityThe supplier provides 3D software design, sample customization, full customization, ODM, and OEM services, and reports new products within the past year. However, it has no available SDK and lists only two R&D engineers, so the evidence supports active development capability but not a broad or advanced technical platform.

Production capacityReported annual capacity includes 100,000 square meters of prefabricated steel structure buildings, 5,000 tons of steel structure frames, and 2,000 tons of other fabricated steel structures. The supplier lists cutting, shearing, welding, assembly, and inspection processes, with written inspection procedures followed; however, it has no valid manufacturing-capacity contract with affiliated subcontractors.

Customization capabilityThe supplier explicitly supports customization from samples and full customization, provides 3D software design services, and offers both ODM and OEM services. These capabilities directly indicate support for tailored product and design requirements.

Product Q&A

Q:Is your company a factory or trade company?

We are a factory, so you can get the best and competitive price.

Q:What is your quality assurance and control process?

We self-inspect every step during design and fabrication, and third-party inspections are also accepted.

Q:Do you offer on-site installation guidance overseas?

Yes, we can send professional technical engineers to supervise installation on site overseas in countries like Iraq, Dubai, South Africa, Algeria, and Ghana.

Q:What are your main export markets?

Our main markets include Europe, Africa, Middle East Asia, South East Asia, Australia, New Zealand, and South America.

Q:What standards does your steel structure comply with?

We comply with various standards including Europe EN1090 EXC2, America AISC 360-16, Australia AS4100, and others like GB and BS5950.