China Prefabricated/Prefab Steel Structure Workshop/Industrial Warehouse/Office/Apartment/Farm Shed/Steel Structure Building

Prefabricated Steel Structure Workshop & Industrial Buildings

High-quality Prefab Industrial Metal Prefabricated Structural Steel Frame Structure Storage Construction Warehouse. Designed for multiple commercial and industrial applications, delivering optimal structural performance globally.

China Prefabricated/Prefab Steel Structure Workshop/Industrial Warehouse/Office/Apartment/Farm Shed/Steel Structure Building

Prefabricated Steel Structure Building Advantages

Free design architectural drawings (2D & 3D)
Structure frame design lifespan of over 50 years
Wind, snow, and earthquake resistance design
Standards compliance: EN1090 (Europe), AS4100 (Australia), AISC-360 (American)
Clear span capabilities up to 60m
High-strength steel materials: S355JR, Q355B, GR50, AS3678-350
Fast bolt assembly without on-site welding
Options for hot-dip galvanized or painted structure frames
Delivery within 4 to 6 weeks with custom modifications available

Product Specifications

Items		Specification Details
Main Steel Frame	Column	Q235B, Q355B, Q345B Welded or Hot Rolled H Section Steel
Main Steel Frame	Beam	Q235B, Q355B, Q345B Welded or Hot rolled H Section Steel
Secondary Frame	Purlin	Q235B, Q345B, Q355B C and Z purlin
	Knee brace	Q235B Angle Steel
	Tie Beam	Q235B Circular Steel Pipe
	X Brace	Q235B Round Bar, Angle Steel
	Sag rod	Q235B Round Bar or Steel Pipe
Maintenance System	Roof Panel	Glass Fiber Sandwich Panel / Rock Wool Sandwich Panel / EPS Sandwich Panel / Pu Sandwich Panel / Single Steel Sheet
Maintenance System	Wall Panel	Sandwich Panel / Corrugated Steel Sheet
Accessories	Window	Vent window / Aluminium Alloy Window / PVC Window / Sandwich Panel Window
	Door	Sliding Door / Rolling Metal Door / Aluminium Alloy Swing Door
	Rainspout	PVC
Live load on Roof		In 120kg/Sqm (Color steel panel surrounded)
Wind Resistance Grade		12 Grades
Earthquake-resistance		8 Grades
Structure Usage		Up to 50 years
Finishing Options		Vast array of colors available
Surface Treatment		Two Layer Epoxy Paint Or Hot Dip Galvanized.

Steel Structure Building 3D Drawings

Steel Structure Building 3D Drawing Plan

Steel Structure Building 3D Drawing Isometric View

Global Standards & Market Experience

With over 15 years of export experience, our steel structures are designed and approved under various international standard systems:

1. Europe Standard (EN1090 EXC2)

CE Approved. Exported to Norway, Iceland, France, Spain, Romania, Czech Republic, Croatia, etc.

2. America Standard (AISC 360-16)

BV, SGS Approved. Exported to the United States, Mexico, Dominica, Paraguay, Colombia, Chile, Brazil, Argentina, etc.

3. Australia Standard (AS-4100-1998)

SGS Approved. Exported to Australia (Melbourne, Sydney, Adelaide, Queensland) and New Zealand.

4. Africa Standards (EN1090, BS5950-2, GB)

CE, BV, SGS Approved. Exported to Mauritania, Senegal, Côte d'Ivoire, Ghana, Nigeria, Cameroon, Congo, Angola, Zambia, South Africa, Malawi, etc.

5. Middle Asia Standards (EN1090, BS5950-2)

CE, BV, SGS Approved. Exported to Saudi Arabia, Oman, Qatar, Israel, Lebanon, Jordan, etc.

6. Southeast Asia Standards (BS5950-2, GB)

BV, SGS Approved. Exported to Myanmar, Vietnam, Malaysia, Brunei, Philippines, Cambodia, etc.

Key Structural Features

Architectural Versatility: Fast and flexible to assemble, safely engineered, and highly insulated against heat and noise. Water-proof and fire-preventive design.
Cost-Efficiency: Bolt-together joints minimize on-site welding, reducing labor and shortening construction times.
Heavy Load Handling: Engineered to withstand strong wind currents, seismic activities, and heavy localized snow loads.
Leaking Prevention: Superior joint designs prevent leaks and water seepage completely.

Production Process & Manufacturing

Finished Products & Loadout Options

Option A: Painted Steel Components

Painted Square Tube

Painted Main Structure

Painted Steel Structure loaded in Container

Painted Steel Loading

Option B: Hot-Dip Galvanized Components

Galvanized Angles & Pipes

Galvanized Main Frame

Galvanized Steel Structure Load in Container

Galvanized Steel Loading

Steel Structure Buildings Post-Installation

Steel Structure Warehouse Building after installation

Project Cases Showcase

Single Slope Steel Structure Villa

Galvanized Steel Warehouse Project View 1

Galvanized Steel Warehouse Project View 2

Galvanized Steel Warehouse and Workshop

Client Visits & Direct Feedback

Factory Visit:

Client Feedback:

Loading, Packaging & Shipping Documents

To ensure item integrity, the main steel frames are loaded into 40'OT (Open Top) containers, whereas the roof and wall panels are loaded into 40'HQ (High Cube) containers.

Loading steel structure into shipping containers

Loading in Containers

Provided Project Documents

Other Building Materials

General Configuration

Application	Steel structure building, steel warehouse, workshop, aircraft hangar, sports hall, shopping mall, cow shed, poultry house, agricultural buildings, and villas.
Clear Span (Width)	6m to 50m without middle columns.
Height	2m to 20m.
Length	Customizable according to project specifications.
Material Grade	Q345 (S355JR) or Q235 (S235JR) steel.
Column & Rafter	Welded or Hot Rolled H-Beams.
Tie Beam	Round pipes or square tubes.
Purlins	C or Z purlins with thickness options: 2.0mm, 2.2mm, 2.5mm, 3.0mm.
Wall & Roof Cladding	Single corrugated steel sheets (0.12 - 1.2mm) or insulated sandwich panels (EPS, Rockwool, Glass fiber, PU) with thicknesses of 50mm, 75mm, 100mm, 150mm, 200mm.
Gate / Door options	Electric roller shutter doors, sliding doors, PVC, or aluminum alloy swing doors.
Surface Finish	Shot blasting with anti-rust paint, rich-zinc epoxy primer, or hot-dip galvanization.
Quality Inspections	SGS, QIMA, BV third-party audits accepted.

Standard Dimensions & Reference Parameters

Building Type	Popular Sizes	Popular Heights	Roof & Wall Coverage	Gate Dimension
Steel Warehouse	20m x 30m	5m	Single corrugated steel sheet	4.0m x 4.5m
Steel Workshop	20m x 50m	6m	Insulated roof with single steel sheet walls	4.5m x 5.0m
Farm Storage	16m x 36m	4m	Single steel sheet (or open wall layout)	4.0m x 3.5m

Project Sizing & Inquiry Requirements

When requesting a custom design quotation, please provide the following details:

Project Location: Country and city location.
Required Dimensions: Length * Width * Eave Height (Accept internal columns for spans >30m?).
Wind Loads: Maximum local wind speed (kn/m², km/h, or m/s).
Snow Loads: Maximum snow thickness or load (kn/m² or mm).
Seismic Level: Anti-earthquake rating.
Brick Wall: Do you require a bottom brick wall (e.g., 1.2m high)?
Insulation requirements: EPS, Glasswool, Rockwool, or PU sandwich panels (or single steel sheets).
Access Openings: Quantity and dimensions of doors and windows.
Surface Treatment: Paint finish or hot-dip galvanizing.
Additional structures: Mezzanine levels, overhead cranes, or specific requirements.

Quality Certificates

Welder and structural certificates catalogue preview

Certificate Catalogue

121 SAW (Submerged ARC Welding) Welder's Qualification Test Certificate (Valid until: Oct. 5, 2025)
135 BW (Butt Welding) Welder's Qualification Test Certificate (Valid until: Oct. 28, 2025)
135 FW (Fillet Welding) Welder's Qualification Test Certificate (Valid until: Oct. 28, 2025)
NDT (Non-Destructive Testing) Holder's Certificate (Valid until: Apr. 9, 2025)
IWE (International Welding Engineer) Certificate
Material Test Certificate EN10204-3.2 (S235JR & S355JR)
CE EN 1090-1 Structural Conformity Certificates (Execution Class: EXC2 - Valid until: Nov. 27, 2025)
Mill Test Certificates for Hot Rolled H-beams and Steel Plates

Manufacturing Technology & Plant Assets

Factory internal machines and heavy fabrication line

Advanced Steel Processing

Slitting Cutting: Minimizes traditional flame cutting defects (edge unevenness, rough textures, cracking, and slag residues).

Laser Cutting: Greatly improves structural dimension accuracy, preventing piece deformation and minimizing porosity during subsequent welding processes.

3D H-Beam Drilling: Drills structural H-beam webs and flanges simultaneously in three directions, drastically improving installation hole precision.

Design engineering and workflow coordination image

Design Experience & Workflow Integration

Operating since 2007, we are fully integrated with international code requirements and standard construction habits. This expertise streamlines structural designs and coordination steps from draft to final execution.

Annual production outputs include: 30,000 tons of welded H-beams, 8,000 tons of C/Z purlins, 100,000 square meters of composite panels, and 8,000 tons of corrugated sheets.

Frequently Asked Questions

Is your company a factory or a trade company?

We are a direct manufacturing factory, which allows us to provide highly competitive prices while maintaining total control over quality standards.

What quality assurance do you provide and how do you control quality?

We perform self-inspections at every stage of the design and fabrication processes. Third-party testing/inspections by organizations like SGS, QIMA, and BV are fully accepted.

Do you offer guiding installation on site overseas for warehouse buildings?

Yes, we can send professional technical engineers to supervise installation on site overseas. They have successfully guided installations across multiple countries worldwide.

What is your main market?

Our major markets include Europe, South America, North America, Africa, the Middle East, Southeast Asia, Australia, and New Zealand.

What design codes can you accommodate for steel calculations?

We design according to multiple standards: European standards (EN1090), Australian standards (AS4100), and American standards (AISC-360), depending on your local regulations.

What is the lifespan of your steel structures?

Our main steel frames are designed for maximum durability. The structural steel frame has a designed service life of over 50 years with basic maintenance.

Product Detail