China Galvanized Prefabricated Factory Price Steel Structure for Steel Frame Structure Industrial Warehouse Worskshop Building Construction

Customization: Available
After-sales Service: 2D &3D Installation Drawing& Install Video
Connection Form: Bolt Connection

Product Description

Overview Product Description Certifications Clients Visit Packaging & Shipping Installation Instructions FAQ
Basic Info
Model NO.
STL-steel structure
Construction Member
Steel Column & Rafter, Purlin, Tie Beam etc
Grade
Quality Carbon Structural Steel And Alloy Structural Steel
Molding Method
Hot Rolled & Weld
Residential Wall Structure
Wall Support
Standard
GB, ASTM, En1090, AS
Steel Type
High-Strength Steel
Structure
Steel Structure
Drawing
Free Design Drawing, 2D & 3D Version
Resistance
Wind: 80~280km/h, Snow: 30~200kg/m2, Earthquake: Grade 9
Frame
Steel Portal Frame Building
Delivery Time
4~6 Weeks
Certificate
ISO, CE, Third Party Inspect
Roof Pitch
10%, 12%, 16%, 25%, 30% etc
Roof & Wall Coverage
Single Corrugated Sheet or Sandwich Panel
Window
PVC or Aluminum Alloy Frame Window
Gate
Sliding Industrial Door or Roller Shutter Door
Option
Skylight Belt, Ventilation Fitting, Gutter, Crane
Warranty
30 Years
Carbon Steel
Q355B/S355JR/GR50, Q235B/S235JR/A36 etc
Capacity
10000 sqm Per Month
Packaging & Delivery
Package Size
200.00cm * 500.00cm * 600.00cm
Gross Weight
26000.000kg
Product Description

Galvanized & Prefabricated Steel Structure for Steel Frame Structure Industrial Warehouse Workshop Building Construction.

Galvanized Prefabricated Steel Structure

Advantages:

  • Free design architectural drawings 2D & 3D
  • Structure frame design use life more than 50 years
  • Wind, snow, and earthquake resistance design
  • Multiple design guide compliance (EN1090 Europe standard, AS4100 Australia standard, AISC-360-05 American standard)
  • Clear span up to 60m
  • High strength steel material (S355JR, Q355B, GR50, AS3678-350)
  • Steel portal frame structure with H-Beam and I-Beam
  • Roof and wall cladding insulation & single skin available
  • Industrial gate, entrance and windows included
  • Bolt assembly without on-site welding
  • Hot dip Galvanized and painted structure frame optional
  • Delivery within 4~6 weeks
  • Customization available
  • Worldwide market experience since 2007
Steel Structure Detail 1
Steel Structure Detail 2
Steel Structure Detail 3
American Standard Portal Frame Building
Suit for:
1) ANSI/AISC 360-05 Standard demand
2) Heavy snow and wind region
Europe Standard I-Beam Frame Building
Suit for:
1) EN1090-1:2009+A1:2011; EN1090-2:2018 Standard demand
2) Other English, French, and Spanish speaking regions
Australia Standard H-Beam Frame Building
Suit for:
1) AS4100-1998 Standard demand
2) Australia, New Zealand and nearby regions
Galvanized steel structure workshop
Galvanized steel structure workshop
Steel machinery warehouse
Steel machinery warehouse
Steel farm hay shed
Steel farm hay shed
Steel structure frame
Steel structure frame
Angle steel brace
Steel structure angle steel brace
Steel tie beam
Steel tie beam
Export History & Structural Design Compliance Standards:
  • Europe Standard: EN1090 EXC2 (CE approved) - Exported to Norway, Iceland, France, Spain, Romania, Czech Republic, Croatia, etc.
  • Africa Standard: EN1090 BS5950-2 GB etc. (CE, BV, SGS approved) - Exported to Mauritania, Senegal, Côte d'Ivoire, Ghana, Nigeria, Cameroon, Congo, Angola, Zambia, South Africa, Malawi, etc.
  • Middle Asia Standard: EN1090 BS5950-2 GB etc. (CE, BV, SGS approved) - Exported to Saudi Arabia, Oman, Qatar, Israel, Lebanon, Jordan, etc.
  • Southeast Asia Standard: BS5950-2 GB etc. (BV, SGS approved) - Exported to Myanmar, Vietnam, Malaysia, Brunei, Philippines, Cambodia, etc.
  • Australia Standard: AS-4100-1998 (SGS approved) - Exported to Melbourne, Sydney, Adelaide, Queensland, New Zealand, etc.
  • America Standard: AISC 360-16 EN1090 BS5950-2 GB etc. (BV, SGS approved) - Exported to United States, Mexico, Dominica, Paraguay, Colombia, Chile, Brazil, Argentina, etc.
Completed Case Show

Supplied Components Checklist:

  1. All steel structure frame parts are prefabricated (hole, weld, surface treatment, etc.).
  2. All roof and wall panels are pre-cut to fit the structure size.
  3. Complete windows and doors with hardware (hinge, handle, etc.).
  4. Bolts, screws, and pop-rivets needed to secure the structure.
  5. Flashing and silicone to assist in insulation and waterproofing.
  6. Optional accessories: gutter, water spout, ventilation fittings, stairs, etc.
  7. Optional internal simple equipment: LED lights, shelf racks, etc.
Prefabricated Steel Building General Configuration
Specification Item General Configuration Details
Application Steel warehouse, steel structure warehouse, steel workshop, hangar, sports hall, shopping mall, agricultural buildings (cow shed, chicken building, etc.)
Clear Span (Width) 6~50m without middle columns
Height 2~20m
Length Customized to requirements
Material Grade Q345(S355JR) or Q235(S235JR) steel or as requested
Column & Rafter Welded or Hot rolled H-beam
Tie Beam Round pipe, square tube or as requested
X-Brace Round steel bar, angle steel or as requested
Purlin C purlin, Z purlin (Thickness: 2.0mm, 2.2mm, 2.5mm, 3.0mm)
Sag Rod Steel round bar, angle steel, C purlin, etc.
Wall & Roof Coverage Single corrugated steel sheet (0.12~1.2mm) or EPS/Rock wool/Glass fiber/PU core sandwich panel (Thickness: 50mm, 75mm, 100mm, 150mm, 200mm)
Gate Electric roller shutter door or sliding door
Exit Door Plastic steel, aluminum alloy swing door, or steel swing door
Window Plastic steel or aluminum alloy frame (sliding, ventilation, or top-hung window)
Surface Treatment Shot blasting with anti-rust rich-zinc epoxy paint or hot dip galvanization
Certificate ISO9001, CE EN1090 EXC2, IWE etc.
Quality Control Third-party inspections accepted (SGS, QIMA, BV)
Crane Options 5MT, 10MT, 15MT, etc.
Other Accessories Gutter, flashing trimming cover, downspout, ventilation fitting, skylight belt, bolts, anchor bolts, self-tapping screws
Package & Load Main steel frame loaded in 40'OT; roof and wall panels loaded in 40'HQ
Certifications
Steel Structure Certificate Catalogue

Certificate Catalogue

  1. 121 SAW (Submerged ARC Welding) Welder's Qualification Test Certificate-1 (Valid until: Oct. 5, 2025)
  2. 121 SAW (Submerged ARC Welding) Welder's Qualification Test Certificate-2 (Valid until: Oct. 5, 2025)
  3. 135 BW (Butt Welding) Welder's Qualification Test Certificate-1 (Valid until: Oct. 28, 2025)
  4. 135 BW (Butt Welding) Welder's Qualification Test Certificate-2 (Valid until: Oct. 28, 2025)
  5. 135 FW (Fillet Welding) Welder's Qualification Test Certificate-1 (Valid until: Oct. 28, 2025)
  6. 135 FW (Fillet Welding) Welder's Qualification Test Certificate-2 (Valid until: Oct. 28, 2025)
  7. NDT (Non-Destructive Testing) Holder's Certificate (Valid until: Apr. 9, 2025)
  8. IWE (International Welding Engineer) Certificate (Valid long time)
  9. Material Test Certificate EN10204-3.2 (S235JR) (Valid long time)
  10. Material Test Certificate EN10204-3.2 (S355JR) (Valid long time)
  11. 121 SAW (Submerged ARC Welding) Procedure Qualification Record (Valid long time)
  12. 121 SAW (Submerged ARC Welding) Procedure Qualification Test (Valid long time)
  13. 121 SAW (Submerged ARC Welding) Procedure Qualification Result (Valid long time)
  14. 135 BW (Butt Welding) Procedure Qualification Record (Valid long time)
  15. 135 BW (Butt Welding) Procedure Qualification Test (Valid long time)
  16. 135 BW (Butt Welding) Procedure Qualification Result (Valid long time)
  17. 135 FW (Fillet Welding) Procedure Qualification Record (Valid long time)
  18. 135 FW (Fillet Welding) Procedure Qualification Test (Valid long time)
  19. 135 FW (Fillet Welding) Procedure Qualification Result (Valid long time)
  20. CE EN 1090-1:2009+A1:2011 (Conformite Europeenne) (Valid until: Nov. 27, 2025)
  21. CE EN 1090-1:2009+A1:2011 (Execution Class: EXC2) (Valid until: Nov. 27, 2025)
  22. Mill Test Certificate-Sample (Q355B Hot rolled H beam) (Valid long time)
  23. Mill Test Certificate-Sample (Q355B Steel plate) (Valid long time)
  24. Mill Test Certificate-Sample (Q235B Angle steel) (Valid long time)
Clients Visit
Client Visit Photo
Packaging & Shipping

Prefabricated Steel Structure Building Loading and Shipping Preparation.

Steel Structure Loading 1
Steel Structure Loading 2
Installation Instructions
Steel Structure Installation Drawing

Prefabricated Steel Structure Building Components Options:

Column and Rafter Components
Main Steel Frame Strut (Tie Beam) on Eave and Ridge X-Brace for Roof and Wall
Material: Welded or hot rolled H-beam etc.
Grade: Q355 (S355JR)
Surface: Hot-dip Galvanized zinc coat or Anti-rust rich-zinc epoxy paint
Usage: Forms the primary load-bearing structural frame
Material: Round pipe or square tube etc.
Grade: Q235 (S235JR)
Surface: Hot-dip Galvanized zinc coat or Anti-rust rich-zinc epoxy paint
Usage: Prevents longitudinal frame shifting or shaking
Material: Steel round bar or angle steel etc.
Grade: Q235 (S235JR)
Surface: Hot-dip Galvanized zinc coat or Anti-rust rich-zinc epoxy paint
Usage: Enhances structural stability, tying the whole building together
X-Bracing and Cladding Details
Purlin Details Single Cladding Sheet Sandwich Panel & Insulation
Material: C/Z purlins
Size: 80~300mm (Thickness: 1.8~3.0mm)
Grade: Q235 (S235JR)
Surface: Galvanized coating
Application: Supports roof/wall protective and cladding panels
Color: RAL Colors (Optional)
Thickness: 0.13-0.8mm
Type: V840, V900, etc. (multiple wave shapes)
Usage: Roof or wall coverage
Flashing: Covers ridge, wall outer corners, etc. to prevent leaks
Structure: Two layers of PPGI sheets with an insulated core
Type: EPS, Rock wool, Glass wool, or PU/PIR core
Other Insulation: Glass wool blanket or PE foam
Application: Fire protection and thermal insulation
Doors and Windows Components
Sliding & Roller Gates Swing Doors Windows & Vents
Sliding Door: Steel tube frame + corrugated steel sheet or sandwich panel
Electric Roller Gate: Typically 0.8mm thickness, wind-resistant motor
Canopy: Placed above gates for weather shelter
Types: Aluminum alloy swing door, fire-rated door, steel door, office entry doors
Customization: Selectable colors, glass sizing, and handle types
Material: PVC or Aluminum alloy frame
Glass: 4mm standard glass or 5mm/6mm tempered glass
Types: Sliding window, vent, top-hung window
Ventilation and Fastening Accessories
Ventilation Facilities Joint Bolts & Fasteners Sealants
Material: Stainless steel wind fan
Power Type: Natural wind-driven power
Common Sizes: D=500mm, 1380x1380mm etc.
Grades: 10.9S, 8.8S, 4.8S
Types: Foundation anchor bolts (base connection), high-strength bolts (beam-to-column connections), self-tapping screws, rivet nails
Silicone Glue: Applied at flashing joints and seams to prevent water and air leakage
How to Order a Prefabricated Steel Structure Building:

Please verify your requirements through the following criteria:

1. Project Location
Determine geographical coordinates and regional wind/snow factors.
2. Building Usage
Specify application (warehouse, workshop, storage, agricultural).
3. Local Load Factors
Wind speed (KM/H), snow load (KG/M2), and seismic load if applicable.
4. Dimensions
Width x Length x Eave Height (clarify if inner columns are acceptable for spans >30m).
5. Coverage Materials
Select insulation sandwich panels (EPS, Rockwool, PU) or single steel sheets.
6. Openings & Additions
Specify windows, doors, mezzanines, or overhead crane capacity.
Order Custom Steel Structure Guide
Production & Capability
Production Process

Slitting Cutting: Slitting cutting is utilized to avoid traditional flame-cutting defects (such as edge unevenness, crack, dregs, and roughness).

Laser Cutting: Significantly improves cutting precision, avoiding standard component deformation and welding porosity.

3D H-Beam Drilling: Realizes H-beam web and flange drilling in three directions simultaneously, improving hole alignment accuracy.

Steel Fabrication Facility
Item Type Popular Dimension Standard Eave Height Cladding Option Gate Dimension
Steel Warehouse 20 x 30 m 5 m Single corrugated steel sheet 4 x 4.5 m
Steel Workshop 20 x 50 m 6 m Insulated roof with single steel sheet wall 4.5 x 5 m
Farm Storage Shed 16 x 36 m 4 m Single steel sheet or open wall (only roof) 4 x 3.5 m

Multi-Floor Steel Structure & Integrated Office Buildings

For commercial applications, structural steel provides highly robust solutions. Steel frames require minimal maintenance and ensure long-term durability. We provide practical architectural layouts to incorporate multi-floor offices alongside or integrated directly inside the main warehouse or industrial workshop structure.

The production facility manages complete steel structure production lines. The annual output reaches 30,000 tons of welded H-beams, 8,000 tons of C/Z purlins, 100,000 square meters of insulated sandwich panels, and 8,000 tons of profiled corrugated steel sheets. A variety of structural options are custom-manufactured to suit different project specifications worldwide.

Frequently Asked Questions
1. Is your company a factory or a trading company?
We are a direct manufacturer. This allows us to offer competitive pricing and maintain strict quality control at every stage of the fabrication process.
2. What quality assurance standards do you follow?
We perform self-inspections at every step, from design to fabrication. In addition, we fully support and welcome third-party inspections from international organizations such as SGS, QIMA, and Bureau Veritas (BV).
3. Do you provide on-site installation guidance for overseas projects?
Yes, we can send professional technical engineers to supervise and guide installation on-site overseas. Our engineers have successfully directed building installations in many countries globally.
4. What design standards can your steel structures comply with?
Our buildings can be designed to match specific regional codes, including the American Standard (AISC 360-16), European Standard (CE EN1090 EXC2), and Australian Standard (AS-4100-1998).
5. What customization options are available for the roof and wall cladding?
We offer single corrugated steel sheets (0.12~1.2mm thickness) as well as sandwich panels with various insulation cores (EPS, Rockwool, Glass wool, or PU) ranging in thickness from 50mm to 200mm.
6. What is the typical delivery timeline for a custom prefab steel building?
Standard delivery ranges from 4 to 6 weeks, depending on the complexity of the design, the overall dimensions of the building, and the surface treatment selected (galvanized or painted).

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