Q235 Q355B Steel Structure Factory For Warehouse Workshop
Various Span Custom Steel Structure Factory Manufacturing For Warehouse Workshop
A steel structure factory is an industrial facility whose main load-bearing framework is constructed with steel components—typically including H-shaped steel, C-shaped/Z-shaped steel, and high-strength steel plates. It leverages the inherent advantages of steel: fast on-site assembly, strong load-bearing capacity, and flexible internal space. It is also valued for good durability and adaptability to various industrial needs, making it a common choice for medium-to-large industrial production sites.
Product Specification
The steel structure factory is mainly divided into the following parts:
- H steel column and beam
- C section or Z section roof and wall purlin
- Round tube steel as tie bar
- Round steel as bracing
- Color steel sheet/sandwich panel as roof and wall
- Sandwich panel sliding door/Rolling door
- PVC window/Aluminium window
Our steel structure factories are fully customized, choose materials according to customers' requirements and needs of the factory.
| Items |
Specification |
| Main Structure |
| Column |
Q355, Q235 H-steel, Box column is also available |
| Rafter, Beam |
Q355, Q235 H-steel |
| Surface processing options |
1. Epoxy zinc-rich primer + epoxy mica intermediate paint 2. Hot dip galvanization |
| Sub Structure |
| Purlin |
Q355B C/Z steel section, galvanization |
| Angle brace |
Q235B L-steel |
| Cross bracing |
Q235B round bar, L-steel |
| Tie bar |
Q235B round pipe |
| Batter brace |
Q235B round bar |
| Roof System |
| Roof panel options |
Q235B Steel |
| Gutter options |
Q235B Steel |
| Down spout |
Q235B Circular Steel Pipe |
| Steel flashing and cover |
Q235B Round Bar |
| Wall System |
| Wall panel options |
Insulated sandwich panel, PU, rock wool, glass fiber, EPS. Two sides is steel sheet. Steel plate Brick wall (provided by client) |
| Door |
Roller door for truck, size customized Sliding door for truck, size customized Access door, steel door, glass door etc |
| Window |
PVC or Aluminum frame, Fixed, swing, sliding, louver etc |
| Steel flashing and cover |
Steel sheet end cover and corner cover |
| Accessories and fasteners |
Anchor bolts, chemical bolts, high strength bolts, ordinary bolts, self-drilling screws, rivet etc |
| Other Options |
Crane 5T, 6T, 10T, 16T, 30T etc |

Product Advantages
Why choose structural steel factory?
- High load-bearing capacity & light weight: Supports heavy production equipment, cranes, and raw material storage, while reducing foundation load and cutting foundation costs.
- Fast construction & short duration: Components are factory-prefabricated, with only on-site assembly needed. The schedule is 30%-50% shorter than concrete factories, enabling quick operation.
- Flexible space: Small component cross-sections and fewer internal columns allow free planning of production line layouts, with easier later adjustments.
- Durable & easy to maintain: Excellent seismic and wind resistance. With anti-rust treatment, it has a long service life and low later maintenance/renovation costs.
- Eco-friendly & recyclable: Less construction waste, and steel is 100% recyclable, meeting industrial green construction needs.
Production Processing
- Raw Material Prepare: Inspect and accept steel plates/sections, then pre-treat to ensure processing quality.
- Cutting & Blanking: Use CNC cutting machines (plasma, flame) to cut raw materials into required sizes/shapes with high precision.
- Component Processing: Drill holes, mill edges, or bend parts (if needed) to meet design dimensions for assembly.
- Assembly: Fix cut/processed parts into sub-assemblies with jigs to guarantee alignment.
- Welding: Weld assembled sub-units into finished steel components; conduct weld inspection (UT/MT) to ensure strength.
- Quality Check: Verify component dimensions, weld quality, and structural integrity against design standards.
- Surface Treatment: Apply anti-rust measures (shot blasting, painting, or galvanizing) to extend service life.
- Packing & Delivery: Pack qualified components and ship them to the port.
Design and Quote
If you have drawings, welcome to share drawings with us, quotation will be done based your drawings. Our excellent design team will design the steel structure factory for you. If you give the following information, we will give you an satisfactory drawing.
- Max. Wind speed on site
- Max. Snow load on site
- What is the roof and wall material? There are color steel sheet and sandwich panel to provided.
- Qty. & size for windows and doors
- Crane specification if need

Certification
Xinguangzheng continuously deepens its expertise in the steel structure industry, forming an integrated system for steel structure applications and equipment, centered around steel structures. The company holds numerous qualifications and certifications, including: Grade I Professional Contracting Qualification for Steel Structure Engineering; Grade I Qualification as a China Steel Structure Manufacturing Enterprise; Grade II General Contracting Qualification for Construction Engineering; Grade II Qualification for Building Curtain Wall Engineering; Grade II Qualification for Waterproofing, Anti-corrosion, and Insulation Engineering; Grade II Qualification for Building Decoration Engineering; ISO14001 Environmental Management System Certification; ISO45001 Occupational Health and Safety Management System Certification; and ISO9001 Quality Management System Certification. It also holds certifications and maintains production systems compliant with American, European, and Russian standards for steel structures. With integrated full-chain capabilities encompassing design R&D, intelligent manufacturing, and engineering management, the company provides global customers with high-standard steel structure system solutions.
Why choose Qingdao Xinguangzheng?
Our service is the top presence of steel structure companies in China:
Pre-sale Service
- We will make the plan drawing and give you the accurate budget of the steel buildings according to the clients' need.
- The professional and suitable suggestion will be offered according to local site condition.
- To inform clients when steel price, shipping freight and exchange rate are different than before.
- To send quality inspection report, certificate, etc. to clients.
After-sale Service
- The detailed construction drawing will be offered.
- Quick manufacturing and good quality material will be guaranteed.
- Production schedule and pictures will send to you every week.
- Our experienced construction team will come to site to install the building if need.
Xinguangzheng consistently upholds to its vision of "becoming a global leader in integrated services for steel structure applications and equipment" and making staff successful, giving clients happiness, and ensuring the enterprise of lasting vitality" continuously advancing the high-quality development of the enterprise.
FAQ
1. Is your company a factory or trading company?
We are manufacturer with foreign trade department, so you can get competitive price as well as professional service.
2. What are your main products?
We provide steel structure warehouse, workshop, factory, poultry house, office building, hotel, exhibition hall, hangar, sandwich panels and other construction materials.
3. What kind of drawing will you provide?
Plan drawing, elevation drawing, sectional drawing, foundation drawing and installation drawing.
4. How about your quality control?
We have got related quality control certificates. All the products processing including cutting, welding, bending, shot blasting, packing,storing, loading have strict quality control to ensure qualified products.
5. What's your packing methods?
Packed into steel pallet, or rest in bulk.