Prefabricated Steel Structure Warehouse Buildings Provide Large Column Free Space Up To 100m For Flexible Production Lines Storage Areas And Industrial Applications With Optimized Space Utilization
Engineered Steel Buildings Designed According To International Standards Including AISC Eurocode EN1090 And AS/NZS With Professional Structural Calculation For Wind Snow And Seismic Load Requirements
High Strength Structural Steel Frames With Hot Dip Galvanized Surface Treatment Provide Excellent Load Bearing Capacity Corrosion Resistance And More Than 50 Years Service Life For Harsh Environments
Factory Prefabricated Components With Precision Cutting Drilling And Numbered Assembly System Enable Fast Bolt Installation Reduce Construction Time And Improve Project Delivery Efficiency
Fully Customized Warehouse Solutions Support Flexible Design Of Span Height Bay Spacing Doors Windows Crane Systems Mezzanines And Insulation Panels To Meet Different Project Requirements
Complete Turnkey Steel Building Solutions Include Free CAD Drawings 3D BIM Modeling Structural Analysis Manufacturing Quality Inspection Shipping And Global Installation Support
We have a professional design team of 30 experts with 10 years of experience, offering free one-on-one customized designs, multiple design options, and a wide range of steel components, roof and wall panels, doors, and windows to meet your needs.
| Item | Specification |
|---|---|
| Main Steel Frame | Q355B / ASTM A572 Grade 50 |
| Surface Treatment | Hot-dip Galvanized / Anti-rust Painting |
| Wind Load | 120–300 km/h |
| Snow Load | 0.5–2.0 KN/m² |
| Earthquake Resistance | Grade 8–9 |
| Design Standard | ASTM / AISC / EN1090 |
| Roof & Wall | EPS / Rock Wool / PU Sandwich Panel |
| Service Life | 30–50 Years |
| Drawing Software | Tekla / AutoCAD / SAP2000 |
| Installation | Engineer Guidance + Installation Drawing |
We welcome overseas engineers and project managers to experience our factory operations firsthand.
Qingdao Dandb Steel Structure Co., Ltd. specializes in steel structure warehouses, workshops, and industrial buildings.
• Established: 2000
• Global projects: 100+ countries
• Team: 80+ engineers, 120+ skilled workers
• Service: Tekla design → fabrication → installation guidance
• Material: Q355B high-strength steel
• Features: fast assembly, durable structure, long service life
We utilize customized steel racks for heavy H-beams and soft padding for painted panels to prevent any transport damage. Our logistics team utilizes 3D software to calculate the optimal loading plan for 40HQ/40OT containers, maximizing space and slashing your shipping costs.
We typically use Q355B or Q235B structural steel from top tier Chinese mills such as Baosteel or Ansteel. These grades are equivalent to ASTM A572 Grade 50 or S355JR under European standards. Every batch of steel comes with a factory mill test certificate to verify its chemical composition and mechanical properties.
All steel beams and columns are bundled and secured with protective wrapping and steel belts. Small parts such as bolts and fasteners are packed in wooden crates or heavy duty woven bags and palletized. We use specialized loading techniques to maximize container space while preventing movement and collision during long distance sea freight.
Our steel structures can be designed according to AISC 360, ASTM, Eurocode 3, IBC, EN1090 and local building regulations. Engineering calculations are customized based on project location and climate requirements.
We accept several payment methods including T T wire transfer and L C at sight. We strongly recommend using Alibaba Trade Assurance as it provides the highest level of security for your payment and ensures the supplier meets the shipping date and product quality requirements.
We provide a comprehensive set of documents including signed and stamped architectural drawings structural calculation reports material certificates and technical specifications. These documents are designed to meet the requirements of most local building departments and planning offices worldwide.
The fire rating depends on the insulation material you choose. Our rockwool sandwich panels are classified as Class A non combustible material and offer excellent fire resistance. For standard EPS or polyurethane panels the rating is lower. Please consult our team if your local insurance or safety regulations require a specific fire rating.