High Rise Prefab Multi Storey Steel Buildings with 275g/m² Galvanization and 30T Crane Capacity
Our high-rise prefab multi-storey commercial structural steel buildings feature fast assembly and durable construction using premium steel materials including Q235B, Q355B, and ASTM A36. These buildings offer modern aesthetics with customizable painting or galvanization options to meet specific project requirements.
| Component | Material & Specifications |
|---|---|
| Column | Q355/Q235 H-steel, Box column available |
| Rafter, Beam | Q355/Q235 H-steel |
| Surface Processing | Epoxy zinc-rich primer + epoxy mica intermediate paint (120μm thickness) or Hot dip galvanization |
| Component | Material & Specifications |
|---|---|
| Purlin | Q355B, C/Z steel section, galvanization 275g/m² |
| Angle Brace | Q235B, L-steel |
| Cross Bracing | Q235B round bar, L-steel |
| Tie Bar | Q235B, round pipe |
| Batter Brace | Q235B, round bar |
| Component | Specifications |
|---|---|
| Roof Panel | Insulated sandwich panel (PU, rock wool, glass fiber, EPS) with steel sheet sides, thickness 50mm/75mm/100mm, steel thickness 0.4mm/0.5mm/0.6mm or Steel plate, thickness 0.4mm/0.5mm/mm |
| Gutter | Galvanized steel gutter, thickness 2.0mm/2.5mm/3.0mm or Painted pre-finished steel gutter, thickness 0.4mm/0.5mm/0.6mm |
| Down Spout | PVC pipe |
| Options | Roof skylight with 1.8mm PVC sheet and stainless steel ventilator |
| Component | Specifications |
|---|---|
| Wall Panel | Insulated sandwich panel (50mm/75mm/100mm thickness) or Steel plate (0.4mm/0.5mm/mm) or Brick wall (client provided) |
| Door | Roller door for truck, sliding door for truck, access door, steel door, glass door - all sizes customized |
| Window | PVC or Aluminum frame, Fixed/swing/sliding/louver styles, size customized |
| Component | Specifications |
|---|---|
| Crane Systems | 5T, 6T, 10T, 16T, 30T capacities |
| Fasteners | Anchor bolts, chemical bolts, high strength bolts, ordinary bolts, self-drilling screws, rivets |
- All steel structure frame parts prefabricated (holes, welding, surface treatment)
- All roof and wall panels pre-cut to size for your structure
- Complete windows and doors with all hardware (hinges, handles)
- All necessary bolts, screws, and pop-rivets for secure assembly
- Flashing and silicone for enhanced insulation
- Selected accessories: gutter, water spout, ventilation fittings, stairs
- Internal equipment: LED lighting, shelf racks
- Engineering design and structural analysis
- Comprehensive project management and coordination
- Quality control and assurance systems
- Professional fabrication and assembly services
- Installation and commissioning support
- Training and ongoing technical assistance
Q: Are you manufacturer or trading company?
A: We are a manufacturing factory located in Qingdao city, near Qingdao port, with 3 workshops covering steel structure to wall and roof sheet production.
Q: How about your quality control?
A: We hold ISO & CE certifications with comprehensive quality processes including cutting, bending, welding, shot blasting, ultrasonic testing, and packing.
Q: Is third party inspection available?
A: Yes, SGS, BV, TUV inspections are available according to client requirements.
Q: How about your delivery time?
A: Typically 30-45 days depending on order quantity, with partial shipment available for large orders.
Q: What about the installation?
A: We provide detailed installation drawings and supervisor guidance. Turnkey project services are available for certain projects.
Q: How to ensure the product matches our requirements?
A: Our sales and engineering teams provide customized solutions with proposal drawings, shop drawings, 3D models, material photos, and completed project references.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.