What Is a Prefabricated Steel Structure Building?
A prefabricated steel structure building is a bolt-together steel frame system in which every column, rafter, purlin, and connection plate is precision-cut, drilled, and welded in our factory — then containerized and shipped to your site for rapid assembly.
Unlike traditional on-site steel fabrication (which is slow, weather-dependent, and expensive in most countries), our approach delivers:
- 30–50% faster construction compared to conventional steel erection
- Zero on-site welding — 100% bolted connections
- Lower total project cost through factory efficiency and reduced site labor
- Consistent quality — every component passes dimensional inspection before packing
- This is not a "steel kit." This is a fully engineered structure, designed to your local wind, snow, and seismic loads.
Building Types We Deliver
-
| Category |
Typical Span |
Applications |
| INDUSTRIAL WAREHOUSE |
18–36m |
Logistics centers, distribution hubs, e-commerce fulfillment |
| FACTORY WORKSHOPS |
15–30m |
Manufacturing plants, assembly lines, processing facilities |
| HANGAR |
30–80m |
Civil and aviation, MRO facilities |
| AGRICUTURAL BUILDINGS |
10–20m |
Poultry houses, livestock barns, crop storage, riding arenas |
| COLD STORAGE |
10–25m |
Temperature-controlled warehouses, food processing |
| SHOWROOMS |
15–30m |
Retail spaces, vehicle showrooms, exhibition halls |
| SPORTS BUILDING |
20–50m |
Indoor arenas, gymnasiums, swimming pool enclosures |
| PERSONAL USE |
8–16m |
Private workshops, garages, equipment sheds, hay barns |
Technical Specifications
Primary Steel Frame
| Component |
Material |
Standard |
| Columns |
Q355B / S355JR welded H-section |
GB/T 11263 / EN 10025-2 |
| Rafters |
Q355B / S355JR welded H-section (tapered) |
GB/T 11263 |
| Base plates |
Q235B / S235JR, 16–25mm thick |
GB/T 3274 |
| Connection bolts |
Grade 10.9 high-strength friction-grip bolts |
GB/T 1228 / EN 14399 |
| Component |
Material |
Specification |
| Purlins |
Q345B / S350GD cold-formed Z or C section |
GB/T 6725 / EN 10149-2 |
| Girts |
Q345B / S350GD cold-formed C section |
GB/T 6725 |
| Bracing (roof/wall) |
Ø20–25mm round steel with turnbuckle |
GB/T 699 |
| Tie rods |
Ø12–16mm round steel |
GB/T 699 |
| Type |
Thickness |
Application |
Thermal Performance |
| Single-skin steel sheet |
0.4–0.6mm |
Agricultural, open-sided |
Minimal |
| EPS sandwich panel |
50–100mm |
Warehouses, workshops |
U = 0.40–0.70 |
| Rock wool sandwich panel |
50–150mm |
Fire-rated, public buildings |
U = 0.25–0.45 |
| PIR sandwich panel |
50–150mm |
Cold storage, cold climate |
U = 0.18–0.25 |
| Single-skin + glass wool blanket |
50–100mm + liner sheet |
Large-span, budget-sensitive |
U = 0.35–0.50 |
Optional Features
- Overhead crane runway beams (up to 50T capacity)
- Mezzanine floor systems (steel deck + reinforced concrete)
- Ventilation: ridge vents, turbine ventilators, louvered sidewall openings
- Natural lighting: FRP skylight panels (translucent, UV-stabilized)
- Insulated sectional doors, high-speed roller doors, aircraft hangar sliding doors
- Rainwater gutter and downpipe systems
- Fire protection: intumescent coatings up to 2-hour rating
Frequently Asked Questions
- How long does it take from order to delivery?
- Typical timeline: design & engineering 15–25 working days + fabrication 25–50 working days + ocean freight (varies by destination; e.g., 22 days to West Africa, 30 days to Europe, 35 days to East Coast North America). Most projects arrive on site within 10–14 weeks of order confirmation.
- Can you handle the structural design and calculations?
- Yes. Our in-house engineering team produces a complete structural package — frame analysis, connection design, foundation reaction tables, and anchor bolt layouts — referenced to your local building code. We can also coordinate with your local engineer of record for plan review and permit submission.
- What about installation? Do you provide site supervision?
- We strongly recommend our site supervision service for first-time clients: an experienced erection supervisor travels to your site to guide your local crew through the assembly. For repeat clients with trained crews, the bolt-together system is designed for self-erection using our color-coded manual.
- Do you provide CE / UKCA certification?
- Yes. Our fabrication facility holds EN 1090-2 EXC3 certification (the highest execution class for steel structures). We issue a Declaration of Performance (DoP) and CE/UKCA marking for all shipments to the European Union and United Kingdom.
- What is the minimum order?
- There is no fixed minimum — we handle everything from a single 200㎡ farm shed to a 30,000㎡ multi-building industrial park. Pricing per square meter improves with volume, but we treat every project with the same engineering rigor.
- How is the steel packed and shipped?
- All components are bundled, labeled, and containerized with a detailed packing list keyed to the erection drawings. Bolts and small accessories are packed in clearly marked plywood crates. We use export-grade fumigated timber dunnage and VCI (volatile corrosion inhibitor) wrapping for ocean freight.
Get Your Project Started — 3 Simple Steps
- Step 1 — Send Your Requirements Share your building dimensions, location, and intended use. A rough sketch, satellite image, or reference photo helps — but even just "I need a 20m × 40m warehouse in Mombasa, Kenya" is enough to start.
- Step 2 — Receive Your Custom Proposal Within 2–3 working days, you'll receive a preliminary structural layout, a bill of materials with pricing, and a shipping estimate — all free of charge and with zero obligation.
- Step 3 — We Engineer, Fabricate, and Ship Once you approve the detailed shop drawings, fabrication begins. We'll keep you updated with progress photos and container tracking numbers until your steel arrives on site.