Designed for cattle barns, horse stables, poultry houses, and other livestock enclosures—engineered for superior ventilation and structural strength.
Pre-Engineered Agricultural Steel Buildings | Barn & Warehouse Manufacturer
Clear-span flexibility — up to 80m width, no interior columns, so you configure the floor plan, not the building
Built to withstand the elements — engineered for high wind loads and corrosive farm environments with galvanized or painted corrosion protection
Low maintenance, long lifespan — no rot, no pests, no repainting every few years; 50-year structural design life
Custom-sized to your site — length, height, bay spacing, door locations, and insulation tailored to your operation
Fast delivery & installation — factory-direct manufacturing means shorter lead times and predictable project timelines
From family farms to commercial agricultural operations worldwide, our steel barn and warehouse structures are designed to outlast the weather—and the competition.
Livestock Steel Building & Poultry House Steel Structure
Agricultural Steel Building
Clear-span interior with no interior columns—maximizing usable floor space for feed, grain, farm equipment, and machinery storage.
Industrial Warehouses & Workshops
Engineered for factories, production workshops, and warehouses—fast to erect and built to handle heavy floor and roof loads.
Steel Storage Shed & Steel Barn Building
Steel storage sheds, barns, and grain storage buildings—clear-span, corrosion-resistant, and custom-built for farms, ranches, and industrial operations.
| Component | Material / Specification | Function | Key Features |
| Primary Steel Frame | ASTM A36, ASTM A572 Grade 50, ASTM A992 H-Beam or Box Column | Carries the building's main structural loads | Load-tested H-beams and box columns handle heavy roof, crane, and agricultural loads with consistent structural performance |
| Secondary Structure | Galvanized C Purlin / Z Purlin | Transfers roof and wall loads to the primary frame | Cold-formed galvanized purlins cut dead weight while maintaining spanning strength—lighter framing without sacrificing load capacity |
| Roof System | Color Steel Sheet or Insulated Sandwich Panel | Sheds weather and regulates interior temperature | Waterproof steel roofing with optional sandwich-panel insulation; cuts heat gain and lowers heating/cooling costs year-round |
| Wall System | Steel Cladding or Sandwich Panel | Encloses the building and shields the interior | Impact-resistant steel cladding with insulation options; panel thickness and exterior finish specified to your climate and aesthetic needs |
| Bracing System | Round Steel Bar, Angle Steel, Steel Rod Bracing | Stiffens the frame against lateral forces | Diagonal and cross bracing transfers wind and seismic loads into the foundation, keeping the frame rigid in high-wind and seismic zones |
| Connection System | High-Strength Bolts, Nuts, and Fasteners | Joins all prefabricated components on site | Factory-torqued high-strength bolts deliver rigid, vibration-resistant joints; pre-drilled holes mean faster, more accurate erection |
| Surface Protection | Anti-Rust Painting or Hot-Dip Galvanizing (HDG) | Shields steel from corrosion and oxidation | HDG or industrial paint coatings stand up to humidity, salt air, and the ammonia-rich atmosphere of livestock buildings |
| Ventilation System | Ridge Vents, Louvers, Ventilation Windows | Moves fresh air through the building and controls heat buildup | Ridge vents, wall louvers, and operable windows work together to exhaust hot air, reduce condensation, and maintain healthy airflow for livestock and stored goods |
| Door System | Sliding Doors, Rolling Doors, Bi-Fold Doors | Provides access for vehicles, machinery, and animals | Oversized openings accommodate tractors, trucks, and equipment; sliding, rolling, or bi-fold styles selected for your clearance and frequency-of-use needs |
| Drainage System | Steel Gutters and Downpipes | Collects and channels roof runoff away from the building | Sized-to-calculate gutters and downpipes move rainwater off the roof and away from the foundation, preventing pooling and soil erosion around the structure |
| Process | Equipment | Description |
| Cutting | CNC plasma and flame cutters, shearing equipment | Carries out precise cuts on steel plates and profile sections. Shearing tools handle thinner steel sheet materials. |
| Forming | Roll‑former, press brake, bending machinery | Produces C‑ and Z‑shape purlins, flashing pieces, gutters and other cold‑rolled formed parts. |
| Welding | Submerged‑arc welding unit, CO₂/MAG welder, manual arc welding gear | Submerged‑arc welding fabricates built‑up H‑beams and columns; CO₂/MAG welding suits lighter components; manual welding works for connecting plates and local joint work. |
| Drilling & Punching | CNC drill press, punching machine | Creates precisely positioned bolt holes to join steel structural members. |
| Surface Treatment | Shot‑blasting unit, grinding tools, hot‑dip galvanizing production line | Cleans raw surfaces, smooths weld seams, and applies anti‑corrosion finishes via hot‑dip galvanising. |
| Assembly | Assembly workbench, measuring jigs | Runs trial fitting and dimension checks ahead of packaging and dispatch. |
| Test Item | Standard & Description |
| 1. Salt Spray Test | ASTM B117 (Neutral Salt Spray) / ISO 11997-1 (Cyclic Corrosion). Evaluates corrosion resistance for marine and coastal environments. |
| 2. Adhesion Test | ASTM D3359 (Cross-Cut Adhesion) and ASTM D4541 (Pull-Off Adhesion). Verifies coating adhesion to the steel surface. |
| 3. Humidity Resistance Test | ASTM D2247. Evaluates coating performance under high humidity to reduce blistering and coating failure. |
| 4. UV Weathering Test | ASTM G154. Simulates long-term UV exposure to assess color retention and coating durability. |
| 5. Coating Thickness Test | ASTM D7091. Measures dry film thickness to ensure coating meets project specifications. |
| 6. Impact Resistance Test | ASTM D2794. Evaluates coating resistance to mechanical impact without cracking or peeling. |
Overseas Branch Network & Multilingual Support (Spanish, Russian and more)
We work alongside our overseas offices to cater to international clients, with service available mainly in English and Spanish.
Our team helps smooth out customs formalities, export paperwork and all shipping‑related requirements. This keeps your shipment on schedule and speeds up your local import procedures.
Ready Inventory for Short Lead Times
We hold substantial stock of standard hot‑rolled steel raw materials, covering H‑beams, I‑beams and assorted steel‑structure fittings.
Thanks to our sufficient stock levels, lead times are kept brief. Clients can source dependable products without long waits, which works well for time‑sensitive urgent projects.
Thoughtful Product Packaging
Every item comes with standard seaworthy packaging. Bespoke packaging solutions can also be arranged for extra protection.
Such packaging safeguards goods during loading, stops components from shifting over long‑haul ocean transit, and minimises damage by the time cargo reaches your destination port.
Treatment on surface Display: Epoxy zinc-rich coating, Galvanized(hot dip galvanized layer thickness≥85μm service life can reach 15-20 years), black oiled, etc.
Black Oiled
Galvanized
Epoxy Zinc-rich Coating
Packing Details
All steel parts are well packed for surface finishing and shape maintaining during handling and transportation. Main members are wrapped in watertight plastic film or anti-rust paper, while bolts, connectors and other small accessories are put in wooden boxes. For your convenience, each package is labeled so you can identify, unload and install safely and efficiently on site.
Delivery
Pre-Engineered Building are delivered via container vessel or bulk vessel depending on the size of the project, the dimensions and the destination. Large and bulky items are tightly strapped with steel straps or wooden crats to prevent moving in the journey. Every order is processed following international transportation standards to be delivered safely and on-time.
1. What steel grades do you use?
Our primary frames use ASTM A36, A572 Grade 50, and A992 structural steel. Secondary members are cold-formed galvanized C/Z purlins. All material comes with mill test reports (MTR) on request.
2. Can you customize the building size?
Yes. Span, length, eave height, bay spacing, and door locations are all engineered to your site and operation. Typical clear-span widths range from 10m to 80m; length is extendable in standard bay increments.
3. How do I get a quote?
Send us your building dimensions, intended use (livestock, storage, grain, workshop), local wind/snow load requirements, and destination port. We return a detailed quotation within 24–48 hours.
4. What is the lead time?
Standard kits ship in 25–35 working days after deposit and drawing approval. Larger or heavily customized projects may take 40–50 days. We confirm an exact shipping schedule at order confirmation.
5. Do you provide installation?
We supply fully pre-drilled, pre-cut kits with detailed erection drawings and a parts list. Most clients hire a local crew; we can also arrange an on-site supervisor for guidance if needed. A typical 40×60m building goes up in 2–4 weeks.
6. What wind and snow loads can the building handle?
Every frame is engineered to your local building code. We regularly design for 120–180 km/h wind speeds and 0.5–1.5 kN/m² snow loads. Provide your site's code or location and we size the structure accordingly.
7. How long will the building last?
With standard hot-dip galvanized (HDG) primary framing and proper maintenance, design life is 50 years. Paint-finished frames in normal environments typically last 20–30 years before first repaint.
8. Do you offer insulation?
Yes. Roof and wall sandwich panels (EPS, rock wool, or PU) are available in 50–200mm thickness. For uninsulated clipper buildings, we can supply fiberglass blanket insulation with vapor barrier.
9. What certifications do you have?
We are ISO 9001 certified. Our welding procedures conform to AWS D1.1. CE marking and third-party inspection (SGS / BV) are available for EU and Middle East projects on request.
10. Can the building be used for livestock?
Absolutely. We add ridge vents, wall louvers, curtain walls, and corrosion-resistant HDG framing to handle ammonia and humidity. Sliding or bi-fold doors can be sized for animal movement and feed trucks.
11. How is the building shipped?
Components are bundled and containerized (20GP / 40GP / 40HQ) for sea freight. We provide a packing list and container loading plan so your team can unload and inventory efficiently.
12. What payment terms do you accept?
Standard terms are 30% T/T deposit, 70% balance against copy of B/L. L/C at sight is available for orders above USD 50,000. Other terms can be discussed for established clients.
ROYAL STEEL GROUP
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service
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