Prefabricated Quick Assembly Steel Industrial Prefabricated Metal Prefab Factory Building Workshop Shed Beam Hangar Warehouse Column Building Steel Structure
Project Case: 18×36m Open-Front Steel Shed in Spain
Project Overview:
- This project involved the design, fabrication, and supply of a customized open-front steel shed (Dimensions: 18m width × 36m depth × 4m height) for a client in Spain. The structure features three-sided cladding (with one 36m side fully open) and a complete roofing system, ideal for industrial storage, logistics, or workshop use.
Key Features & Materials
Category | Specifications | Purpose/Advantage |
Main Structure | Q355B H-Beams (fabricated, cut, assembled, rectified) | High-strength frame for structural integrity and load-bearing capacity. |
Surface Treatment | Shotblasted to SA 2.5 grade; primer: red-lead paint, topcoat: mild-grey paint | Superior corrosion resistance, suitable for industrial environments. |
Cladding | Roof & Wall: 0.5mm single metal sheets; Galvanized C180×2.0mm purlins | Lightweight yet durable; galvanized purlins prevent rust and extend lifespan. |
Design | Open-front (36m side) + three-sided walls | Optimal accessibility for vehicles/machinery and natural ventilation. |
Fasteners | M20 (10.9S) high-strength bolts; M24×850mm anchor bolts; M12/M16 bolts | Secure connections; anchor bolts provide stability against wind/uplift forces. |
Accessories | Φ12 tied rods, ridge caps, gutters, Φ110 downpipes, screws, rivets, silicone | Complete weatherproofing and drainage solution; ensures structural rigidity. |
Why This Solution Worked
- Customization: The open-front design met the client’s need for unrestricted access and airflow.
- Durability: SA 2.5 shotblasting + dual-layer painting and galvanized purlins ensure longevity in harsh conditions.
- Cost-Efficiency: Pre-fabricated components reduced on-site labor time and costs.
- Full Package: All accessories (drainage, fasteners, sealants) were included for seamless installation.
Value Delivered
- Quick Deployment: Pre-engineered components enabled fast assembly.
- Low Maintenance: Robust materials minimize future upkeep.
- Compliance: Materials and processes align with European industrial standards.
Interested in a similar solution? We provide end-to-end steel structure packages tailored to your needs.

What info is needed for a custom building?
To design and build a custom steel structure, you typically need to provide:
- Intended Use: What will the building be used for? (Warehouse, office, factory, etc.)
- Size & Dimensions: Desired length, width, height (eave height & peak height).
- Location: Site address and conditions (soil type, wind speed, snow load, seismic zone - critical for design).
- Layout Requirements: Where do you need doors, windows, cranes, mezzanines, offices, columns (if any specific placement needed)?
- Load Requirements: What weights will the floors/roof need to support? (Storage, equipment, vehicles, people, potential cranes).
- Cladding Preferences: Type of wall and roof covering (metal panels, brick, etc.), insulation needs.
- Foundation: Any existing foundation, or will a new one be built? (Impacts design).
- Budget & Timeline: Rough estimates help guide the design and feasibility.
- Special Requirements: Cranes, ventilation systems, specific clearances, fire rating needs, aesthetic preferences.




Key Advantages:
- Strong & Durable: Steel is very strong for its weight and resists forces like wind and earthquakes well. It doesn't rot or get eaten by insects.
- Fast Construction: Components are pre-fabricated off-site. On-site assembly is quick, reducing overall project time.
- Design Flexibility: Steel allows for large open spaces without many supporting columns (long spans) and complex architectural shapes.
- Cost-Effective (Often): Faster construction saves labor costs. Predictable material costs and potential for reuse/recycling add value.
- Lighter Weight: Weighs less than concrete, meaning smaller, less expensive foundations.
- Potential for Adaptability: Easier to modify or expand later compared to some other structures.
- Sustainable: Steel is highly recyclable.



Installation Process Explained
Our steel structure building installation follows a standardized and efficient 12-step process:
Prepare the concrete base according to the structural load requirements and install the pre-embedded anchor bolts as per the foundation construction drawings.
Erect the steel columns using a truck crane, with one worker guiding and 3-4 workers assisting. Secure each column onto the anchor bolts and add temporary bracing.
After two adjacent steel columns are installed, begin installing the main roof beams to connect and stabilize the structure.
Install roof and wall purlins after completing the column and beam installation. Bolt them securely onto the main structure to support cladding panels.
Reinforce the frame by installing horizontal tie rods between purlins for added stability.
Install the gutter system along the eaves to ensure proper drainage and prevent water accumulation.
Attach wall sheets to wall purlins with self-tapping screws, then install roof sheets. For insulated buildings, fix sandwich panels to both walls and roof.
Install covers at corners, eaves, windows, and doors; fit windows and doors in place; conduct a final inspection - your steel building is ready for use.