Explore our primary structural configurations engineered for optimal spatial utilization, seismic compliance, and rapid site erection.
The industrial warehouse landscape is undergoing a massive paradigm shift. As global logistics networks, robotic fulfillment centers, and heavy-manufacturing facilities expand, the demand for column-free interior spaces has skyrocketed. Clear-span and large-span steel portal frame designs represent the frontier of modern structural engineering, allowing for uninterrupted internal storage, complex conveyor layouts, and maximum volumetric efficiency.
By shifting structural loads to the exterior envelope of the steel structure, project owners eliminate internal support columns. This optimization enhances forklift maneuvers, accommodates automatic storage and retrieval systems (ASRS), and ensures adaptability for future operational changes. Modern architectural codes now dictate rigorous calculations regarding structural weight, wind load parameters, and seismic mitigation to protect assets globally.
100% column-free layout maximizes storage capacity and configuration possibilities, yielding up to 35% higher space utilization compared to conventional frame designs.
Engineered to withstand high-grade seismic forces (up to Richter Magnitude 8.0) and extreme wind loads (up to 280 km/h) using high-yield hot-rolled H-beams.
High-performance structural engineering relies on material science, optimization models, and strict quality control.
Utilizes tapered H-sections engineered through finite element analysis (FEA). This maximizes steel distribution exactly where bending moments are highest, reducing unnecessary weight and shipping costs.
Incorporate heavy-duty rod, angle, or portal bracing on roof and wall systems to transfer horizontal wind forces and crane braking forces safely to the foundations.
Tension-controlled ASTM A325 or A490 structural bolts are utilized at beam-to-column splice connections, securing structural joints against fatigue and dynamic load variations.
| Structural Parameter | Standard Specification | High-Load / Extreme Climates Option |
|---|---|---|
| Primary Structural Steel | Q235B / ASTM A36 / Equivalent | Q355B / ASTM A572 Grade 50 (High Tensile) |
| Corrosion Protection | Alkyd Primer (Double Coat), 60-80μm DFT | Hot-Dip Galvanized (Min. 600g/m²) / Epoxy Paint System |
| Secondary Framework (Purlins) | Pre-galvanized Z & C Purlins, 120-275g/m² | High-yield structural purlins with customized spacing |
| Cladding Options | 0.5mm single color-coated steel sheet | 50mm - 150mm PIR/Rockwool Sandwich Panels (Fireproof) |
| Design Standard Code | GB50017 (China National Code) | AISC, IBC, Eurocode 3 (EC3), AS/NZS 1170 |
Large-span steel warehouses face diverse environmental hazards, ranging from high humidity in coastal regions (C4/C5 marine environments) to chemical exposure inside manufacturing facilities. Preserving structural integrity over a 50-year service life requires advanced metallurgical surface prep and coating applications.
Every structural member fabricated undergoes automatic centrifugal shot blasting to SA 2.5 grade cleanliness prior to paint application. Our high-build protective systems include zinc-rich primers, micaceous iron oxide (MIO) barrier paints, and polyurethane finish coats. For maximum corrosion protection, hot-dip galvanization is recommended, coating both internal and external steel profiles in a protective zinc alloy layer.
Thermal envelope requirements are managed with insulated sandwich cladding systems (Polyurethane/PIR or Rockwool). This ensures stable indoor temperatures, reduces HVAC costs, and delivers structural fire ratings meeting international standards.
Enterprise-level global supply chains require absolute compliance with international structural codes, on-time shipping coordination, and transparent material testing documentation.
Every batch of raw steel from our partner mills comes with certified Mill Test Certificates (MTC) conforming to EN 10204 3.1, detailing mechanical properties and chemical compositions.
All load-bearing weld lines undergo Non-Destructive Testing (NDT), including Ultrasonic Testing (UT) and Magnetic Particle Testing (MT), ensuring zero defects at tension joints.
Custom component packing schemes utilize nested racking bundles to maximize sea container space, preventing structural deformation during long-distance maritime transit.
A premier manufacturer and designer of pre-engineered steel buildings, delivering customized industrial facilities to global markets.
Dongguan Metro Build Co., Ltd. is a leading China prefabricated warehouse building manufacturer specializing in the design, production, and supply of high-performance steel warehouse solutions for customers worldwide. With extensive experience in the steel structure industry, the company is committed to delivering durable, cost-effective, and customized building systems that meet the evolving needs of industrial and commercial sectors.
The company offers a comprehensive portfolio of products, including prefabricated warehouse buildings, pre-engineered steel structures, logistics centers, industrial workshops, storage facilities, distribution centers, and customized steel building solutions. Designed for fast installation and long-term performance, Metro Build's products are widely used in manufacturing, logistics, agriculture, retail, and infrastructure projects.
Dongguan Metro Build Co., Ltd. operates advanced manufacturing facilities equipped with modern steel fabrication machinery and precision production lines. Supported by a skilled engineering and quality control team, the company provides one-stop services covering project consultation, structural design, manufacturing, quality inspection, packaging, and global shipping coordination.
Quality and innovation are at the core of Metro Build's operations. The company strictly follows international manufacturing standards and continuously improves its production processes to ensure superior structural strength, weather resistance, and energy efficiency. By adopting prefabrication technologies, Metro Build helps customers significantly reduce construction time, labor costs, and on-site installation complexity.
Driven by the principles of quality, reliability, and customer satisfaction, Dongguan Metro Build Co., Ltd. has established long-term partnerships with clients across Asia, Europe, the Middle East, Africa, and the Americas. The company remains dedicated to providing innovative steel warehouse solutions that create lasting value for global customers.
How large-span designs are tailored to specific global industries to optimize workflow, hygiene, thermal control, and safety.
Configured with a high eave height (up to 18 meters) and clear-span structures, maximizing space for automated mezzanine floors, multi-tier racking systems, and overhead sorting conveyor lines.
Engineered to support heavy overhead gantry cranes (5 tons to over 50 tons capacity) utilizing built-in crane runway beams, rigid bracket columns, and fatigue-resistant dynamic joints.
Corrosion-proof components suited for poultry facilities, animal housing, and cold storage units. Designed to coordinate with insulated sandwich panels and ventilation systems.
Adapting to carbon-neutral construction mandates, digital-twin design tools, and green-building initiatives.
We model all structural elements using Tekla Structures. This enables collision detection, ensures assembly-point accuracy down to the millimeter, and minimizes material waste during manufacturing.
Large-span warehouse roofs present massive surface areas. Our roofing systems are engineered with structural load reserves (extra 15-25 kg/m²) to easily accommodate solar photovoltaic panel arrays, facilitating green energy self-sufficiency.
By shifting structural fabrication from the construction site to our controlled factory floor, project waste is reduced to less than 1%. Steel components are 100% recyclable, enhancing the lifecycle value of the project.
Leveraging flat-packing and modular kit designs, we minimize shipping volume, lowering transit emissions and overall freight expenses.
Select from our specialized pre-engineered structures designed for logistics, industrial manufacturing, and global commercial applications.
Inside Metro Build's structural fabrication lines, material handling hubs, and successfully deployed projects.
Clear, detailed answers regarding the engineering, procurement, and deployment of large-span systems.
Metro Build
