YOUR STEEL STRUCTURE ENGINEERING EXPERT
We are an international company specializing in steel structure construction and export, with over 15 years of experience in steel structure engineering. We have provided high-quality steel structure building solutions to more than 30 countries worldwide. Our company holds international quality system certifications and possesses integrated service capabilities encompassing design, manufacturing, construction, and export.
Custom Spatial Grid Structure Large Span Roof Construction
Custom spatial grid structure large span roof construction. Combined with a professional design team and standardized production processes, these systems ensure exceptional structural stability under complex loads and millimeter-level precision. We offer comprehensive, multi-dimensional customization tailored to specific project requirements, including architectural forms (such as irregular curved surfaces and large-span spaces), dimensional specifications (ranging from small industrial buildings to large-scale venues), and functional needs (such as natural lighting, ventilation, and thermal insulation). Through flexible and versatile grid configurations, these roofs infuse buildings with unique visual tension and a futuristic aesthetic, making them an ideal choice for innovative contemporary architectural design. Professional manufacturer of space frame structures for large-span projects. Double/triple-layer truss systems with hollow steel sections (Q355B/ASTM A572) and bolted spherical nodes. Spans 20–200m+. Any geometry: flat, curved, domed, free-form. CNC precision, hot-dip galvanized. 50+ year life. AISC/IBC/Eurocode compliant. ISO 9001 certified.

Customized Spatial Grid Structures Facilitate the Realization of Large-Span Roof Construction
Core Features & Advantages
Custom spatial steel grid roofs feature robust structural integrity, making them an ideal roofing solution for large-span buildings. They provide a comfortable, column-free, and open experience. They offer greater material efficiency and cost-effectiveness, with a wide variety of design options that suit various architectural styles. The products are built to last and require minimal maintenance, ensuring a stable and reliable user experience. Efficient assembly and one-stop delivery services provide a hassle-free and efficient solution for large-scale roofing projects. Steel grid roofs feature a column-free design, making them adaptable to a wide range of architectural needs.
♦ 200m+ clear span, column-free;
♦ 30% lighter, lower cost;
♦ Any shape (flat, curved, domed);
♦ Zero maintenance, 50+ years;
♦ Fast assembly, turnkey service.
Applications
The custom-engineered spatial grid roof structures are ideally suited for architectural projects that prioritize expansive openness, distinctive aesthetics, and long-term, low-maintenance durability. Designed to satisfy the most demanding aesthetic and formal requirements, these structures leverage their flexible customization capabilities and robust performance to achieve a perfect fit, meeting the roofing construction needs of a wide spectrum of high-standard buildings. They demonstrate exceptional performance in public structures—such as large-scale venues and commercial complexes—while also serving the specific design requirements of modern architectural typologies, including exhibition halls, theaters, and transportation hubs.
♦ Stadiums;
♦ Convention centers;
♦ Airports;
♦ Shopping malls;
♦ Factories;
♦ Hangars;
♦ Museums.
Product Parameter
| Products |
Prefabricated steel structure building |
| Type | H-beam, Column, Tie-rod, Truss,Box-column |
| Main Material | Q235B(ASTM A36,S235JR), Q355B |
| Surface treatment | Painting, Galvanized |
| Process-Cutting | Laser cutting, plasma cutting, flame cutting for intricate shapes |
| Forming | Rolling, and bending to meet complex structural designs |
| Welding | MIG, TIG, Submerged arc |
| Machining | Drilling, milling for precise fittings |
| Quality Control | QC inspection, third party inspection |
| Package | As requested |
Vision & Mission
We are committed to providing safe, efficient, and environmentally friendly solutions for global customers through continuous technological innovation and exceptional product quality, driving industry progress and collectively creating a better future.
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SHANDONG SHIJIE HEAVY INDUSTRY CO., LTD
Shandong Shijie Heavy Industry Co., Ltd. is located in the High-Tech Development Zone of Jining City, Shandong Province, the hometown of Confucius and Mencius. Covering an area of more than 120 mu (about 80,000 square meters)and with a registered capital of 120 million yuan, the company currently employs over 600 people. It is an integrated service enterprise engaged in general contracting of projects such as construction, municipal engineering, petrochemical engineering, pressure pipelines, and long-distance transmission pipelines. Additionally, it manufactures products including steel structures (space grids,trusses), pressure vessels, SF/FF double-layer oil tanks, skid-mounted refueling devices, and various metal containers.Shandong Shijie has obtained over 80 qualifications and honors, including certifications for the ISO9001 quality management system, ISO14001 environmental management system, ISO45001 occupational health and safety management system, as well as the National Industrial Product Production License.
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