The main stages of building a steel structure workshop

Building a steel structure workshop building is a modern construction process that integrates precise design, factory-based manufacturing, efficient hoisting, and system integration. It combines advanced technology and streamlined processes to deliver high-quality, cost-effective, and sustainable buildings.

4. Main Structural Erection

Once the foundations have reached the required strength and the fabricated steel components are delivered to site, the project enters the core erection stage. This phase typically relies on large lifting equipment and follows a strict installation sequence: steel columns are erected first, followed by main beams and secondary beams, gradually forming a stable spatial framework. Throughout the installation process, continuous measurement and adjustment are required to ensure that verticality and levelness remain within allowable tolerances.

This stage best demonstrates the speed advantage of steel frame buildings. With the foundations ready, the erection of the main framework can be completed in a very short time, and the overall building shape quickly takes form—an efficiency that traditional masonry or reinforced concrete structures can hardly match.

5. Installation of the Enclosure System and Supporting Facilities

After the main structural frame is completed, the next step is the installation of the enclosure system. This includes the roofing system (roof panels, insulation layers, waterproofing layers, etc.) and the wall system (wall panels, doors, and windows). At the same time, internal components such as crane beams, runway beams, and floor decks (for multi-story buildings) are installed as required.

Mechanical, electrical, fire protection, and ventilation systems are coordinated and installed in parallel during this stage, ensuring that the building's functional systems are fully integrated with the structural framework.

Modern prefab workshop steel structure use a wide variety of enclosure system materials, such as profiled steel sheets and sandwich panels. These materials are lightweight, quick to install, and provide excellent thermal insulation, heat resistance, and sealing performance.

6.Completion Inspection and Maintenance
Once the entire project is completed, a thorough completion inspection is required to check if all parameters meet design specifications and regulatory standards. After the handover, regular inspections and maintenance are essential, focusing on the condition of connection joints, anti-corrosion coatings, and the enclosure system to ensure long-term safety and durability.

Throughout the entire construction process, choosing an experienced and technically competent engineering service provider is crucial. Junnan is your ideal partner. With a team of nearly 100 professionals and more than 10 in-house design engineers, we deliver integrated metal frame buildings solutions—from planning and design to construction and maintenance—ensuring efficiency, quality, and long-term value for our clients.