Custom Size Steel Structure With Mezzanine Floor For Office Storage Integrated Building

The custom-size steel structure building with mezzanine floor is a multi-functional integrated industrial construction solution that combines office space, storage area and production auxiliary areas into one single building. Adopting high-strength Q235B and Q355B hot-rolled steel frames, the whole structure is fully prefabricated in the factory with precise dimensional control and standardized anti-corrosion surface treatment. Different from traditional single-layer warehouses, this building adds a stable steel mezzanine floor inside, which greatly improves interior space utilization without expanding the building’s external footprint. All sizes, heights, mezzanine spans and functional zones can be fully customized according to customer site conditions, usage requirements and project budgets. With bolted connection assembly, the structure features stable load-bearing performance, strong seismic resistance and excellent overall durability, making it an ideal multi-purpose building for modern factories and logistics enterprises.

• 1. Dual-Layer Integrated Function (Office + Storage) This integrated steel building realizes scientific zoning of upper and lower spaces. The ground floor can be used for goods stacking, workshop operation, cargo handling and daily storage work, while the mezzanine floor is specially designed for office rooms, staff rest areas, meeting rooms, management offices and sample display areas. It perfectly separates working area and storage area, realizing unified production, storage and office management.
• 2. Highly Customizable Overall Size & Layout The whole building supports fully personalized customization, including building length, width, height, mezzanine span, floor thickness, partition position and door/window layout. Customers can freely adjust the proportion of office area and storage area to adapt to different factory scales, storage volumes and office staffing needs.
• 3. High-Load-Bearing Mezzanine Floor System The internal steel mezzanine adopts reinforced beam and girder structural design with stable uniform force distribution. The floor platform is equipped with anti-deformation steel decking and durable bearing plates, which can bear office equipment, daily office loads and light storage loads. The mezzanine structure has high safety factor, no shaking and no deformation during long-term use.
• 4. Space-Saving & High Space Utilization Rate By adding a reasonable mezzanine structure inside the single-layer building, it effectively doubles the usable area without increasing exterior land occupation. It solves the problem of insufficient factory space, greatly improves land utilization and saves overall construction and land investment costs for enterprises.
• 5. Stable Steel Frame & Long Service Life All main steel frames undergo strict sandblasting rust removal and multi-layer anti-corrosion painting treatment. The optimized structural joint design ensures strong wind resistance, earthquake resistance and pressure resistance. The overall structure is stable, durable, anti-aging and low in maintenance cost, suitable for long-term industrial and commercial use.
• 6. Fast Assembly & Removable Structure All steel components are prefabricated with unified standards. On-site installation only requires bolt assembly, which greatly shortens the construction cycle. The whole building can be disassembled, moved and reused, bringing high flexibility and reusability for enterprise factory layout adjustment and project expansion.
• 7. Complete Supporting Functional System The building can be matched with thermal insulation sandwich wall and roof panels, waterproof system, ventilation system, lighting system, fireproof facilities, staircases and guardrails. It realizes heat insulation, sound insulation, waterproof, dustproof and safe ventilation, creating a comfortable office environment and a dry and safe storage environment.

The wall and roof enclosure system is the core protective part of large-span prefabricated steel warehouses. It adopts integrated customized sandwich panel solutions, perfectly matching the main steel frame structure. The whole system features high strength, excellent thermal insulation, waterproof sealing, weather resistance and easy installation. It effectively protects the internal steel structure and stored goods from external wind, rain, snow, temperature change and corrosion, realizing long-term stable enclosure performance for industrial and logistics buildings.

• 1. High-Strength Sandwich Panel Structure The wall and roof panels adopt high-density fireproof/thermal insulation core material with double-sided color steel sheets. The composite structure provides strong compression resistance and impact resistance. The panels are not easy to deform, dent or crack under long-term wind and outdoor pressure, maintaining flat and neat appearance for years.
• 2. Excellent Thermal Insulation & Sound Insulation Performance The closed-cell core structure effectively blocks external heat transfer and air convection. It greatly reduces indoor temperature fluctuation in summer and winter, realizing energy-saving and constant-temperature storage environment. Meanwhile, the composite panel structure absorbs and isolates external noise, improving indoor working and storage comfort.
• 3. Integrated Waterproof & Sealed Joint Design All wall and roof panel joints adopt overlapping plug-in assembly and special waterproof sealing strips. The optimized joint structure avoids exposed gaps, effectively preventing rainwater penetration, dust invasion and moisture accumulation. The whole roof system forms a complete drainage slope and drainage path to ensure zero water leakage in rainy seasons.
• 4. Super Weather Resistance & Anti-Aging Surface Performance The outer color steel sheet adopts high-quality PE or PVDF coating with professional surface passivation treatment. It provides strong UV resistance, anti-fading, anti-scratch and anti-corrosion ability. The enclosure system can adapt to high temperature, heavy rain, strong wind, coastal humidity and other harsh environments, ensuring long service life and low maintenance cost.
• 5. Fast Assembly & Flexible Customization Standard modular panel design allows quick splicing and bolt fixing without complex on-site processing. The wall and roof system supports customized thickness, color, height and fireproof grades, which can perfectly match different warehouse spans, building heights and project usage requirements.