Project Overview

This steel structure warehouse project is located in the Riyadh Industrial City, Saudi Arabia. The facility serves as a regional logistics and distribution center for a major consumer goods company operating across the Kingdom. The client required a large-format storage building capable of accommodating high-bay racking systems, articulated truck loading, and climate-controlled zones for temperature-sensitive goods — all within a construction schedule that allowed operations to commence within four months of ground-breaking.

Meituo Buildings supplied the complete prefabricated steel structure system including the primary portal frame, secondary framing, insulated roof and wall panels, industrial doors, ventilation system, and all structural connection hardware. The project demonstrates how a prefabricated steel solution can meet the demanding operational and environmental requirements of a Saudi Arabia logistics warehouse.

Project Specifications

The warehouse has a total floor area of 8,400 square meters, with a single-span clear interior width of 50 meters and a building length of 168 meters arranged in seven portal frame bays of 24 meters each. The eave height is 10.5 meters, providing sufficient clear height for six-level pallet racking systems throughout the storage area.

The primary structural frame uses welded H-section steel columns and rafters fabricated from Q355B structural steel. All primary steel members were shot-blasted to Sa 2.5 cleanliness standard and coated with a two-coat epoxy primer and polyurethane topcoat system providing 200 microns total dry film thickness. This coating system was specified for the inland desert environment of Riyadh, where UV exposure and occasional sand abrasion require a durable and flexible coating.

Secondary framing consists of galvanized C-section purlins at 1.5-meter centers and Z-section girts on the wall frames, supporting the roof and wall panel systems.

Insulation and Climate Design

Riyadh's extreme summer climate — with outdoor air temperatures regularly exceeding 45 degrees Celsius and solar radiation intensity among the highest in the world — made thermal performance a critical design parameter for this project. The roof cladding system uses 100-millimeter polyurethane sandwich panels with a high-reflectivity white PVDF-coated exterior face, chosen to minimize solar heat absorption and reduce the cooling load on the building's HVAC system.

Wall cladding uses 75-millimeter PU sandwich panels on all four elevations. The west-facing wall, which receives the most intense afternoon solar radiation in the Riyadh climate, was given additional consideration in the thermal modeling, with the 75-millimeter specification confirmed to limit heat flux to within the design parameters for the air conditioning system.

Ridge ventilation openings of 600 millimeters width run continuously along the full length of the building ridge, allowing hot air that accumulates near the roof apex to escape. Motorized wall louvers on the north and south elevations provide adjustable natural cross-ventilation for periods when outdoor temperatures allow.

A dedicated air-conditioned zone of 1,200 square meters at the north end of the warehouse maintains a temperature of 18 to 22 degrees Celsius for pharmaceutical and cosmetics storage. This zone uses 150-millimeter PU sandwich panel walls and a sealed vapor barrier system to maintain climate control efficiently.

Loading Bay and Door System

The warehouse features 12 recessed loading docks on the east elevation, each fitted with a 4.5-meter wide by 4.8-meter high sectional overhead door and a hydraulic dock leveler. The dock recesses are designed for standard Saudi Arabia articulated truck configurations. Two drive-through ground-level access openings of 6 meters width and 5.5 meters height on the north and south elevations accommodate forklift and small vehicle access.

The loading dock canopy extends 4 meters from the building face, providing shade for drivers and dock workers during the intense summer months and protection for goods from the occasional heavy rainfall that occurs in Riyadh during winter.

Foundation and Site Conditions

Geotechnical investigation of the Riyadh Industrial City site identified medium-density sand and gravel subsoil with a bearing capacity of 150 kilonewtons per square meter at 1.5 meters depth. Isolated pad foundations were designed for each column position, with anchor bolt cages cast into reinforced concrete pads of 1.8 meters by 1.8 meters plan and 700 millimeters depth.

The concrete mix specification included sulfate-resisting cement appropriate for Riyadh's soil conditions, where elevated sulfate concentrations in the subsoil can cause expansive damage to standard concrete over time. Column base plates are elevated 150 millimeters above the finished floor level and embedded in a concrete plinth to keep structural steel away from direct contact with soil and floor washing water.

Construction Timeline

The complete construction sequence from site mobilization to handover was completed in 98 days. Key milestones included foundation concrete pour at day 14, foundation curing and inspection at day 28, primary steel frame erection commencing at day 32, primary frame complete and plumb-checked at day 48, roof panel installation complete at day 58, wall panels and doors installed at day 72, services and finishing complete at day 90, and final inspection and handover at day 98.

The accelerated construction schedule was made possible by the complete factory prefabrication of all steel components. The erection crew of 14 workers with one 50-ton mobile crane assembled the entire primary frame in 16 days, with no on-site cutting, drilling, or welding required.

Project Outcome

The completed warehouse has been in continuous operation since handover, serving as a regional distribution hub for Saudi Arabia's western and central regions. The client has reported that the insulated building envelope reduces air conditioning energy consumption by approximately 35 percent compared to a similar building the client previously operated with single-layer steel sheet cladding and no insulation.

The project demonstrates Meituo Buildings' capability to supply and technically support large-scale prefabricated steel warehouse projects in Saudi Arabia, including engineering to Saudi Building Code requirements, appropriate material specifications for the Saudi climate, and coordination of export documentation for efficient customs clearance at Saudi ports.