Custom Steel Structure Building Manufacturer for Industrial, Commercial and Agricultural Projects

Main Structure

The main structure is the backbone of a steel warehouse, composed of engineered H-section steel columns and beams that carry all vertical and lateral loads — including roof weight, wind, snow, and seismic forces. Proper design of the primary frame enables long clear spans up to 40 m, maximizing usable interior space for racking, heavy equipment, or overhead cranes.

At Showhoo, we customize main frame specifications based on your project's span, height, wind and seismic requirements, ensuring both structural safety and cost efficiency. Structural steel grades like Q235B or Q355B are selected to match load demands and local building codes.

• Clear-span interior
• High structural strength
• Reduced foundation cost

Secondary Structure

Secondary members — including roof and wall bracing, tie rods, fly bars, and sag rods — work with the primary frame to maintain geometric stability and resist wind and seismic lateral forces. Without adequate bracing, warehouses can experience excessive deformation under load.

A properly engineered secondary system improves structural rigidity, enhances safety under extreme weather, and limits service-life deformation. Showhoo offers painted or hot-dip galvanized secondary components for corrosion protection based on environment and use.

• Increased lateral stability
• Reduced vibration & sway
• Improved performance in harsh environments

Roof & Wall Purlin

Roof and wall purlins are cold-formed C or Z-section steel members that transfer loads from the cladding to the primary frame. Their spacing, profile, and coating directly influence panel support, structural durability, and installation efficiency.

At Showhoo, purlins are engineered based on span, wind load and roof slope, with galvanized coatings tailored to environmental conditions — ensuring long-term corrosion resistance and minimal maintenance.

• Panel load transfer
• Structural system integration
• Corrosion resistance

Roof & Wall Panel

Roof and wall panels form the weather-resistant exterior envelope of the warehouse. Options include economical corrugated steel sheets or insulated sandwich panels with EPS, PU, Rock Wool, or Glass Wool cores.

Single steel sheets are ideal for simple dry storage, while insulated panels provide better thermal performance for climate-controlled operations such as cold storage or sensitive goods. Proper panel selection enhances energy efficiency, indoor comfort, and overall weather protection.

• Weather and moisture protection
• Thermal insulation options
• Improved energy efficiency

Fasteners & Accessories

Fasteners and accessories — including high-strength bolts, self-drilling screws, flashings, ridge caps, sealants, gutters, and trims — connect and seal every component of your steel warehouse.

High-strength bolts ensure robust structural connections, while quality flashings and sealants prevent water ingress and corrosion. A complete accessory system reduces installation time, improves weather resistance, and protects long-term performance.

• Secure structure connections
• Weather sealing & drainage
• Reduced field modifications

Doors & Windows

Doors and windows play critical roles in warehouse operations — from access efficiency to ventilation and daylighting. Options include large rolling shutter doors for forklifts and vehicles, sliding doors for interior workflows, aluminum alloy windows for ventilation, and FRP skylights to improve natural light.

Choosing the right door and window systems can enhance workflow, reduce lighting and HVAC costs, and improve worker comfort and safety.

• Efficient access and logistics flow
• Natural ventilation & daylighting
• Reduced operational costs