1. Start with the application

The product information describes this building for steel structure workshops, industrial steel structure warehouses and prefab warehouse buildings. If your project is one of these types, it is worth looking at the specification below. If it is a different type, such as a multi-storey occupied building or a structure with special loads, don't assume the product fits. Send your drawings and requirements first and ask for a project-specific review.

2. Check the design standards against your project location

The published description lists these Chinese design norms as common references:

• "Steel Design Code" (GB50017-2003)
• "Cold-formed steel structure technical specifications" (GB50018-2002)
• "Construction Quality Acceptance of Steel" (GB50205-2001)
• "Technical Specification for welded steel structure" (JGJ81-2002, J218-2002)
• "Technical Specification for Steel Structures of Tall Buildings" (JGJ99-98)

The product summary also says "GB standard." Buyers in the United States, the Middle East, Europe or Southeast Asia should ask their local engineer or authority whether a GB-based design is accepted, or whether the design must be checked against local codes. You should also confirm which edition of each standard will be used for your project. The source material does not state compliance with any non-GB code, and it lists no certifications for this building.

3. Main structure and steel grades

The summary and the specification table list slightly different grades: Q345 appears in one and Q355 in the other. Ask for the exact grade of each member to be confirmed in the quotation and in the design calculations.

4. Corrosion protection

The listed anti-rust options are hot dip galvanized or anti-rust painting. The summary also mentions galvanized surface treatment. Choose based on your site's exposure, such as coastal, humid or industrial conditions. Then confirm in writing which option applies to which members, along with any coating thickness requirement your project needs. The source material gives no coating thickness values.

5. Bracing and bolts

• Bracing: X-type, V-type or other bracing types, made from round bar, angle or pipe.
• Bolts: high-strength bolts, normal bolts and foundation bolts.

Check the bracing layout and bolt grades against your structural design, especially where wind or seismic loads govern.

6. Building envelope and accessories

If you need thermal insulation, sandwich panels are the listed alternative to single-layer sheet. The source does not give panel thickness or insulation values, so put your required performance in your request for quotation.

7. Characteristics stated in the product description

The product description lists these characteristics of prefab warehouse steel structure buildings:

• Higher reliability of steelwork
• Good resistance to vibration (earthquake) and impact
• A higher degree of industrialization
• Steel that can be assembled quickly and accurately

These are general product statements, not test results for a specific project. Seismic and load performance for your site has to come from project design calculations.

When this product may not apply

• Your jurisdiction requires a design under a non-GB code and you can't arrange local review or verification.
• Your project needs grades, coatings, cladding or accessories outside the options listed above.
• You need documented certifications, prices or delivery times. None are provided in the current product material, so request them directly and don't assume them.

Information to prepare for an enquiry

To get a meaningful proposal for a steel structure building construction project, send the building use, dimensions, project location, applicable local code, environmental exposure, preferred cladding, door and window requirements, and any required documents or inspections. Beijing Sinoworld Steel Material Co., Ltd. can then confirm the specification against your requirements.