Publish Time: 2026-03-20 Origin: Site
At EK Scaffolding, we specialize in providing high-performance steel props solutions tailored to various countries and standards, accompanied by compliant SGS test reports.
EK Scaffolding offers the commonly available Light Duty, Medium Duty, and Heavy Duty Steel Props. For specific details, please refer to the Steel Prop Key Parameters and Specifications Table.
Specifications | Light Duty Steel Props | Medium Duty Steel Props | Heavy Duty Steel Props |
Material | Q235 | Q345/Q355 | Q355 |
Dimensions | 1600-5000 | 1000-5000 | 2000-4000 |
Outer Tube | 48.3/56mm | 60.3mm | 76mm |
Inner Tube | 40/48.3mm | 48.3mm | 63.5mm |
Standard | EN1065 Class A BS 4074 SSFI | EN1065 Class A BS 4074 SSFI | EN1065 Class A BS 4074 SSFI |
Surface Finish | Hot-Dip Galvanized Pre Galvanized Electro galvanized Powder Coated | Hot-Dip Galvanized Pre Galvanized Electro galvanized Powder Coated | Hot-Dip Galvanized Pre Galvanized Electro galvanized Powder Coated |
Applications | Light Construction Interior Fit-outs | Medium-duty Slabs Residential Housing | Heavy duty Engineering Industrial Buildings Elevated Structures |
1. European Standards
European standards are categorized into five classes; regardless of the height to which a steel prop is adjusted, it must satisfy the corresponding load requirements specific to that class.
Class | Minimum Load Capacity (Extended State) | Characteristics and Applications |
Class A | 5.0 kN | Light-duty; suitable for interior renovation in standard residential buildings. |
Class B | 9.0 kN | Medium-light duty; the most common general-purpose model in the European market. |
Class C | 12.0 kN | Medium-duty; suitable for supporting standard floor slabs in structures with greater ceiling heights. |
Class D | 20.0 kN | Heavy-duty; typically requires larger inner and outer tube diameters (e.g., 60/76 mm). |
Class E | 30.0 kN | Extra-heavy-duty; primarily used for industrial-grade support applications, such as in bridges and tunnels. |
2. British Standards
In the UK, the load-bearing capacity of steel props must comply with EN standards; however, their dimensions are typically still classified in accordance with BS 4074.
Size | Closed Height | Extended Height | Weight |
Size0 | 1.04m | 1.83m | 13.5kg |
Size1 | 1.75m | 3.12m | 17.5kg |
Size2 | 1.98m | 3.35m | 19.0kg |
Size3 | 2.59m | 3.96m | 21.5kg |
Size4 | 3.2m | 4.88m | 25.5kg |
3. U.S. Standards
Material Standards: Compliant with ASTM A53 Grade B or ASTM A500 (High-Strength Structural Steel Tubing).
Safety Factor: U.S. standards typically require a safety factor of 2.5:1 or 3:1—meaning the actual ultimate load must be at least 2.5 times the rated load.
OSHA Compliance: Must comply with the U.S. Occupational Safety and Health Administration (OSHA) regulations regarding the stability of temporary supports.
Surface treatment processes for steel props primarily fall into the following categories: Hot Dip Galvanized, Pre-Galvanized, Electro-galvanized, and Powder Coated.
Hot Dip Galvanized | Pre Galvanized | Electro galvanize | Powder Coated | |
Target Markets | Europe, North America, Australia | Southeast Asia, Latin America | Middle East, South Asia | European, North American |
Features | The zinc coating thickness typically exceeds 65 μm. Through a high-temperature immersion process, the molten zinc undergoes a metallurgical reaction with the steel substrate, resulting in exceptionally strong adhesion. | Manufactured directly from galvanized steel strip, with the weld seams subsequently treated to replenish the zinc coating. | It features a bright silver appearance that is highly aesthetically pleasing, and offers moderate rust-preventive performance. | The coating is hard and durable, providing an excellent surface texture. |
Advantages | Possesses "self-healing" properties: even if the surface sustains minor scratches, the surrounding zinc layer utilizes electrochemical action to protect the underlying steel, ensuring robust rust resistance. | Offers an optimal balance of cost-effectiveness: while its cost is lower than that of hot-dip galvanizing, its rust-proofing performance far exceeds that of standard paint coatings, making it ideal for large-scale, high-turnover applications. | Features a smooth surface that resists cement adhesion; the adjustment nuts rotate with exceptional fluidity, facilitating precision-oriented operations. Although its long-term rust-proofing durability is not on par with hot-dip galvanizing, it remains fully adequate to cover the entire duration of construction projects in arid regions. | Represents the lowest-cost option while providing a thicker coating than standard paint; it offers strong impact resistance and a highly professional aesthetic that meets local visual standards for construction sites. |
Application Scenarios | High-standard infrastructure projects subway or large-scale bridge engineering | General civil construction market in Southeast Asia short-to-medium-term turnover projects | Interior decoration light construction | Branded Construction Sites Western Residential Markets |
Service Life | Over 10 years | 3–5 years | 2-3 years | 1-2 years |
In the construction industry, regardless of the specific project, the selection of scaffolding props systems is of paramount importance; choosing the appropriate steel props can significantly enhance both operational efficiency and safety. This guide has outlined the core specifications, regional standards, and surface treatment processes associated with adjustable steel props. Our aim is to assist engineers and procurement managers in making informed, data-driven decisions.
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