Understanding lashing in cargo transport
Lashing is a critical safety procedure in logistics that ensures cargo remains stable and secure throughout the transportation process. Regardless of the transport mode—whether road, maritime, river, or air transport—proper lashing techniques protect both the cargo and those handling it. Each transport mode follows specific regulations, with particularly stringent requirements for dangerous goods due to the heightened risks involved.
Lashing methods and techniques
Several accepted methods exist for securing goods and containers effectively:
- Interlocking: Arranging cargo pieces to fit together naturally
- Blocking: Using filling materials, bars, or panels to prevent movement
- Direct lashing: Securing cargo directly to anchor points
- Top-over lashing: Applying straps over the top of cargo
- Loop lashing: Creating loops around cargo
- Tie-down or strapping: Applying downward pressure to secure loads
These methods can be combined to prevent sliding, especially when friction between lashing systems and cargo surfaces is a concern.
Types of lashing equipment
The choice of lashing equipment depends on the load’s type, weight, and composition:
Synthetic Fibre Straps (typically polyester, per standard EN 12 195, Section 2): Commonly used for top-over lashing through friction and direct lashing applications, particularly when wider strapping is required.
Lashing Chains (standard EN 12195-3): Essential for goods with sharp or cutting edges and heavy loads such as machinery, steel, concrete, and military equipment. Chains are exclusively used for direct lashing.
Steel Lashing Cables (standard EN 12195-4): Recommended for specialized loads including wire mesh for reinforced concrete and timber products like round logs stacked lengthways.
Equipment specifications and safety
All lashing equipment must display identification plates or labels indicating:
- Lashing Capacity (LC): Measured in decanewtons (daN), the official force unit
- Pre-tensioning Force: The tension achieved when 50 daN of manual force is applied
These specifications help logistics professionals select appropriate equipment for each load. Regular inspection of lashing equipment is mandatory to ensure continued strength and reliability, maintaining safety standards throughout the supply chain.
