A threaded steel rod used in combination with turnbuckles to secure containers and deck cargo against movement at sea.
In practice
The chief mate ensures that the correct lashing rod inventory is embarked before departure and that stevedores deploy rods at the required positions as containers are loaded. Lashing rod arrangements are particularly critical for high stacks of containers on deck, where dynamic forces in heavy weather can produce large accelerations. Rods must be checked for corrosion, thread damage, and deformation; worn equipment must be removed from service. After departure, the OOW should monitor deck lashings during the first heavy weather to ensure rods have not loosened, retightening as necessary with turnbuckles. Container losses overboard are among the most visible and damaging cargo casualties in the industry.
Regulatory detail & full definition
A lashing rod is a galvanised or high-tensile steel threaded bar used in container securing systems to restrain upper-tier containers against rolling, pitching, and longitudinal forces at sea. One end typically terminates in a hook or ring fitting that engages the container's corner casting, while the other end connects to a turnbuckle or tensioning device that allows the rod to be tightened to the correct pre-tension. The CSS Code and each vessel's Cargo Securing Manual specify the maximum securing load (MSL) of each rod type and the arrangement—number, angle, and position—required for each tier height and stack configuration.
The chief mate ensures that the correct lashing rod inventory is embarked before departure and that stevedores deploy rods at the required positions as containers are loaded. Lashing rod arrangements are particularly critical for high stacks of containers on deck, where dynamic forces in heavy weather can produce large accelerations. Rods must be checked for corrosion, thread damage, and deformation; worn equipment must be removed from service. After departure, the OOW should monitor deck lashings during the first heavy weather to ensure rods have not loosened, retightening as necessary with turnbuckles. Container losses overboard are among the most visible and damaging cargo casualties in the industry.