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Bolsters

  1. Bolsters shall be placed on twist-locks on vessel's decks unless otherwise instructed. If vessel's deck does not have twist lock holes; chain lashing should be used.
  2. If the nature of the cargo is such that bolsters cannot fit on twist-locks, it is permissible to place bolsters on. suitable anti-skid material rubber mats provided for that purpose.
  3. Bolsters resting on at least two twist-locks do not require extra lashings unless otherwise instructed.
  4. All bolsters placed on anti-skid material or wood rubber mats shall be lashed as advised by Vessel Master / OPERATORS representative.
  5. Chain hooks shall be affixed to bolster's corner castings whenever possible.
  6. The angle of chains shall be such that the bolster is well secured in all directions.
  7. Unless one of the unit's rests on twist locks securing bolster to bolster should be avoided when stowed next to each other on the same level.
  8. Bolsters stacked two high or more require extra attention when securing. Due consideration should be paid to the weight, height of cargo, etc.
  9. If stevedore or lashing foreman is in doubt as to the lashing requirements, Vessel's Master or OPERATORS representative should be consulted.