Nautical charts and navigation instruments laid out for study

Key takeaways

  • Record the units and source of the stated factor.
  • A simple volume estimate is not a complete stowage plan.

Test the space requirement

ILLUSTRATIVE — invented teaching inputs. Assume cargo of 10,000 tonnes and a stowage factor of 1.4 cubic metres per tonne. Estimated space = 10,000 × 1.4 = 14,000 cubic metres, before practical allowances.

The example excludes practical stowage allowances and vessel-specific constraints. Obtain cargo information and the relevant usable hold capacity before treating a vessel as suitable.

  1. Confirm whether the supplied factor is in cubic metres per tonne or another unit.
  2. Apply the factor to the proposed quantity consistently.
  3. Refer the result and cargo characteristics for technical suitability review.

For a light bulk cargo, a vessel can encounter a volume limitation before reaching its weight allowance. That is why a cargo enquiry should carry more than a tonnage figure.

Common mistakes

Avoid using a generic cargo label as proof of an exact stowage factor. Do not mix cubic feet and cubic metres. Do not present a mathematical space estimate as confirmation that loading can proceed safely.

Where Zeaclub fits

Zeaclub supports agentic, AI-assisted operations with a human in control.

Zeaclub provides a multi-party shared workspace for owners, charterers, brokers and port agents.

Explore Zeaclub

Visit the Zeaclub website

Educational information only; not legal, financial or trading advice. Contract wording and applicable rules control. Verify current requirements and obtain qualified advice before acting.

Frequently asked questions

Does a higher factor mean more space per tonne?

Yes, when comparing factors expressed in the same units.

Is stowage factor identical for every parcel?

Do not assume so; request information for the actual cargo.

Does enough deadweight prove enough hold space?

No. Weight and volume are separate constraints.

What belongs beside a stowage-factor figure?

Its units, cargo description, source and any qualifications affecting its use.