Draft Survey

A draft survey is a means of determining the weight of cargo on board the vessel, where the displacement of the water before and after loading/discharge is measured, with the resulting difference representing the weight of the designated cargo.

A survey is performed by reading the vessel's draft markings at six standard points on the hull: forward, midship and towards both the port and starboard sides. Revisions for factors such as trim, water density and non-cargo weight (such as fuel oil and drinking water) are part of the calculation that we perform.