Difference between gross tonnage and net tonnage?

(GT)

This is a common measurement of the total internal volume of a ship (holds, tanks, stores, E/R, bridge & accommodation & any close areas).

(NT)

NT = GT – deductions for space occupied by crew accommodation, E/R, BRIDGE & TANKS. It represents space available for cargo & passengers.

Gross tonnage:

The volume of all enclosed spaces of the ship.

Net tonnage:

The volume of all cargo-carrying space of the ship.

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