How would a warship have been subdivided?

How much more subdivision would a naval ship of Titanic's length have had?

Roughly one-third to one-half more, reflecting a warship's greater emphasis on surviving damage.

A naval vessel of Titanic's length is estimated to have had at least one-third more subdivision and perhaps as much as fifty percent more. Warships accepted that complexity because damage resistance was central to their purpose. Passenger liners valued large accessible spaces for cargo and accommodation, making the same arrangement commercially costly. Safer compartmentation was within the reach of 1912 engineering, but it followed a different set of design priorities.