PURPOSE: To prevent any noise and vibration from being transmitted to a living area by allowing a concave suspention part on the upper part of the living area to engage with a reverse T-shaped suspention part of a living area upper deck via vibration-proof rubber and thereby suspending and supporting the living area.

CONSTITUTION: In order to support a vessel living area while suspending it from a upper deck 3, a concave suspending part 14 provided on the upper wall 16 of the vessel living area is engaged with a reverse T-shaped suspension member 13 provided on the upper deck 3 via vibration-proof rubber 17. With this situation, it is possible to effectively prevent noise and vibration from being transferred to the living area.