In this paper, floor impact noise reduction by using floating floor in cruise ship cabin is studied. A mock-up is built by using 6 mm steel plate, and two identical cabins are made where 25 mm sandwich panel is used to construct wall and ceiling inside the steel structure. Various floating floor systems are tested by employing the mock-up. It is found that the effect of VL is negligible when it is used between steel deck and mineral wool, since most vibration absorption occurs in the mineral wool. The direction of the mineral wool fiber affects floor impact noise significantly, in which horizontal direction is quieter than vertical direction by 5 - 7 dB.
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