In this paper, we constructed the storage furniture with tatami with an area of about 7.2m2 for the reinforced concrete building and examined floor impact sound insulation performance. As a result, when the storage furniture with tatami was installed, the sound reduction was achieved from Lr-60 to Lr-50 when the car-tire was vibrated and from Lr-55 to Lr-45 when the rubber ball was vibrated, respectively. As described above, this report clarified the feasibility of installing storage furniture with tatami in a real building to prevent heavy-weight floor impact sound.
