Moveable Partition Wall (Square Feet) - 013 is movable glass/sound proved wall top hung manually operated. Based on the requirement the panels shall be constructed of board separated by acoustic insulation of achieving the specified sound rating. Panel Faces are replaceable at the site. Soundproof walls are classified by an STC (Sound Transmission Class) rating for their effectiveness in reducing transmitted sound. Based on Acoustic Requirements the panels shall be of STC 45 or STC 52. STC 45 shall make the wall with loud speech barely audible on other side & STC 52 shall make the wall with shouting barely audible on another side.