Soundproof partitions wall When in use, sound proof partitions form a flat solid wall at the right place and fold into the stacking area when not in use. Sound proof room partitions are available in three basic system types 65, 85 and 100 soundproof wall divider. The sound proof partition material for the 3 types is similar and the main difference is thickness. The choice on the three will depend on the noise reduction requirements, the available structural support, the stacking layout and the need for access doors. The surface treatment can be plain color, wood grain, fabrics, polished wood veneer and wall papers. We also provide vision panels, glass and access doors.