Shaft width up to 5,00m. Horizontal truss, metal profiles CW. Side edge connections with UW profiles, upper and lower edge connection with CW profiles. Ball throw safety on request. Insulating layer optional. Horizontal planking (solid panels in the 1st layer horizontally and in the 2nd layer vertically). Wall height up to: 7.00 m. Noise reduction up to: 42 dB.