Abstract: A partially prefabricated sound attenuating partition construction, for the construction of partitions in buildings, and other sound attenuating structures. The partition has two panel assemblies of vertical members defining opposite sides thereof, with a hollow interior. The panels are received in upper and lower generally L-shaped receivers mounted to receive the panel assemblies. A sound attenuating curtain of flexible material is supported from one of the panel assemblies. The sound attenuating curtain is spaced from the second of the panel assemblies by a predetermined air space. A sound attenuation acoustical batting insulation mounted on the other panel assembly within the hollow interior, and, a predetermined airspace between the acoustical batting insulation and the sound attenuating curtain.