STC RATING AND NOISE REDUCTION Skyfold has an excellent acoustic STC rating of 51. A standard Skyfold partition is 260 mm thick with two independent planes of steel panels separated by an 146 mm air space that creates an anechoic chamber. It is typically superior than other conventional operable wall systems of equivalent STC ratings. Weight of a 60' x 20' Skyfold wall as compared to a conventional operable wall of similar size and STC rating offers superior sound separation capabilities with an STC rating of other conventional operable wall systems of equivalent STC ratings. |stc rating|operable partitions|folding walls|noise reduction|