operable partitions gym dividers acoustical rating operable partitions Skyfold is a custom manufacturer of completely automatic, rigid, flat, retractable, operable partitions. A simple turn-of-a-key switch and Skyfold retracts quietly and effortlessly into the ceiling. with a travel time of 5' to 10' per minute. Skyfold acoustic has eliminated the need for manual labor to assemble and disassemble walls. Skyfold operable partitions represents the latest development in operable walls. The operable partitions store safely in the ceiling when not in use and fold down to form a hard, rigid and flat wall in its down position. The Skyfold modular system consists of a grid of rectangular panels for varying wall sizes.