When Lendlease one of Britain’s biggest contractors needed high acoustic movable walls for a large government project they chose the Teachwall 100 system. The panels where designed to fit neatly into Architect designed alcoves. Another criteria was the rigidity of the movable walls of which was comfortably achieved through the high pressure mechanisms that this particular system offers as standard. 7no movable walls where installed ranging in acoustic performance from 50 decibels to 58 decibels. The higher acoustic rated walls where tested to achieve a sound resistance between rooms where highly confidential meetings and conversations take place.