Woven in England, wool baize fabrics are heavily finished thick wool cloths traditionally used for insulating and sound proofing. Doors were often covered with baize to keep out the chill, or to stop sound from servants’ quarters carrying above stairs, and the backstage ‘green room’ was so called for the green baize fabric tacked to the walls to stop sound from being heard front of house. More commonly today, baize is widely used to cover card-playing and snooker tables, for its densely woven and very flat surface.