Info from Wikipedia
Rafters was a nightclub located in St. James Buildings, Oxford Street, Manchester, England. Some well-known bands played concerts at Rafters in the 1970s and 1980s.
Rob Gretton, who went on to become the manager of Joy Division, worked at Rafters.
Rafters opened in Manchester in the 1970s in St James's Buildings in Oxford Street. The schedule generally remained the same: live gigs on Monday and Wednesday nights and a Folk night on Tuesday. By the mid-1970s the venue had become better known by the public and musicians, and leading musical bands began to play there. Following the rise of punk rock in 1976 and 1977, the venue became one of the main places in Manchester for live music. The club closed in 1983.