The scripts were written by Ronald Wolfe and Ronald Chesney, who later wrote Wild, Wild Women, which was a period variation of ''The Rag Trade'.
The actions centred around a small clothing workshop (hence the title, which associates with the textile industry), Fenner Fashions in London. Although ostensibly run by Harold Fenner (Peter Jones) and Reg the foreman (Reg Varney), the female workers are really led by militant shop steward Paddy (Miriam Karlin), ever ready to call a strike, with the catchphrase "Everybody out!"
Other major cast members in the series included Sheila Hancock (as Carole), Esma Reese Cannon (as Brother Lil), Wanda Ventham (as Shirley) and Barbara Windsor (as Judy).
The Rag Trade was later revived by ITV company LWT in 1977, with Jones and Karlin reprising their original roles. The 1977 version ran for two series and also featured Anna Karen reprising her role as Olive from On The Buses (a rare example of a sitcom crossover), and future EastEnders star Gillian Taylforth as two of the factory workers. The theme tune for the 1977 series was written and performed by Lynsey De Paul.
Note that on original transmission many of the early episodes were not given titles so some of these have been 'retro-fitted' from original production notes and repeat screenings.
The 8 surviving episodes (of 10), in the original Season 1, are available on DVD (released by DD Home Entertainment on 20/3/2006).
The 11 surviving episodes (of 13), in the original Season 2, are available on DVD (released by DD Home Entertainment on 23/10/2006). Note that 2 of these surviving episodes are not considered 'broadcast standard' and are included as 'Extras' due to the low quality of the print.
All 15 episodes, including the Christmas special, in Season 1 of the 1970s revival series by LWT, are available on DVD (released by Network DVD on 18/2/2008).