Boss BoxFit in Darnall | Facilities, hours & reviews Boss BoxFit is a gym in Darnall, offering gym and fitness facilities, strength and cardio training, membership enquiries. Address: 329b Coleford Rd, Darnall, Sheffield S9 5NFOfficial website Things to do today Things to do tomorrow This weekend Free events Family events Kids activities in Sheffield Live music in Sheffield Live sports in Sheffield Cinemas in Sheffield Gyms in Sheffield All Sheffield events