A side-by-side reducer (SSR) conveyor has one lateral side of driven rollers operating at a different longitudinal running speed than another lateral side of driven rollers. The one lateral has an input section of driven rollers skewed away from the other lateral side followed by a converging zone of driven rollers skewed toward the other lateral side. The separation prevents frictional contact between side-by-side cartons so that one can be longitudinally moved a different velocity than the other to converge in a tandem arrangement.