Dukinfield built two 5 car matchboard suburban set in 1911. These were arranged as brake third, composite, first, third, brake third, (3A7, 3L4, 3Q2, 3B5, 3A7). The brakes had six compartments. A year later six more sets were built arranged brake third, composite, third, third, brake third, (3A9, 3L5, 3B5, 3B5, 3A9). These brakes had seven compartments and the composites 4 first and 5 thirds. Altogether 31 D.3B5 thirds were built so it is likely that the sets were made up to six or seven cars with extra thirds.