What size excavator is best for NBN cable trenching?

NBN cable trenching requires precise, narrow trenches — typically 200–300mm wide and 300–600mm deep. The 0.8T mini excavator with a 200mm narrow trenching bucket is the preferred choice for NBN cable work. It fits through residential gates (750mm wide), causes minimal surface disruption, and digs precise trenches. The 1T mini excavator (900mm wide) is an alternative for sites with slightly wider access. For large-scale NBN rollout projects requiring multiple machines, BuildHire can supply multiple 0.8T and 1T excavators. Our machines can be fitted with narrow trenching buckets (200–300mm) specifically for cable and conduit work. NBN cable trenching typically requires a permit from the relevant road authority for work in public roads or footpaths.