- Walk-Behind Trenchers: Small, pedestrian-operated machines for residential and light commercial trenching. Used for irrigation, electrical conduit, drainage and telecommunications. Popular brands include Ditch Witch, Vermeer and Barreto.
- Ride-On Chain Trenchers: Mid-size machines with a digging chain for trenching in soil, clay and soft rock. Used for water, gas and telecommunications pipeline installation.
- Large Track-Mounted Trenchers: Heavy-duty machines for deep trenching, pipeline corridors and large-scale utility installation. Common brands include Ditch Witch, Vermeer, Tesmec and Trencor.
- Rock Wheel Trenchers: Specialist machines fitted with a rock cutting wheel for trenching through hard rock, limestone, sandstone and coral. Common in Western Australia, Queensland and the Northern Territory.
- Micro Trenchers: Precision machines for shallow, narrow trenches used in fibre optic cable installation in urban areas with minimal surface disruption.