Although a trencher can be used to cut through roots, it was designed for creating trenches in soil and may not be able to handle large roots.

Can you trench through tree roots?

Pneumatic digging allows trenching through a tree's critical root zone without severing vital roots. ... If you must dig a deep trench near a tree, consider the option of boring under the roots. Larger utility lines of various types can often be placed at 6 feet deep in the soil by boring to avoid existing roots.

What is the best tool for cutting roots?

Tree Services experts say that gardening shears can work well. Alternatively, you might use a shovel or spade, branch cutters or loppers, a mattock or hoe to dig out the soil, and an axe or even a saw.