Roots usually only increase 12 to 18-inches below the floor, the Washington State University Spokane County Extension notes. They area as they’re looking for moisture and oxygen, or due to soil erosion. Because root reduction leaves a tree unstable and vulnerable to illness and and perhaps dying you need to never remove tree roots. Still, in the event that you need to remove the farther away in the trunk, area tree roots you reduce, the better.
Measure the circumference of the tree-trunk 4 1/2 feet above the floor. Divide the measurement by 3.14 to decide the diameter. Leave at least 1 1/2 feet of every inch of diameter for area for trees that are more to root disturbance, such as pin oak and white oak, black trees. Leave 1 foot of area for each inch of diameter for trees that are tolerant, including Washington hawthorn, maple or oak trees.
Lay down rope, twine or a hose to create a circle round the tree in the the length established in Step Two. Cut roots on the exterior of the circle.
Use a clear, sharp root and dig a trench around and beneath to be eliminated observed to cut down through the root to take it off.