Root Zone Protection Calculator

Calculate the critical root zone and minimum protection radius for trees near construction.

Trunk Diameter (DBH)

Estimated Tree Age

years

Soil Type

Construction Type

Tab to move between fields

CRZ Radius

25.2 ft

CRZ Area1,995 sq ft

Min Protection Radius25.2 ft

Protection Fence Length158 ft

Penalty Zone Depth0 ft

How to Use This Calculator

Enter Trunk Diameter (DBH), Estimated Tree Age, and Soil Type.
Set Construction Type.
Review the CRZ Radius (ft) result.
Use CRZ Area (sq ft) and Min Protection Radius (ft) to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

Ad Placeholder

Related Calculators

Evaluate tree failure risk using ISA-style assessment with failure likelihood, target value, and impact severity.

Appraise the landscape value of a tree using the trunk formula method with species, condition, and location factors.

Calculate weekly watering requirements for trees based on size, age, weather, and soil conditions.

Ad Placeholder