Separate rows preserve different depths and shapes, preventing one overall average from hiding important differences.
Whole-property planning tool
Multi-Area Topsoil Calculator
Add several lawns, borders, beds or circular areas with different depths and combine them into one transparent topsoil order.
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Combine multiple project areas
Keep each section separate until its own volume is calculated.
Estimated result
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Enter the project details and calculate.
Area-by-area method
Different depths should remain separate until the final sum
A front lawn, border and raised section may all need soil, but treating them as one flat area can conceal major depth differences.
Name each section
Clear labels make the result usable as an ordering worksheet and help you identify where measurement errors occurred.
Choose the correct shape
Use rectangles for regular beds, circles for round features and known area when a plan or mapping tool has already supplied the surface area.
Set depth per row
Each section receives its own depth before the volumes are added. The allowance is then applied to the combined base requirement.
Transparent breakdown
The combined result keeps every section visible
A single total is useful for ordering, while the row breakdown reveals which part of the property drives the quantity.
Intervention point
If the total is too expensive, inspect the largest sections first. Reducing an unnecessary depth in one large zone has more leverage than trimming small beds.
Σ (section area × section depth) × allowanceSite planning
Use the sections as a delivery and movement plan
A combined order still has to be moved to different locations. The section volumes help estimate wheelbarrow routes, staging and labour.
Mark access restrictions and avoid dumping the full load where it blocks vehicles, drains or pedestrian routes.
Frequently asked questions
Multi-area topsoil calculator questions
Yes. Each row is converted into volume using its own shape before all sections are added.
Use known area when a survey, plan, mapping tool or earlier calculation has already supplied surface area.
The calculator first sums all base section volumes and then applies the selected allowance to the combined requirement.