# Offset Design
 Select the '**Offset**' button to raise or lower the surface height of a field or region. This can help with:
- Importing and exporting dirt
- Addition or removal of topsoil
- Raising pads
You can either:
- Manually enter the desired offset amount (This can also be adjusted in set increments using the arrow buttons).
- Use the calculator to adjust the offset amount. The calculator is useful if you want to offset the surface by a certain volume of imported or exported dirt.
- Formular (Click '?' button to see)
Left over volume = (Cut/Fill ratio \* Volumn of cut) + Volume of fill.
Result = (Import + Left over volume) / Selected area
Negative import values are considered exports.Press '**Apply**' (shown as the offset design icon) after parameters are entered.Once you are happy with the design follow the steps in the '[completing your design](https://t3rra-help.freshdesk.com/en/support/solutions/articles/51000330106-completing-your-design)' section.