---
title: "Set the floor grid"
canonical: "https://help.vicon.com/space/Evoke18/397969072/Set%20the%20floor%20grid"
format: markdown
---
To more accurately visualize the dimensions of your volume in Evoke, you can change the size and shape of the floor grid.

To change the volume dimensions:

1. In the **Camera Calibration** panel, to the right of **Volume Setup**, ensure Advanced Parameters > Macro (inline-media-image)

 is selected.
2. Expand the **Set Floor Grid **section and change the values (in mm) to produce the required result.
3. Click **Set Floor Grid**.