# GRIDUNIT System Variable [GstarCAD 2018](Help%20System/GSTARCAD/2018/Index.md) → [System Variables](Help%20System/GSTARCAD/2018/System%20Variables/(System%20Variables).md) → [G](Help%20System/GSTARCAD/2018/System%20Variables/G/(G).md) ## Function Description: The GRIDUNIT system variable is used to specify the grid space(in X and Y directions) in current viewport. | | | | --- | --- | | Type | 2D point | | Saved in | Drawing | | Initial value | (0.5000,0.5000)(Imperial) or (10,10)(Metric) | To specify the default grid space to be snap space, please set the GRIDUNIT to be 0.0. All changes will display in grid after regenerating view. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/G/GRIDUNIT%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/G/GRIDUNIT%20System%20Variable.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/G/GRIDUNIT%20System%20Variable.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/System%20Variables/G/GRIDUNIT%20System%20Variable.md) · [GstarCAD 2021](Help%20System/GSTARCAD/2021/System%20Variables/G/GRIDUNIT%20System%20Variable.md) · [GstarCAD 2022](Help%20System/GSTARCAD/2022/System%20Variables/G/GRIDUNIT%20System%20Variable.md)