# DONUTID System Variable [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [System Variables](Help%20System/GSTARCAD/2027/System%20Variables/(System%20Variables).md) **Function Description:** The DONUTID system variable is used to set the default inside of diameter for donuts. | | | | --- | --- | | Type | Real | | Saved in | Not saved | | Initial value | 0.5000 | --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/systemVariables/DONUTID.html) · © Gstarsoft Co., Ltd.