# CENTEREXE System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [C](Help%20System/GSTARCAD/2026/System%20Variables/C/(C).md) ## Function Description: The CENTEREXE system variable is used to control the length of the centerline extensions. | | | | --- | --- | | Type | Real | | Saved in | Drawing | | Initial value | 0.1200 (imperial) or 3.5000 (metric) | NOTE: The CENTEREXE system variable applies only to the length of centerline extensions created with the CENTERMARK and CENTERLINE commands. This system variable only accepts positive real numbers. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Cgsv/CENTEREXE.html) · © Gstarsoft Co., Ltd.