# RIBBONDOCKEDHEIGHT System Variable [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [System Variables](Help%20System/GSTARCAD/2026/System%20Variables/(System%20Variables).md) → [R](Help%20System/GSTARCAD/2026/System%20Variables/R/(R).md) ## Function Description: The RIBBONDOCKEDHEIGHT system variable is used to determine whether set the horizontal docked ribbon to be current tab height or predefined height. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 100 | | Range | 0 ~ 500 | If specified to be 0, ribbon will adjust and fit selected tab height. Set a value between 1 and 500, ribbon height will be the number of this value in pixels. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/systemVariables_Rgsv/RIBBONDOCKEDHEIGHT.html) · © Gstarsoft Co., Ltd.