# SURFTAB1 System Variable [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [System Variables](Help%20System/GSTARCAD/2027/System%20Variables/(System%20Variables).md) **Function Description:** The SURFTAB1 system variable is used to set how many tables will be generated by RULESURF and TABSURF commands. | | | | --- | --- | | Type | Integer | | Saved in | Drawing | | Initial value | 6 | It also set the mesh density in M direction for REVSURF command. --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/systemVariables/SURFTAB1.html) · © Gstarsoft Co., Ltd.