# Extrude Surface ##

Extrude Surface The ExtrudeSrf command creates a solid by tracing the path of the surface edges in a straight line. **Steps** 1. Select a surface. 2. Specify a[ ](https://docs.mcneel.com/rhino/8/help/en-us/popup_actions/distance_pick_2pts.htm)distance. #### Command-line options SetBasePoint: Specify a location that serves as the first point when picking two points that set the extrusion distance. Direction: Two points establish the direction angle * Direction steps 1.Pick a base point. 2.Pick a second point that establishes the direction angle. BothSides: Draws the object on both sides of the start point, creating the object twice as long as you indicate.

Solid: If the profile curve is closed and planar, both ends of the extruded object are filled with planar surfaces and joined to make a closed polysurface. DeleteInput * Yes: Deletes the original geometry. * No: Retains the original geometry. ToBoundary: Extrudes the object to a boundary surface. For more information, please refer to the [Rhino documentation](https://docs.mcneel.com/rhino/8/help/en-us/commands/extrudesrf.htm).