# Extrude

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The Extrude tool lets you turn a surface or closed boundary into a 3D solid.&#x20;

1. Under the *Create* icon, click *Extrude* or use the <kbd>E</kbd> shortcut
2. Click the [face or boundary](https://help.qonic.com/documentation/qonic-application/basics/navigation-and-selection/selection-modes#deep-select) you want to Extrude. The manipulator is dropped onto the selected face/boundary
3. (optional) click additional faces or boundaries to be extruded
4. Click and drag the arrowhead to start Extruding
5. (optional) Enter a precise distance value for the Extrude operation in the input field, or [snap](https://help.qonic.com/documentation/qonic-application/modeling/snapping) to existing geometry
6. Press Enter or left-click anywhere on the screen to accept.