I wished to extrude edges of a plane to create opened box. I have created a plane, switched to edit mode, switched to edge select, then started shift selecting edges. I can select 1, 2 or 3 edges normally, but once I select 4th edge, entire face is selected automatically.

enter image description here

Consequently, I can't exctrude edges, entire face is extruded.

Why and how to overcome?


  • 2
    $\begingroup$ That's the way it works, it will select the face, so maybe extrude and delete the face afterwards? $\endgroup$
    – moonboots
    Jan 3, 2021 at 12:19
  • 3
    $\begingroup$ Generally if you select all the geometry which holds a face, that face also gets selected. If you want to extrude only edges, try to use Extrude edges command (Alt+E) instead $\endgroup$
    – Mr Zak
    Jan 3, 2021 at 12:33

2 Answers 2


(I wish users were a bit more curious and explored the menus...)

The Extrude function will extrude a face.

If you olny want to extrude the edges, select the face, then use Edge> Extrude Edges.

enter image description here

Likewise, if you want to extrude only vertices, then use Vertex > Extrude Vertices

enter image description here

  • $\begingroup$ Cool :). To be honest I totally missed this function when trying to answer this... $\endgroup$ Jan 3, 2021 at 19:24

Add a cube, go to Edit Mode and in Face Selection Mode (press 3), then delete the upper face.


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