I have a plane, as you can see below, that I would like to be the floor of a building.

How would I quickly create walls from all of the edges?

My plane


1 Answer 1


In edge select mode (CtrlTab>Edge), select all the outer edges and press EZ to extrude along the Z axis:

enter image description here

In the above gif I used the new boundary edge selection tool, which is currently only available in the latest development builds (it will be in 2.71).

If you are using an older version, you can select the boundary edges like so:

  1. Enter edit mode (Tab)

  2. Select all (A)

  3. Press 3D view > Header > Select > Select Boundary Loop:

    enter image description here

  • 1
    $\begingroup$ How'd you do the boundary loop selection for new builds. I can't tell what you did from the screencast $\endgroup$ May 31, 2014 at 8:06
  • 1
    $\begingroup$ Just press Alt+RMB on the edge twice (see this post) The old method works fine on new builds too. $\endgroup$
    – gandalf3
    May 31, 2014 at 9:34
  • 1
    $\begingroup$ That works, thanks. It's nice to see it there now. It's a very appreciated addition to the selection tool. $\endgroup$ Jun 1, 2014 at 6:45
  • $\begingroup$ Great approach and very helpful for newbies. $\endgroup$ Nov 7, 2017 at 19:47

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.