How do I make a plane have thickness?

Question

So I made this structure by subdividing a plane and elevating parts to make hallways:

enter image description here

Then I realized that I wanted to make the walls have a certain thickness. Is there a way to do this? Extruding didn't really work for me.

score 22 · Accepted Answer · answered May 06 '14 at 01:23

22

Solidify Modifier

You can do this by adding a Solidify modifier to your planes:

enter image description here

answered May 06 '14 at 01:23

Thom Blair III