How do I fill in two lines that I have drawn?

Hi. Brand new to rhino, and I need some help. I am trying to make a chair. I drew the profile of the legs and am trying to fill them in. I would then extrude to give it depth and then copy to the other side. Can anyone help me?

Hello - from the Solid menu, use Extrude planar curve > Straight. Select both curves together. Does that do what you need?