Real easy mate. I created a vertex & extruded that in a zig zag manner along the Y axis, to create the folds.w i l l wrote:How did you model those curtains?
Then I extrude this whole line of new verts along the x axis, to give a thickness to them, then extrude this along the z axis & scale out at the same time.
Update:
Second chair modeled.


Tim.