Oh - one more thing...
I'm assuming this is a BRICK warehouse...? If so - you should also bolt the framing into the brick. Use a hilti masonry bit to drill holes for 3/8" Hilti HIT anchors (expensive) or else use red-heads (much cheaper but crappier) to fasten framing directly or else use a heavy gauge steel angle.

A nice touch is to add some R-13 between the studs too. It works wonders for the acoustics of the space as illogical as it might seem to you. Feel free to ask if you have other questions.