I'm trying to frame in a new wall in my basement, but am having trouble with cold air returns. I have no way to stablize the walls at the top. Any ideas?

 

Is this wall interior or on the outside wall?

 

It's an outside wall, up against the concrete.

 

and the cold air is above for the whole length?

 

can you explain a little better please?

If the drywall is on a block wall why don't you use 1"x2" furring strips and screw the drywall the that?

Liquid nail's?
Need to have more info plz!

 

Yes this is on concrete block. I think I may have solved the problem, but now I'm curious. If I were to use furring strips... How would I attach them? Forgive me if my questions seem dumb, but I am doing this kind of project for the first time.

 

I almost forgot!! Does drywall HAVE to start and end on studs? Or can it end between them? Thanks in advance for any help!

 

Well to attach the furring strips you have 2 options

1:
you can screw them to the walls with Tapcon Screws. Must predrill with masonary Bit. when you buy the tapcons they give you a free bit.

2:

If you have an Air compressor, or maybe can borrow one from a friend you can rent a "T-Nailer" from home depot etc.. and shoot the furring strips to the wall.