My local home center sells 3 5/8" in 20 or 25 gauge, 2 1/2", and 1 5/8" in only 25 gauge.
I'm talking about saving inches in the room (which may not be worth it, I know) BUT is there a preferred width in the steel studs?
True a 2x4 is 3 1/2" wide, but if I can save space, why not?
Does the gauge matter for non-load bearing walls ?
I only have a choice between 20g and 25g in the 3 5/8" widths,
stuck with 25g in the smaller widths.
Is one easier to work with...cutting, screwing, etc.?
Also, I have heard only to use 5/8" drywall....will 1/2" work or be too flimsy?
Is there a preference if it is a perimeter wall (i.e. drywall on one side only)
A wrinkled tin stud is a flimsy wall, so you definitely need the 5/8" drywall to stiffen it a bit. Dry wall on one side is definitely not as good as two sides, since the studs can twist/distort without something on the other side for stability.
Make sure you have the proper wood or other backup/reinforcement around openings for trim and doorsand wherever you want to hang anything more than an 8x10 photo.