> I just called and got a cost on a "steel 2x4", 18' long, 25
> guage steel. The cost was less than $4.00 and the guy said they had over
> 400 in stock.

> They are the same size as your standard pine 2x4 but made of galvanized
> steel. They are easily cut with tin snips - to fit end forms on. Drywall
> screws bite into them like a wild dog.

> They WILL NOT WARP - unless you sat on them, in which case you deserve
> what you get.

> Can anyone think of a good reason why these would not work?

> Also, how about homosote for forms material? It is "particle
> board" that is made of recycled newspaper. The paper is soaked until
> it is mush then heat and pressure is appled. It is sold in 4x8 sheets
> 1" thick and can be easily cut with a saber saw It is heavy, dense
> and should hold a staple well. It too would be very dimensionally stable.
> It's sold locally at Home Depot.

> Thanks, Carl

Carl, I wouldn't recommend using 25 Ga. studs for your strong back. They are just too flimsey. If your set on steel you might consider using drywall track nested together to form a tube. This is the material you set the steel studs in at the floor and ceiling when framing. Its 1 1/4" x 3 5/8", straight leged U channel and you should be able to get in something heaver than 25 Ga. As for Homosote, I'd wouldn't use it. First, 1" is too thick for form material unless you intend to bevel each one (more work). This material is uaually used as insulation behind siding or carpet underlayment. It is very fiberous and very low in strength. You,d be lucky to cut within a 1/8" of any line you drew on it. I've had great luck with MDF. Its stable, cheap, easy to cut and holds staples just fine. If you can't find MDF my next choice would be partical board. Hope this helps, Rich Ross