Most old bed-frames are made from hot-rolled steel. The stuff is pretty hard, and likely to induce ricochets.
Just be aware of this if you go this route.
Does anyone sell USPSA or IDPA targets locally? I really don't want to pay shipping on a whole case when I just want a few. PSS stocks them but won't sell you any unless you buy their $50 steel stand.
Migs are cheap and not hard to use. I don't see a problem making your own. Even an inexperienced person can learn to weld good enough to mount some cardboard.
We offer some as well. These are 18" wide to accommodate cardboard/paper targets and also have a center slot for 2x4s to mount steel targets to as well. Also, brackets to mount targets to the top of the 2x4 are available separately.
These are $40 each (bracket - not shown, are $30) or (without 2x4 post for $35)
We also offer a set of swinger brackets that allow the end user to make a collabsible a-frame stand using their own round/rube material. Material should be 3/4" OD, but can be cut to any length desired to fit the targets being used.
These are $55 pair.
Other stand options are available on request, but the above mentioned are all stocked items.