This IMO is an interesting thread because far too many folks are hurt badly or worse when working around and under gals on jacks stands; they are not all created equal and the solicited rating often is worth less than the ink used to solicit it; in fact many are little more than fancy packaged junk.
I have several styles of jack stands as well as lifts with rolling jacks within my facility however with this having been shared I do a great amount of work on the gals with them in stand stands aka fixtures with there being times that the gals rest on them for many weeks as such I want an extremely stable and safe environment.
These 22 ton square shank units with the large square base are my favorite. They are rock solid as such my confidence level when working under the gals is without question.
Takes care
Shadowman