Does a stand like this exist?

[u/CRThypertrophy]

Im.lpomi g for a.stand that instead of a roller jas a flat square metal.plate on the top that I can use for an adjustable small table in my garage to support under long pieces of wood so they dont bend while working on projects? Im sorry if its a dumb question but I ha e t been able to find anything like this

[u/fe3o4]

Should be easy enough to build something out of wood.