Reply by BentheViking

This floor needs to be glued down. Bamboo is the solid product that we sell that can be glued down without any issue. Despite what Charlie’s experience was, stranded bamboo is actually a very stable product. Typically we’d recommend using a moisture barrier and glue all in one, such as the Eco 995. If your flooring is cold, then you could use either the Bellawood or Eco Silent Sound HD products that I linked before by glueing them down and then gluing your floor to the pad, but again your hitting your issue of too much cushion.

Also the correct janka ratings on stranded natural bamboo is 3000 or almost 2800 on stranded carbonized (spice, carmelized, etc.). It certainly is a great choice for a better than concrete shop floor, it just has to be the proper installation or your throwing your money away.
PS. by looking at my links you can guess where I work and know that what I’m saying actually is correct. Good luck

-- It's made of wood. Real sturdy.--Chubbs Peterson