Adona racks can be had with threaded inserts suitable for heavy duty casters, the likes of which are available from McMaster Carr and other similar places.
Any racks that use coasters/ wheels ?
I know salamander does racks with coasters but are there any others?
Never understood why people don't like coasters for the racks. It's impossible to move a rack after being populated with components without major effort. Not sure the isolation value is all that meaningful, ie. Not using coasters. Unless you got a turntable