I use wood under the stabilizers even on concrete. Avoids the possibility of a rust stain when I leave. Want to leave the site as nice as when I got there.
rsl is right - you need to put wood or plastic (preferably wood) under your tires, to prevent degradation of the tires. Concrete isn't as bad as asphalt in this respect, but the tires will degrade faster if you don't get them off the concrete.
|