Wood vs plastic leveling blocks....
Both have pros and cons.
Wood is cheaper. But heavier, holds moisture and will eventually rot. If dealing with dirt/mud, then it becomes an issue when storing.
Plastic is a little more expensive and could break. But does not hold moisture, easy to rinse off and much lighter. Also easy to stack without having to do any extra work.
We've done it both ways and much prefer the plastic blocks....like i mentioned earlier. Have had 3 sets of lynx levelers and haven't had one break yet.