"Hello, I have a problem, I'm looking for something to wedge my washing machine.
Wedge your washing machine?
Yes, the ground at home is not very level, it's an old building and when I start a program, it vibrates throughout the building, my neighbours complain about the noise. Are there any hard plastic blocks that I can use? I tried it with cardboard, but it eventually crashed. I have pieces of wood, but it is difficult to cut them lengthwise to reach exactly the right height.
Have you tried adjusting the legs?