tank stand question

[Abbyreefer]

Just curious if anyone puts anything under their tank stands like a large rubber matt or underlay for those who have their tank stand on hardwood/laminant flooring. Before I go ahead and set up the tank and stand I though maybe I shoudl ask because I've always had my tanks in the past on carpet and then though maybe I would get vibrations through the floor if I put the tank and stand right on top of the laminant flooring. Any input or suggestions would be greatly appreciated.

cheers,
Matt.