Kitchen Large Electric Appliances - Wheels on stackable washer/dryer

We are doing over our laundry room and have decided to go with a stackable washer and gas dryer. I would like to, either, attach wheels to this unit, or maybe put the unit on a small dolly with casters. It will fit pretty snugly against a wall and a counter top when complete.
Has anyone done this or does anyone see a problem? Vibration ? should I put some rubber type padding and maybe anchor to a wall somewhat?
Wheels sure would make any repairs, cleaning, etc. a lot easier
Any advice is welcome

yes you can do this (but i wouldnt!) but make sure to use a strong wheen NO PLASTIC use a hard rubber wheel with a metal base but make sure you attach this unit to a wall it could tip over.

Thanks. Upon reflection I think it would work best to just put those teflon furniture slides under the unit. Not as frictionless as wheels but a lot easier and is should slide without too much trouble.