Washing machine vibrations during the spin cycle can shake the whole house, but you can get them under control with vibration isolation/dampening pads.
Clean the floor under the pads. Then stick the adhesive discs to the floor. Apply the primer to the pads and press them onto the discs. Lift the washer back into place, locating the feet in the pad recesses.
It seems counterintuitive, but if your washer still vibrates even after being leveled, the solution is not to bolt it to the floor. That'll just make more noise. Instead of connecting the washer to the floor, you want to isolate it from the floor. The washer's rubber feet are supposed to do that. Unfortunately, at high spin speeds, they don't do a very good job.
That's where vibration isolation/dampening pads come in. Installers use these heavy-duty rubber pads under furnaces and blowers. One company makes a pad specifically for front-loading washing machines. The puck-shaped pads made by Good Vibrations Inc. get good reviews. You can buy a set of four from gviinc.net.
Installing the pads is a three-step process, and you'll need a helper for lifting the machine. Start by lifting each corner of the machine and slipping a pad under each foot. Mark each pad location on the floor. Then lift the washer out of the way so you can apply the adhesive discs and mount the pads to the floor as shown.
Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.
Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.