How do I secure a dishwasher under a granite counter?
You have two good options with a stone counter top if there isn't a mounting strip already under the countertop.


Option 1: Install a mounting strip under the counter, going all the way to the side cabinets and securing with some adhesive to the underside of the countertop (I've heard silicon suggested, but I'd prefer something stronger). I'd also use a couple L brackets to secure the mounting strip to the side cabinets. Then use short screws to attach the dishwasher so you don't go through the mounting strip and into the countertop. This doesn't work if you're already tight for space between the dishwasher and countertop.
Option 2: Get a side mounting kit to attach the dishwasher to the cabinets on each side. It may be a separate purchase from the manufacturer.