For countertops made of granite, marble, or other materials that could be damaged by drilling, secure the dishwasher to the cabinets. If you have framed cabinets, use screws that are long enough to secure the dishwasher to the cabinets or attach wood spacers (not included) to the cabinets on either side of the dishwasher. See Securing Dishwasher in Cabinet Opening for more details.