How to Level an Appliance Correctly

Almost every major appliance includes adjustable feet specifically because level installation matters. Washers vibrate destructively on unlevel floors; refrigerators make ice chunks that jam the dispenser; dishwashers leak from the door; ranges cook unevenly. The five-minute leveling step at install time saves hours of subsequent service work.

Use a long torpedo level (24 inches or more) on the top of the appliance, not on the floor — floors lie. For washers and dryers, level both side-to-side and front-to-back. For refrigerators, the unit should tilt slightly back (about 1/4 bubble off level) so the doors swing closed under gravity. For dishwashers, level on the inside edge of the door frame after the unit is in its cabinet. For ranges, level on the cooktop with both feet adjusted.

Each foot is a threaded rod that screws in or out. Most also have a lock nut that you tighten up against the cabinet bottom once the foot is at the right height — this prevents the foot from backing out under vibration. Skipping the lock nut step is the single most common installation mistake; an unlocked foot will work itself out within months and the unit will start vibrating again.

If the floor itself is severely out of level (more than the foot adjustment can compensate for), shim under the cabinet base with rubber pads, hardwood shims, or a plywood platform. Avoid metal shims — they skid under vibration. Anti-vibration pads under each foot ($20-$40 for a set of four) are cheap insurance on wood subfloors and dramatically reduce noise transmitted to the rooms below.