THREE STEPS TO SELECTING THE RIGHT MEDICINE CABINET STEP 1 Confirm size and clearance Whether surface-mounted or recessed, your KOHLER® medicine cabinet must clear the lowest point of the lights and the highest point of the faucet by a minimum respectively. STEP 2 Select the right installation type for your space Most KOHL ER medicine cabinets can be either recessed or surface-mounted. Check your cabinet’'s installation instructions for complete details.