Project Source 16 in x 26 in Rectangle Surface Recessed Mirrored Medicine Cabinet Siding Vents The panels are ¼” thick The panels are ¼” thick & can be finished with caulking & paint if a tub or shower base width is smaller than 36 in Quick lock sink mount for easy installation and replacement for virtually any disposer with instructions for both choices included Choice of left or right hand opening door Minimum rough wall opening for recess mount: 13 Frameless medicine cabinet features 2 adjustable shelves and a mirrored door with beveled edges Rustproof heavy duty plastic body is sturdy and durable Made for your choice of surface or recess mount installation