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Bathrooms 101
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Lesson #1 - Cabinet Difference Prev Next
Standard vanity cabinets are built exactly the same as sink base kitchen cabinets, with the only major difference between the height and depth. Kitchen cabinets are 34 1/2 inches high and 24 inches deep, whereas, vanity cabinets range from 29 to 32 inches high and come 18 or 21 inches deep. These are standard sizes, you can always put a sink base cabinet into a bathroom (as long as it will fit). In general, I recommend for master bathrooms or bathrooms that will only be used by adults that you go with the kitchen cabinet height vanities so you do not have to bend down as much when you use the sink. For depth, I would always go with the deepest that will fit comfortably in your bathroom.

The other difference is that sink base cabinets generally only come with one or two doors and drawer faces designed for a single sink, whereas vanities come in many different layouts that differ in how many doors and drawers there are and whether there will be one or two sinks. Sink base cabinets tend to sell for 10 - 20% less than equivalent vanity cabinets, despite the fact that vanity cabinets use less wood. Some standard layouts are shown below (only the first two are available as a kitchen sink base):

One sink, single door One sink, two doors One sink, four doors, two drawers
One sink, single door, two drawers One sink, two doors, two drawers One sink, two doors, four drawers
Two sinks, three doors, one drawer Two sinks, four doors, one drawer Two sinks, two doors, three drawers