Things to Consider when Choosing a Bathroom Vanity:

How much space do you have?

The first step is to measure your bathroom before choosing a vanity. Consider how much counter space and storage space you will need, and make sure to write the dimensions of the area where your bathroom vanity will be installed. The width and depth are usually fixed measurements due to the physical space in your bathroom where you are either replacing or adding new.
Overall Width: This is the side-to-side measurement of the vanity top.

Overall Height: Consider any mirror or medicine cabinet that may already be installed above the vanity, as well as your personal choice..

Overall Depth: For a narrower bathroom, vanities with a smaller depth are necessary. Make sure to consider any interference with the entryway, storage drawers, or shower doors.
How many sinks do you need?

If space is not a factor in choosing a vanity, make the decision based on the ideal number of sinks.

Single Vanities: For small spaces, vanities with one sink are the best option. Pedestal sinks take up the least amount of room in a tight space.

Double Vanities: This style is perfect for a shared or family bathroom. Two sinks are generally best accommodated by a width of at least 48" or more.

Which Vanity options are available? 
1. Free Standing: Also known as standard, this is the most common bathroom vanity. It resembles a chest  and is your best option for maximum storage space.

2. Wall-Mounted: Most wall-mounted vanities hang, or float, on the wall without legs touching the ground. This modern style opens up floor space in a small bathroom.

3. Corner-Mounted: If you need to save space, this is the best option. Corner-mounted bathroom vanities have a 90-degree angle at the back so they will fit perfectly into a corner.

What type of sink would you like?

When choosing a sink type, consider vanity style, counter space, and aesthetic appeal of the bathroom.
1. Undermount: This sink is designed to be installed under the counter for a cleaner appearance. Because there are no exposed edges, this style makes countertop cleanup easy and fuss-free. 

2. Self-Rimming: Also known as a top-mount or drop-in, this style is mounted directly into an opening on the counter, with its edges resting on it.

3. Vessel: This style is typically a bowl-shaped unit that sits on top of the counter surface. It does not require undermount installation.

How do you want to Select look: 

Style: The style of your vanity should complement the rest of your décor. Consider a clean-lined option that will match any style with ease

Finish: Most vanity tops come in a variety of finish and material options—such as, ceramic, stone, glass, and wood— that can be tailored to meet your personal taste.

Material: Choose between a wide range of base and sink materials to match the décor of your bathroom. Base cabinets come in hardwood, manufactured wood, metal, or glass. Sink materials are mostly made of ceramic, stone, or glass.

Storage: What type of bathroom (master, guest, or kids') the vanity will be installed in to determine your storage needs. There are a number of convenient features including drawers, shelves, and cabinets.

Hardware: The majority of vanities do not come with the faucets included. However, most vanity tops come pre-drilled with faucet holes, depending on your sink style. Read description carefully