How to Measure for a Vanity

Choosing the right bathroom vanity starts with accurate measurements. Whether you’re upgrading to a modern floating vanity or replacing an existing piece, taking the right steps ensures your new vanity fits seamlessly into your space.

Step 1: Measure Your Available Width

  • Use a tape measure to record the width of the wall where the vanity will be installed.
  • Standard vanity widths range from 24 inches up to 84 inches.
  • Leave at least a few inches of clearance on each side if your vanity is near a wall or door.

Step 2: Determine the Depth

  • Vanity depth usually ranges between 18–21 inches.
  • Floating vanities are often 20 inches deep, making them ideal for both small and large bathrooms.
  • Be sure to check door swings, walkways, and shower enclosures so the vanity doesn’t obstruct movement.

Step 3: Measure the Height

  • Traditional vanities are around 32-36 inches tall, while “comfort height” or floating vanities are typically 34–36 inches from the floor to the top of the countertop.
  • For floating vanities, installation height can be adjusted to fit your household’s needs.

Step 4: Check Plumbing Locations

  • Note where your water supply lines and drain are located.
  • Floating vanities often include cutouts to conceal plumbing, but aligning with your current setup can simplify installation.

Step 5: Consider Clearance and Functionality

  • Allow for door and drawer clearance so your vanity opens fully without hitting walls or other fixtures.
  • If placing the vanity in a corner, double-check that the door swing won’t interfere with handles or cabinets.

Step 6: Factor in Countertop and Sink

  • The countertop may extend ½ to 1 inch beyond the vanity cabinet.
  • Make sure this extension is included in your measurements.
  • For integrated sinks or double vanities, measure carefully to ensure adequate space.

Quick Tips for Floating Vanities

  • Wall-to-wall installation: A floating vanity between two walls offers more support and storage efficiency.
  • Corner installation: Adding side support can increase weight capacity.
  • Always confirm wall studs and reinforcements are in place before installation.

Final Word

Measuring for a vanity doesn’t have to be complicated. With accurate width, depth, height, and plumbing checks, you can confidently select the right size for your bathroom.

Looking for inspiration? Explore our full Floating Vanity Collection to find the perfect size and style for your home.

Important Note on Sizing
Most vanities are manufactured to be slightly shorter than their listed size — usually by about ⅛ inch to ½ inch. This allows for easier installation and fitting within standard bathroom layouts. Always review the product spec sheet for exact dimensions before finalizing your purchase, especially if your vanity will be installed wall-to-wall or in a tight space.

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