Measuring a Bathroom Sink for Replacement

Bathroom Sink

If you're looking to replace your sink, measuring it first is an important step. It is important to note that the size of the new plumbing fixtures will be determined by the size of the sink. Make sure that the two sizes match before making a purchase. You'll also want to know what style and finish you prefer, but most importantly, measure your current kitchen sink before heading out shopping for a new one. Look into web site if you require details resources concerning bathroom sink.

When Should You Replace Your Sink?

If you've noticed water leaking from underneath your sink, it's likely that the seal has been broken and needs to be replaced. This is an easy fix and will help prevent leaks and water damage to your property.

If your sink is showing signs of rust, a good way to combat this is with a sinking liner. This will protect the surface from any more damage and make it easy to clean.

How to Measure Your Current Sink for Replacement?

Bathroom Sink

There are three measurements needed to replace your sink. The following steps can do this measurement process:

Measuring Width

  1. Locate the widest center of the sink without including handles or outer trimming.
  2. Mark the wall with a pencil.

Measuring Depth

  1. Measure from where you want your new sink to go to the bottom of the sink. For example: if an existing sink is installed about 3" above the countertop, measure 4" below the countertop or about 7" below the installation surface.
  2. Mark with a pencil on the wall.

Measuring Diameter

  1. Measure across the topmost inner edge to the topmost outer edge without including handles or outer trimming. Example: If the existing sink has a diameter of 8", measure this distance without including any handles or external trimming.
  2. Mark the wall with a pencil.


If your sink is mounted flush with the countertop, you don't have to worry about measuring too high or low. But if it's recessed below the countertop, measure from the installation surface rather than the countertop’s surface.

You can also use a length of string to measure the diameter by holding one end at the center of the sink on the inside. With your other hand, wrap the string around the outer edge of the sink and mark where it meets with the first end. You can use this length of string to measure depth as well.

Tips for Maintaining Your New Bathroom Sink

If you just replaced your bathroom sink, there are some things that you want to do to maintain it. One of the most important is to keep it clean. You can use soft cloths and non-abrasive cleaning products for this. When it comes to stains, you will need a scrubber such as abrasive soap.

If there are any scratches or stains on the bathroom sink, you can use a mild abrasive cleaner. If you're looking to shine your new sink up, some cleaners can give it a nice sheen and make it look new again.


Measure your bathroom sink and take note of the measurements. You may want to measure both sinks if you’re replacing an old one with a new model; this will help make sure the dimensions are accurate. The size, shape, and style should be considered when you shop for a new one to avoid wasting time or money on something that doesn't fit in your bathroom.


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