Monday, February 6, 2023
new kitchen faucet!
Shot of an unrecognizable woman washing her hands in the kitchen sink
Home ImprovementHome Decor

How To Measure A Bathroom Sink: What You Need To Know


When buying a new faucet for your kitchen or bathroom sink, what’s the first thing you need to know how deep the sink is? If you guessed “how far down the pivot point of the faucet is,” then everyone might want to make plans to run out today and purchase a new kitchen faucet! However, the pivot point is not the only thing that can determine how tall a sink is. What if there was a much simpler way to calculate this than by simply guessing? 

Types of sinks

Before you plan what type of sink you want to install, it’s important to know the types offered and which sink will work best for your needs.

How to measure a sink in flat feet

Whether you want to measure a delta-shaped or rectangular sink, the base of the sink must be level and plumb. To determine this, create a mark on the edge of the sink where water drains from the side into your tub or spout (part 4). From the mark, measure 96 inches to either a 90-degree angle or all the way around in a complete circle to get the circumference. Connect these values to each other, divide them by 2.4 and convert both numbers into feet for 93 inches instead of 96 inches in order to get 7.875 ft.

The U.S. Standard Inch faucet measurement

Sink measurement is a type of plumbing that lets you know how much water your bathroom sink can hold. This can be done by whatever size the faucet is or in imperial measurements. It also depends on the U.S. Standard Inch measurements. You will want to find out what measurement your sink wants before measuring so that you don’t make any mistakes. Before measuring, ensure that you have enough water and that you are measuring from the back of your sink to the front, which should be about two inches long for standard sinks to pass through the strainer rim.

Non-standard and custom faucet installations

Bathroom sinks can be difficult to install. Non-standard or custom faucets are a common cause of difficulty in their installation. In order to avoid unnecessary further complications, it is important for you to know the size and type of your toilet before you purchase fixtures for it.

Why is the size important?

There are two types of sinks for the average homeowner: vanity and kitchen

How do I know if my faucet matches the U.S. Standard?

One of the most important components in your bathroom is the faucet. A faucet regulates how much water comes through the pipes, so you need to make sure that the sink side is sized properly first before buying a faucet. The “U.S. Standard” size for a bathroom sink is 3 inches on the high side and 3 1/2 inches on the low side; but if you do not have this standard size, follow the manufacturer’s instructions and measure from where your current faucet mounts to ground level, up from there to find out what measurement was needed for your particular installation.

What brands have urethane-treated cast iron sinks?

There are three main types of sink faucets with different features and options. The urethane-treated cast iron sink is one type, with a knob-style hand sprayer. It also has a pop-up drain that makes any water flow you want even easier.

When should you replace your sink’s drain unit?

One small part that often goes unnoticed is the drain unit. If you are unsure of when you should replace it, consider replacing it six months before your next scheduled disposal service to prevent a big mess. It is important for the drain unit to have an extension into your basement or attic so it does not have a lot of space to cause any damage from falling objects that could originate in these areas as well.

Blog Conclusion

A standard bathroom sink is 8 inches tall. To measure the size of your bathroom sink, simply allow a decent amount of room at the top and bottom of the sink in your head measurements. For example, if your head measurement is head up to 16 inches wide, then you would use 16 inches for the height of your sink (you could also just consult a ruler to see what size you’ll need).


Rinku Malik is a regular contributor at and, He is a digital marketer, passionate with his work, and likes to serve the services of SEO, WordPress website management, and Social media marketing.