# How To Measure Tub Drain Size? (Described for Everyone)

That will show you the length and width of your drain. If you need a bathtub drain, your local hardware or home improvement store should have it. Now that you have your measurements, it’s time to cut the pipe to length. You’ll want to make sure that your pipe is at least 3/4″ longer than the height of your tub.

If you’re using a tub that’s taller than 6 feet, you’ll need to use a longer pipe. It’s also a good idea to measure the width of the tub so you know how much longer it will be before it overflows.

This will help you determine how many feet of pipe you need, and how far apart the pipes should be so that they don’t get in the way of each other when the water is flowing through them.

## What is the standard tub drain diameter?

A standard modern bathtub drain is 1 1/2 inches in diameter and is straight across the middle. For a 1 1/2-inch drain, rough-in plumbing should be calculated. If you are unsure of the diameter of your drain, you can measure it with a tape measure or a ruler. The first step is to determine how deep your tub drain will be.

You can determine the depth of a drain by measuring the distance from one end of it to the other. For example, if you have a 3-foot-long drain and you want to know how much water it will take to fill the tub, measure the length from the end closest to you to that end furthest away from you.

Then divide that number by 3 to get the amount of water that will fit in the drain hole. This number is called the “depth of drain” or “drainage depth.” If the number you get is less than or equal to this number, then you don’t need to worry about it. However, it is always a good idea to double-check your measurements to make sure they are accurate.

## Do they make different size tub drains?

If you have a tub drain that is larger than your shower drain, you will need to use the larger size of the drain for your tub. If you do not have access to a drain fitting, or if you are not sure which size is right for you, it is a good idea to consult with a professional plumber.

## How do you measure a drain?

Before measuring any product that goes into a drain, you need to remove the drain cover/grate. If you’re in doubt, round up to the nearest 1/2 inch. If you are measuring the size of your drain holes, make sure that you measure from the bottom of each hole, not the center. This will ensure that your measurements are accurate.

## Can you replace drain in tub?

Regardless of the type of bathtub you own, bathtub drain removal and replacement can be done easily. You can replace the bathtub drain with a different style if you know how to remove the tub drain.

## How do I choose a bathtub drain?

Look for a finish that will coordinate with the other finishes in the bathroom when choosing a bathtub drain finish. It should complement the colors and finishes already chosen, from the sink faucet and bathroom hardware to the tub faucet, shower head, and shower curtain.

## Are bathroom tub drains universal?

Most standard bathtubs have the same size drains, which are 1.5 inches wide. For example, the size of the drain can affect the amount of water that can be drained from the tub.

A larger drain will drain more water than a smaller drain, so you’ll need to make sure that your drain is large enough to handle the water you want to drain from your tub, and not too small that it won’t be able to keep up with the flow. Another important consideration is the type of drain you’re going to use.

The first is a standard drain that is designed to be used with standard-size tubs. This type is called a “standard” drain because it has a diameter of 1 inch and a height of 2 inches. Standard drains are the most common type used in the U.S., but they’re not the only type available.

## Are all bathtub drains in the same spot?

The position of the tub drain will vary, depending on the size and design of the tub, and you’ll need to cut an access hole in the floor at the drain end of the tub to allow for easy access.

If you’re using a tub that has a drain that’s larger than 1/2″ in diameter, you may have to drill a hole to accommodate the larger drain. If you have a smaller drain, it may be easier to just cut a small hole and drill the hole for you.

## What are the rough in measurements for a bathtub drain?

The drain hole needs to be at least 12 inches away from the wall and 9 inches in scope. You can rough in the drain with a 1.5 inch pipe. The male and female threads should extend a half-inch above the top of the pipe and a half-inch below the bottom.

The pipe must be long enough to allow the water to drain through it, but not so long that it will interfere with the flow of water into the toilet bowl. If you are using a drain that is too long, you will have to cut it down to a length that will fit through the hole.

The water pressure in your toilet should not be too high or too low. Too much pressure can cause the bowl to overflow and cause damage to the plumbing system. A pressure gauge is a good way to check the pressure level in a toilet. Water pressure is measured in pounds per square inch (psi).