4 The Best 14-inch Rough-in Toilet Reviews 2022

What is the best 14-inch rough-in toilet? A toilet rough-in refers to the space between the completed walls behind the toilet as well as the middle of the drain for the toilet. The normal rough-in of the toilet is 12 inches, but you can still find rough-in toilets of 10 and 14 inches, particularly in old homes.

While measuring the rough-in for the toilet, be sure that you measure only from the finished wall and not from the baseboard.

To gauge the rough-in of an existing installation, take the distance between the walls and the bolts for the toilet. The bolts are usually located in the middle of the drain.

The search for a rough-in toilet that measures 14 inches isn’t so easy as to find an inch rough-in. There aren’t a lot of them, which is why I’ve created this blog post. In order to ensure I’ve linked you to the top 14-inch rough-in toilet on the market.

Beyond the rough-in, I will provide you with all the different toilet sizes and features to ensure you have the most effective toilet you can find. Now let’s take a look at the features.

The Best 14-inch Rough-in Toilets Overview

1. Kohler Highline

Kohler K-3949-0 Highline Comfort Height Toilet, White
  • Comfort Height Elongated Toilet bowl - With a seat height comparable to that of a standard chair, Comfort Height toilets make sitting down and standing up easier for people of all ages
  • 14" rough-in
  • 31-5/8" (80.3cm) x 18-1/4" (46.4cm) x 30-3/4" (78.1cm)
  • Class Five(R) - provides tremendous bulk waste flushing performance and best-in-class bowl cleanliness
  • 3-bolt Installation - Three pre-installed tank bolts save installation time

The first thing we must highlight about this model is the power of flushing. With a strong water-powered flush it clears the bowl thoroughly and makes it nearly impossible to block.

K-3949-0 has an extended bowl to provide maximum comfort. It requires just 1.28 Gallons of water for each flush. Due to its high efficacy, this toilet can save more than 16,500 gallons of water per year.

It also comes with a simple three-bolt quick-connect, however, it doesn’t come with the seat or the supply line.

Customers love the quiet quality of this model of toilet. Similar to the majority of modern toilets, it requires less water than previous models, which will save you on your water bills in the long run. The longer bowl is adored by users for the added convenience it provides.

Kohler K-3949-0 Highline is an elongated two-piece single flush comfort toilet with a height of. It’s available in almond, white biscuit, black and white but it’s difficult to locate it in different colors that are not white.

The Kohler Highline is a product of Kohler’s Class Five flushing system that is intended for large-scale flushing. This Class Five flushing technology involves the use of the canister flush valve, instead of the conventional flapper valve for flushing.

Contrary to the flapper that is fixed onto the valve for flushing on the other end, the lid is lifted off completely when flushing. This allows water to enter the bowl at an angle of 360 degrees.

This will ensure that the water is able to flow from the tank into the bowl more quickly, generating greater force to generate a more powerful flush. Furthermore, the valve for flushing canisters has been designed so that the water’s entry point is bigger than the one exiting.

The water is able to increase pressure inside the narrow exit, further enhancing the efficiency of flushing using just 1.28 Gallons for each flush

The Highline’s bowl’s rim is located at 16.5 inches off the ground which makes it a comfortable height toilet. This makes it more convenient for taller, older, and those with mobility issues to stand and sit on the toilet. The longer bowl also increases the comfort of using this toilet.

Installation of this as well as the other Kohler toilets is a breeze by using Kohler’s DryLock system. The bolts to the tank are already installed under the tank. The tank is not fitted with bolt holes, which reduces the chance of its leakage. All you need to do is put the tank onto the bowl, and then secure the bolts.

But you’ll be disappointed since the toilet is sold sans a seat a wax ring, mounting bolts or bolt caps. Therefore, you will need to purchase these items separately.

The dimensions for the Kohler K3949-0 Highline are 31.625 inches deep, 18.25 inches in width, and 30.75 inches in height. The purchaser will be covered by a one-year warranty that is limited after purchase.

  • Water-efficient
  • Simple to install
  • The supply line and seat are sold in separate transactions

2. American Standard Cadet PRO

American Standard Cadet PRO Compact Right Height Elongated 14" Rough-In 1.28 Gpf Toilet, White
  • Features the cadet flushing system, High Efficiency Toilet (HET), ultra-low consumption (4.8 Lpf/1.28 gpf), utilizes 20% less water; Meets EPA water sense criteria
  • Vitreous China,Space saving elongated bowl fits in space of a round front; Power wash rim scrubs bowl with each flush
  • Trade exclusive tank; Robust metal trip lever & metal shank fill valve,Includes EZ-Install tools w/color match bowl caps; Chrome finish trip lever is supplied
  • Fully-glazed 2-1/8" trap way,16-1/2" rim height for accessible applications
  • 14" (356 millimeter) rough-in,3" flush valve

American Standard has built up a reputation for being reliable, adaptable, and stylish. The American Standard model has all three features.

A slim, elongated, and compact seat and simple white finishes create a stylish and elegant toilet that is also extremely efficient. As with the two other models we talked about, this toilet uses 1.28 gallons of water per flush, making it more eco-friendly than its other, less economically-conscious counterparts.

Aside from that, it’s great to see that the majority of major toilet makers are taking this step toward decreasing the use of water.

One issue that concerns me is the sheer volume of shipments that American Standard is able to misinterpret. When reading reviews of this product it appears that this is an error that is commonplace, and is disappointing, particularly considering the fact that this is American Standard we are talking about.

  • Minimal consumption of water
  • Sleek design
  • Compact and occupies a tiny area
  • Comfort Height
  • Make from vitreous china
  • Problem with Quality Control

3. KOHLER 528484 K-3947-0 WELLWORTH

Kohler 3947-0 Bathroom-Hardware, White
  • Two-piece toilet.
  • Round front, standard height toilet bowl
  • Seat and supply line not included.
  • Class Five(R) - provides tremendous bulk waste flushing performance and best-in-class bowl cleanliness
  • K-3947 includes: K-4841 14” Rough-in Toilet tank and K-4197 Round-front Toilet Bowl

Kohler 528484 K-3947-0 Wellworth Kohler 528484 K3947-0 Wellworth is a uni-flush two-piece oval-front toilet with standard height. It comes in black, and white as well as almond and biscuit.

Similar to similarly to Kohler Highline 14-inch rough-in, this toilet uses a Class Five flushing system, which means its flushing power is exceptional. With just 1.28 Gallons per flush, the toilet has been WaterSense certified and is, therefore, able to be purchased everywhere throughout the United States.

While high-quality comfort toilets remain often the most popular toilets nowadays but standard height toilets feature “fans” along with Kohler 528484 K3947-0 Wellworth is one of them. The bowl’s rim sits at an elevation of 14.5 inches off the ground. Standard toilets that are taller are a good option for those who are not tall or have children.

The toilet features a round front bowl. Although elongated toilets are said to be comfy round-front toilets are an excellent option when you have a tiny bathroom and want to save every square inch of space.

Kohler Wellworth 14-inch also uses the DryLock tank installation system. This installation system utilizes three bolts that make the toilet tank extremely robust and stop leaks between the elongated bowl and the tank.

It is also not equipped without a toilet seat a wax ring, mounting bolts, or bolt caps. The purchase of these items on its own will obviously raise the overall price that the toilet.

It’s Kohler 528484 K3947-0 Wellworth measurements are 29.625 inches deep, 18.25 inches in width, and 28.75 inches in height. It comes with a limited 1-year warranty.

  • Five-year warranty
  • Comfortable
  • A little expensive

4. Kohler Wellworth K-3948

Kohler 3948-RA-0 Bath Hardware, White
  • Elongated, standard height toilet bowl
  • 14-in (35.6 cm) rough-in
  • 31-5/8-in (80.3 cm) x 18-1/4-in (46.4 cm) x 28-3/4-in (73 cm)
  • Class Five - provides tremendous bulk waste flushing performance and best-in-class bowl cleanliness
  • 3-bolt Installation - Three pre-installed tank bolts save installation time

In the midst of every Wellworth Toilets, this one is among our top picks. It’s not just because it’s a 14-inch rough-in toilet and has amazing features. From the beginning, we noticed that this unit comes with a siphonic jet flush is a perfect way to clean all waste in one move. The large surface of the water helps keep the toilet bowl clean and lessens the stink.

The toilet is fitted with an extended toilet bowl, this isn’t the optimal choice for smaller bathrooms. Despite this, the long rim length makes it extremely suitable for adults. The model also comes with stunning glossy finishes, making it a stunning design for the modern bathroom.

While there aren’t many reviews, however, the majority of customers appear to be satisfied with this product. The flush works and specifications are precise.

  • Five-year warranty
  • Comfortable
  • A bit expensive

What is Rough-In?

What is Rough-In?

Before we go into the specifications you’ll require for you to install your toilet and the method of getting them, you must define what exactly is rough-in.

A toilet rough-in refers to what is the space between the wall that surrounds your toilet to the middle of the pipe, where the waste exits the toilet.

You may have noticed that the norm in American toilets is 12 inches. However, there are some that are 10 inches, while others are 14 inches.

It is largely dependent on the distance that the waste outlet pipe connects to the wall.

How Do I Measure The Rough-in?

You might be asking yourself, “How am I going to know what size rough I require to finish in my bathroom?”

The answer lies in the measurement.

To determine this, you’ll need a measuring tape and an even hand.

Apply the point of the tape on your wall (make sure that you’re on the wall, not the molding beneath it, since this may change your measurements, and the measurements must be exact).

Take note of the distance between your wall up to the cap of bolts that are at the bottom of your toilet.

Be aware that if you’ve got thick walls due to drywall or something similar it is important to account for the wall’s thickness.

Rough-In Measurement Tips

Rough-In Measurement Tips

There are four precise measurements prior to you installing your rough-in toilet of 14 inches.

1. Toilet Flange and Back Wall Distance

When you are measuring by observing the walls behind ensure you place the toilet’s flange at 12 inches to the wall. This generally applies to all toilets that have this size of rough-in. But make sure to check the specifications and take measurements according to the specifications.

2. Center of Unit and Sidewall Distance

This number shouldn’t be smaller than 15 inches as that’s how much space you have between the new bathroom and your side wall or any other fixture from both ends. For instance, if the tub is adjacent to the commode It should be at a minimum 15 inches from the commode or greater.

3. Front of the Toilet and Other Fixtures Distance

This measurement could differ among countries due to it being based upon local codes for plumbing to determine normal distance. If the plumbing requirements in your area fall under IPC then you’ll need a minimum of at least 21 inches of clearance. If, however, you live in a town that is not covered by UPC then you’ll need more than 24 inches. Keep in mind that this is the space between the front part of your bathroom and any other wall, door, or other similar obstruction.

4. Water Seat And Supply Line Placement

Find the middle of the closet flange, and take a measurement of 6 inches from left to right. After that, move seven inches higher than the floor. That is the best position to place the line for water. If the water line is too high or too low, you may need to repair it that could end up looking quite ugly. You could even extend it six inches higher than your floor but no less than that.

Buyers Guide for 14-Inch Rough-In Toilets

Buyers Guide

Here are seven points to take into consideration when purchasing the latest rough-in toilet, 14 inches.

Water Consumption

There are two benefits to selecting a high-efficiency toilet: the use of water in a month and concern for the earth. When you consider that toilets are responsible for 30 percent of the residential water consumption, you will understand the significance of this to your budget for the month. Some states require the installation of high-efficiency toilets as the widespread use of these toilets reduces the requirement to restrict water usage during dry periods.

Bowl Shape

Toilet bowls can be either round or elongated and both offer advantages. The longer basins feel more comfortable however, they require larger spaces. In certain situations, just a few inches may be too excessive. This is the reason why bowls with rounded sides are great for bathrooms that are smaller than elongated bowls.

Toilet Price

A new toilet purchase is a long-term investment and price is the main element to be considered. It is advisable to determine which features are essential to you, and then you’ll be able to make a wise choice. If you’re looking for a toilet with LED lights, remote control, and heating adjustment on the seat, Go for it! It’s going to cost you more, but it could be worth it.

One-Piece vs. Two-Piece

One-Piece vs. Two-Piece Toilet

Both styles have advantages and disadvantages. The one-piece designs look elegant, which makes them perfect for contemporary bathrooms. They are also simple to maintain because there are fewer corners and crannies that could be prone to dirt. Because they’re one piece, they will almost never result in leaks. However, when a single-piece toilet is damaged, you must replace the entire unit. They’re also heavier and harder to carry to the location of installation.

Two-piece units are generally less expensive however, connecting the bowl and tank makes installation more time-consuming. They’re also bigger and more susceptible to dirt and are not suitable for bathrooms with small spaces. Therefore, if you’re seeking a less expensive option, a two-piece unit is the best option.

Glazing Finish

As we are using toilets all throughout the day, it is crucial to take this into consideration. If your toilet is smooth, the waste will easily slide down and will not stick. This means you’ll require less work, and the toilet will be cleaner and free from all the potential bacteria and mold. If you’re looking for toilets with high-quality glaze, you can search for labels like EverClean (American Standard), Cefiontect (TOTO) as well as Sanagloss (TOTO). They have been tested numerous times throughout the time.


Accessibility is a second factor to take into consideration, particularly when you are a family with children who are young older, or physically challenged individuals. If you’re trying to be certain that your bathroom doesn’t have accessibility issues, you should look for an ADA-compliant toilet. These typically have slightly taller bowls, which ease the stress on muscles and joints when you sit. There are also bowls that are elongated to provide greater comfort.


Some units don’t have the same trapways. But what’s the difference? If you have a larger trapway the toilet will be able to push more waste through, but it’s not necessarily necessary. The trapways of larger models can cost more, but an ordinary trapway is typically enough for a typical residential toilet.

So, What To Look For When Buying A 14 Inch Rough-In Toilet?

  • Water Consumption: The quantity of water used in toilets is something that must be taken into consideration prior to deciding on a purchase. The most undesirable thing is a toilet that uses more water than is required. This not only means a higher operating cost for you, but it’s also bad for the environment. As we’ve mentioned in the past, many toilet makers are aiming to make their toilets eco-friendly, therefore, you’ll notice that many modern toilets use fewer gallons of water for each flush.
  • Bowl Form: Toilet bowls can be found in two primary shapes, round or extended. A majority of people prefer elongated ones because they tend to provide more comfort. However, round bowl toilets can be useful in bathrooms with limited space since they require less space than their counterparts with a longer shape. So, you should consider which design you’d like to pick.
  • Price: It is something you must be thinking about prior to buying anything unless, of course, you’re a millionaire. In that situation, could I get one million dollars? Yes, but for the real, you do have to evaluate the value of the purchase prior to making the purchase. In addition, the unit price isn’t the only thing you need to think about. The price of installation or the cost of replacing parts is all things to consider before making a decision on the best unit for you.

Our Favorite 14-Inch Rough-In Toilet?

It’s hard to provide a suggestion because it will vary on the particular situation.

However, if we had to pick only one model it would be hard to be wrong with Kohler K-3949 Highline. With its sleek, comfortable design, and low water consumption Simply put, you’ll enjoy the exceptional performance.

Some may consider it a bit expensive, however, you truly get the value you pay for with this device.

You are welcome to conduct further research, talk to your local plumber or handyman and find out what’s best for you.

Look also – 7 The Best raised toilet seats Review 2022


Can You Replace A 10-Inch Rough In Toilet With A 12 Inch?

The ideal toilet’s rough-in is supposed to match the rough-in of the plumbing in your bathroom. Even if a toilet is made to have a 10-inch rough-in it is still possible to install it in a room with a 12-inch rough-in.

What is a standard rough in?

The most common rough-in measurement will be twelve inches but you might see rough-ins of 10-inch or 14-inch in older houses. The rough-in size is to the toilet’s specifications.

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