14-inch Rough-In Toilets with Longer Fit – Best 6 Reviewed in 2022

You might think that buying a replacement toilet is pretty simple – just find a toilet with the features you like and press the ‘buy’ button. However, there are a few important considerations that will help you make a successful decision. One of the main ones you should pay attention to is the rough-in

A toilet rough-in is the distance from the finished wall to the center of the toilet’s floor drain or waste outlet. The measurement is best made before the old toilet is removed. The most common measurement for a toilet rough-in is 12 inches, but if you have a 14 inch model to replace, there are still high-quality options to choose from.

When buying a new toilet, your options will be a bit limited, but there are still some great models out there, including the models mentioned in this list.

Top 14 inch Picks

💧	Best ValueBest ValueChosen as the best bang for the buck on this 14-inch rough-in toilet	American Standard Cadet PRO
💧	Editor's ChoiceEditor's ChoiceWe pick our favorite model based on style, function, customer feedback, and cost effectiveness.	Kohler Highline K-3949-0
💧	Most CompactMost CompactChosen based on the size	Kohler Wellworth 3947-0
💧	Runner UpRunner UpThe editor's second best choice in this review	Kohler Wellworth 3948-T-0
💧	Best HeightBest HeightChosen due to its accessible friendly height	Signature Hardware Bradenton

Rough-in Measurements Explained

If you are buying a new toilet, it’s essential to know what a rough-in is and how to properly measure it. The rough-in is a distance between the wall and the mounting holes on the flange. Toilets usually have 10 inch, 12 inch, or 14 inch rough-in, with 12 inch being the most popular in the US.

You can even replace a 14 inch rough-in with a 12 inch version, but you will end up with a 2 inch gap. However, you can solve the problem by installing an offset toilet flange. You might need a new wax ring and mounting bolts when replacing your old commode with an updated model.

Difference Between Rough-ins

While most toilets have a rough-in of 10 or 12 inch, a 14 inch rough-in is less common. A 10 inch version is much slimmer since it has to allow for a shorter distance. On the other hand, 14 inch rough-in tends to be much bigger and longer, which can impact the overall style of your new toilet.

In most cases, if you have a compact bathroom, or if your house is older, you will find a 10 inch rough-in on your toilet. Also, there is a good chance that the bowl you choose will be round.

A 12 inch rough-is are the most common because it can fit toilets of almost any type and style. However, even though it’s the standard size, be sure to do proper measurements before buying a new commode.

Comparisons of the Our Top Picks

 Reviews of the 6 Best 14-inch Rough-In Toilets

1. Kohler Highline K-3949-0 Toilet  – Editor’s Choice

“It’s no surprise that Kohler delivers yet another fantastic product. We love the Highline for its powerful flush and classically quaint exterior.”

What Customer Say

This toilet’s reviews were overwhelmingly positive. Multiple users were pleased with the ease of installation and the speed of the tank filling with this valve. Most discontentment stems from the seat and supply line not being included.

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2. American Standard Cadet Pro – Best Value

“Flush away all your worries with the American Standard Cadet Pro – a beast of a toilet that has a MAP score of 1,000.”

Overall Customer Reviews

Overall, customers like this compact, 14 inch rough-in toilet.  Some buyers needed to contact customer service about the toilet’s state upon arrival but were very happy with the help they received. Customers mention the strong, effective flush, saying it works great and cleans any lingering streaks.

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3. Kohler Wellworth K-3947-0 Toilet – Most Compact

“The Kohler Wellworth is exactly as the name suggests – well worth your time and attention!”

Our Take on Reviews

Buyers were delighted about the quality of this unit. They like the power behind this compact option, with one review stating: “It’s more specific to our needs in a small bathroom closet with the lower profile and a 14” rough-in setback.” The height isn’t for everyone, as taller individuals and those with mobility issues are unable to comfortably use the toilet.

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4. Kohler Wellworth K-3948-RA-0

“The Kohler Wellworth K-3948-RA-0 is the K-3947-0’s fraternal twin, with its differing bowl shape, but same high-quality design.”

Review Summary

Though reviews are limited, buyers like the toilet’s effective flush mechanism and eco-friendly water usage. Users also boast about the simplicity of the toilet’s three-bolt quick-connect installation.

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5. Kohler Wellworth K-3948-T-0 – Runner Up

“The best things come in threes. The Kohler K-3948-T-0 Wellworth is the third model in the Wellworth collection and features fantastic Kohler staples alongside some new additions.” 

Review Summary

Although not many reviews are available for this model, users have voiced their contentment with the toilet’s eco-friendly water usage and sturdy tank cover locks.

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6. Signature Hardware 948425-14-L Bradenton  – Best Height

“If you’re looking for simple and easy, the Signature 948425-14-L Bradenton is the way to go.” 

Review Summary

Not many reviews are available for this unit, but the ones shown praise the toilet’s suction strength and comfortable chair-like height.

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Buyers Guide for 14-Inch Rough-In Toilets

Here are seven factors to consider when buying a new 14-inch rough-in toilet.

✓ Water Consumption

High-efficiency toilets are more eco-friendly and save you money on your water bills by reducing water consumption. Considering the fact that toilet use is responsible for 30% of residential water usage, you can see where this is important to your monthly budget. Many states also require the installation of high-efficiency toilets, because with widespread use they reduce the need for water restrictions during drought conditions.

Take a look at the difference between 1.28 vs. 1.6 GPF toilets.

✓ Bowl Shape

Toilet bowl shapes can be either round or elongated, and both of these have their advantages. Elongated bowls are more comfortable, but they take more space. In some situations, even a few inches can be too much. That’s why round bowls are excellent for smaller bathrooms.

✓ Toilet Price

Buying a new toilet is a long-term investment, and price is always a primary factor to consider. It would be helpful to prioritize the features that are important to you, and then you can make a smart decision. If you want a toilet with LED nightlights, remote controller, seat height adjustment – go for it! It will obviously cost more, but will be worth the extra money.

✓ One-Piece vs. Two-Piece

One-piece units look stylish and luxurious, making them ideal for modern bathrooms. They are also easy to maintain since there are fewer nooks and crannies susceptible to dirt. Since they come as a single piece, they almost never cause leaking. 

On the other hand, if a one-piece toilet breaks, you need to replace the whole unit. They are also heavier and more difficult to carry to the installation location.

Two-piece units are usually cheaper, but connecting the tank and the bowl increases installation time. They are also larger, more susceptible to dirt, and not ideal for smaller bathrooms. 

You may be interested in our reviews of one-piece toilets.

✓ Glazing Finish

Since we use toilets every day, glazing is important to consider. If the unit has a smooth surface, the waste will much easier go down and won’t stick. It means that you will have to do less maintenance, but also, the toilet will be more hygienic without all the possible bacteria and mold. 

If you are looking for a unit with a high-quality glaze, search for labels such as EverClean® (American Standard), Cefiontect (TOTO), and Sanagloss (TOTO). These have been tested many times over the years.

✓ Accessibility

Accessibility is another essential thing to consider, especially if you live in a family with young children, elderly, or physically challenged people. ADA-compliant toilets have slightly taller bowls, which release tension on joints and muscles while you are sitting. They also have elongated bowls, for superior comfort.

Read more about our ADA-compliant toilet reviews.

✓ Trapway

Not all units have the same trapways, but what is the difference? With a large trapway, the toilet can push more waste, but that’s not always necessary. Units with larger trapways can be more expensive, but a standard trapway is normally more than sufficient for a residential toilet.

Measuring Tips

There are four accurate measurements before you can install your 14-inch rough-in toilet.

1. Toilet Flange and Back Wall Distance

While taking measurements from behind the wall, be sure to center the toilet flange at a distance of 12 inches from the wall. This usually applies to most toilets with this size of a rough-in, but check the specifications and measure accordingly.

2. Center of Unit and Sidewall Distance

This measurement shouldn’t be less than 15 inches because it’s the distance between your new toilet and the sidewall, or any other fixture, on both sides. For example, if the tub is next to your commode, it should be at least 15 inches away or more.

3. Front of the Toilet and Other Fixtures Distance

This measurement might vary between countries since it mainly relies on local plumbing codes for standard distance. If plumbing requirements in your area are under IPC, you will need, at a minimum, 21 inches of clearance. 

However, if you live in a city that is under UPC, you will need at least 24 inches instead. Remember, this is the amount of space between the front-most side of your toilet and any wall,  door, or other similar obstruction.

4. Water Supply Line Placement

Find the center of the closet flange and measure six inches to the left. Then, go seven inches up above the floor, and that is your ideal position for the water supply line. If the water line comes too high or too low, you might need to do additional repairs, which might turn out very ugly. You can even go six inches above the floor, but not lower than that.

You may be interested in our guide about toilet measuring tips.

Frequently Asked Questions

Should a Toilet Tank Directly Touch the Wall?

It depends on the rough-in of the unit. If it’s smaller, you will have some space – if it’s not, then it may touch the wall.

Can I Change the Rough-in Measurement of My Unit?

Usually, when you replace a toilet, it should have the same rough-in measurement as the previous unit. However, if the rough-in is larger, you will need to modify the plumbing configuration. The only other option would be to move the wall.

What Is the Minimum Clearance in Front of the Toilet?

As a rule of thumb, it should be at least 21 inches. There shouldn’t be any wall or fixture within that distance. Also, the distance shouldn’t be less than 24 inches when it comes to the Uniform Plumbing Code. These are, however, the minimal measurements; the distance can be much greater than that, as long as it’s comfortable to use the toilet.

Final Thoughts

Although 14-inch rough-in toilets are less common, you will be satisfied with any unit from the list. These are all manufactured by popular companies and made from top-quality materials, so decide what features are important to you and get started with the installation!