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Best 14 Inch Rough in Toilet in 2023

Best 14 Inch Rough in Toilet

Before we begin let us try to know about rough-in. A toilet rough-in is the distance between the toilet drain and the finished wall behind the toilet. These come in different sizes and shapes. The standard rough-in of a toilet is about 12 inches but you will also find 10 and 14 inches rough-in toilets in old houses. You should take care while measuring the rough-in of a toilet that you indeed measure from the finished wall and not the baseboard. To measure the rough-in of an already installed toilet measure from the wall to one of the toilet bolts. Normally the bolts are at the center of the drain.

Finding the best 14-inch rough-in toilet is not as easy as a 12-inch rough-in toilet. I have written this post to make sure that I have linked you to the best rough in toilet in the market as there are not many of them in the market.

Before buying a 14-inch rough-in toilet keep in mind that these are best rough-in for small bathrooms and older homes. I am also giving you the 14-inch rough-in toilet dimension features to make sure that you end with the best one. There are the latest models which are also included in my list of reviews. Read more about Best Kohler Toilets in 2022.

5 best 14 inch rough in toilet home depot

1. Kohler 528484 K-3947-0: Best standard height toilet

best 14 inch rough in toilet

The Kohler Wellworth 14 inch rough-in toilet is a two-piece, single flush round-front standard height toilet. It is available in black almond and biscuit colors. This toilet uses class-five flushing technology meaning that it has a great powerful flushing system. This toilet uses only 1.28 gallons per flush hence it is WaterSense certified and can be sold anywhere in the United States. Although these toilets have no comfortable height, standard height toilets have their own users and this toilet is also one of them trusted by its users.

The bowl rim height of this toilet is about 14.5 inches from the floor. These toilets are a great choice for those people who are not very tall and also for children.  It has a round-front bowl and maybe your great choice over eliminated toilet bowls if you have smaller bathrooms. This toilet does not come with a seat, wax ring, mounting bolts, and caps, buying these products separately will slightly increase your total price of the toilet. 

Kohler Wellworth uses 3 bolts which makes the tank really sturdy and prevents leaks between the tank and the bowl. It has a warranty of 1 year. 14-inch rough-in toilet dimensions are:
Depth: 29.625 inches
Width: 18.25 inches
Height: 28.75 inches


  • Made with durable materials
  • Powerful flushing
  • Uses 1.28 gallon per flush


  • Not come with mounting bolts
  • Trip lever present on left side

2. TOTO AQUIA IV Toilet: two piece 14″ rough in toilet

TOTO AQUIA IV Toilet two piece 14 inch rough in toilet

There are several best flushing toilet models of Toto but Toto Aqua IV is the best and different from all other models because they are fully skirted and also dual-flush. Toto Aqua IV is a two-piece, elongated, dual flush, standard-height skirted model. It is an improved model of the famous Toto Aquia II. here are some of the outlines which make this toilet the best to buy as compared to other toilets.

Aquia IV has a strong flushing system because it uses a Tornado flush system. This flushing system uses an extra large 3-inch flush valve, 2 powerful nozzles, and a fully glazed trap way. It gives a quiet flush as compared to most toilets. This toilet has two flush buttons, a smaller and a larger one, to save you water bills. Its flush button is present on the top of the tank. The bigger buttons are for solid waste while the small button is for liquid waste.

This toilet uses 0.8 to 1.28 gallons per flush and is therefore CalGreen and WaterSense certified. Therefore it can be sold anywhere in the United States without any restrictions. The amazing thing about this toilet is that even though it has a rough-in size of 12 inches, it can also be installed in a bathroom with a 10 or 14-inch rough-in size without Toto uni-fit adaptor.
The dimensions of the Toto Aquia IV are:
Depth size: 27.56 inches
Width size: 15.5 inches
Height size: 29.25 inches
Seat height size: 17 inches


  • Meets calGreen and WaterSense requirements
  • Cefiontect ceramic
  • Soft seat
  • Tornado flushing system with Quiet flush
  • Less water consumption


  • Cannot be install in commercial bathrooms

3. Kohler K-3948-RA-0 Wellworth: Best elongated toilet

Kohler K-3948-RA-0 Wellworth Best elongated toilet

The Kohler K-3948-T-0 Wellworth toilet is an elongated, two-piece toilet with a 14-inch rough-in size. It uses 1.28 gallons per flush and has a standard height. This toilet offers you a sleek and elegant design with a 15-inch height which may or may not be good for some people. Due to its less water consumption, this toilet is WaterSense certified which means that it has a powerful flush system with excellent water efficiency. Kohler 14” rough-in toilet uses Kohler class five flushing technology providing a powerful flush.

Cleaning the bowl of this toilet is very easy. As this toilet has an elongated toilet bowl and rough-in tank therefore difficult to use in small-sized bathrooms as compared to larger or medium-sized restrooms. The performance of the flushing system along with great water efficiency and its elegant and sleek design makes this toilet a solid choice for those people who want these features. The seat is not included in this toilet.

The design of this kohler model makes it stain resistant. You have no need to clean the bowl of the toilet all the time. The dimensions of Kohler K-3948-RA-0 Wellworth are:

  • Depth size: 31.625 inches
  • Width size: 18.25 inch
  • Height size: 28.75 inches

Toilet Seat is not included in this.


  • Quiet toilet
  • Stain resistance
  • Two-piece
  • Sleek design


  • Seat not included
  • Standard height seat

4. Kohler K-3949-RA-0 Highline:

Kohler K-3949-RA-0 Highline Comfort Height Toilet

Kohler K-3949-RA-0 Highline is a two-piece, elongated, comfort height seat toilet and uses 1.28 gallons per flush making it water efficient. It combines power, efficiency, and comfort of the seat in one package. This toilet uses a single, gravity flush with a very little chance of blockages occurring while handling a lot of waste. Kohler highline is WaterSense certified  as it has low water consumption.

It also meets the requirements of EPA and Calgreen standards. Its two-piece feature is sometimes irritating as joining both parts while installing is time-consuming. It has a bowl height of about 16.5 inches which makes this toilet ADA compliant. All these features have made this toilet eco-friendly. It is a floor mounted toilet which has a right hand trip lever and is made from ceramic china. This toilet has awesome features which makes it a solid choice for people.


  • Great water efficiency
  • EPA and CalGreen compliant
  • Comfort height make it ADA compliant
  • Eco-friendly features


  • Relatively expensive

5. Kohler K-3947-RA-0 Wellworth Toilet:

Kohler K-3947-RA-0 Wellworth Toilet

Kohler K-3947-RA-0 Wellworth Toilet is a two-piece, round bowl toilet. It uses 1.28 gallons per flush which makes it WaterSense certified. The feature of a round bowl makes it perfect for people having small restrooms and want to save every possible inch of space.

This model of kohler uses a Canister type flush valve which provides smooth flushing actuation and has excellent water efficiency. It is a floor mounted toilet which is made of highly durable ceramic which is very attractive and very easy to clean.

Kohler K-3947-RA-0 Wellworth Toilet uses the class five flushing system of kohler which provides tremendous bulk waste flushing performance. One thing about this toilet that I would say cons of this toilet is that the seat and cover are not included with this toilet. Cleaning the bowl of this toilet is also very easy as it is furnished and looks very elegant. The dimensions of this toilet are:
Depth size: 
Width size: 
Height size:


  • Water efficient
  • Powerful flushing system
  • Bowl cleaning is easy


  • Has Round bowl
  • Not come with seat and cover

Guide to Buy The Best Kohler Rough-in Toilet

Before settling on a specific product take your time to read our guide so that you can buy the best rough-in toilets from the market as in our reviews you can only be limited to only 10 products. So what are the factors to consider while buying the best rough-in toilet? Let us have a look at them.

Round VS Elongated Toilets:

Round bowl toilets have a circular bowl  which is 16.5 inches long while elongated bowl toilets have an oval-shaped bowl which is 18.5 inches long on average. Round and elongated toilet bowls have their own advantages and disadvantages.

One of the main advantages of installing the round bowl toilets is that they carry less space and can be easily installed in small bathrooms as compared to elongated bowl toilets. On the other hand, elongated toilet bowls have a larger surface area for sitting to provide comfort to their users.

Standard Height vs Comfort Height Toilet:

Comfort height toilets have a toilet bowl rim height of about 17 inches and are also called as chair height, universal height or ADA compliant toilets while standard height toilets have a bowl rim height of about 15 inches which is not comfortable for everyone.

14-inch rough-in comfort height toilets are ADA compliant and have a chair height therefore these are best toilets for the seniors, tall or which are physically impaired or who would have a sitting and standing problems. However standard height toilets have their own advantages as they are the best toilets for children and not too tall people.

Brand Of The Toilet:

The brand of the toilet also matters. If the brand you are going to choose has a history of making great products then you can trust it more. The opposite of it is also true. I have focused on all the top brands of toilet in United States which have patented flushing styles and toilet designs which their users love.

Water Consumption:

The toilet you buy must have the feature of low-water consumption as 1.28 gallons per flush. We are trying to review the toilets with low water consumption. It means they will save your electricity bill and are WaterSense certified therefore can be sold all over the USA without any restrictions. Despite their low water consumption they also flush very powerfully and amazingly well due to the engineering enhancements that have been done on their flush valves. If you are going to replace your old 3.5 GPF 14 inch rough-in toilet with any of these toilets you will enjoy your trips to the bathroom more due to the strong flushing toilet.


Buying any toilet is your long-term investment, so budgeting is one of the most important factors to consider. Of course, you are a millionaire. Investing slightly more money than you planned may be more useful for you. Also clarify and try to cover all your desired features in your planned budget. If you want a toilet with a LED illuminating light seat, heat adjustment and many more don’t be surprised by the budget of a couple of thousands.


Best 14 inch rough-in toilets are considerably rarer in the market as compared to 12 inch rough-in toilets. Often, this means that it is difficult to find the 14 inches rough-in their high-quality product. I hope that this research will resolve the issue of time-consuming which involves the consumer’s research. We believe that we have found the top best 14 inch rough-in toilets for you. All of these toilets are manufactured by popular trusted companies and made with high-quality materials. But if you still want to shop on your own, be sure to read our buying guide to buy the best one in the market.

Frequently Ask Questions:

Does Toto have 14-inch rough-in toilets?

No, tot uses an unfit adopter to convert a 12 inch rough-in toilet to 14 inch rough-in. But this toto adopter does not work with all models but only be used with toto skirted toilets. However I have given a review of one toto toilet in the list above which converts 12 inch to 14 inch rough-in without a toto unifit adopter.

Can you replace a 14 inch rough in toilet with a 12 inch rough in toilet?

Yes, you can replace a 14 inch rough-in toilet with a 12 inch but it has one problem  which i’m going to inform you that a 2 inch gap will be left between the wall and the tank. The only solution to this problem is to replace a 14 inch rough-in with another 14 inch rough-in toilet.

How to measure the rough-in of a toilet?

The method of measuring the rough-in of the toilets are different depending on their types. Corner and standard toilets have different methods of measuring the rough-in.

To measure the rough-in of the standard toilet take the measuring  tape and measure from the toilet drain to the toilet’s rear finished wall. If you want to measure the rough-in of an already installed toilet then take the center of the drain where the toilet’s bolts are.
An uncertainty of ½ inch is allowed. If you got a measurement of about 14.5 inches or 13.5 then you should convert it to 14 inches.

How To Measure a Toilet / What Size Toilet Should I Buy?

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