Mastering 11 Toilet Rough-In: Your Comprehensive Guide to Measurement, Installation, and Troubleshooting

Are you in the process of remodeling your bathroom or installing a new toilet? If so, understanding the concept of an 11″ toilet rough-in is crucial. A toilet rough-in refers to the distance between the wall and the center of the toilet’s drainpipe.

This measurement is essential when selecting a toilet that will fit properly in your bathroom. In this article, we will explore the specifics of an 11″ toilet rough-in, including how to measure it accurately and finding the right toilet for this particular rough-in size. Whether you’re a DIY enthusiast or a homeowner seeking guidance, this article aims to provide you with the necessary information to tackle your toilet installation project successfully.

So, let’s dive in and discover the world of 11″ toilet rough-in toilets.

Summary in three points

  • Understanding the concept of toilet rough-in dimensions and the importance of accurate measurements.
  • Dealing with an 11″ toilet rough-in by learning how to measure it and finding the right toilet for this rough-in size.
  • Exploring popular 11″ rough-in toilet models, installation tips, common issues, and troubleshooting solutions.

11 toilet rough in

1/10 Understanding Rough-In Dimensions

When installing a toilet, it is essential to carefully measure the rough-in dimension. This measurement determines how the toilet will be placed and aligned with the drain and plumbing system. To avoid any issues and ensure a seamless installation, it is crucial to accurately measure the rough-in.

Each toilet model has its own specific dimensions, so it is important to check the specifications of your chosen toilet. A precise measurement of the rough-in is vital for the stability of the toilet and proper waste disposal. Take the necessary time to comprehend and adhere to the required dimensions to ensure a perfect fit, stability, and optimal performance for your bathroom.

2/10 The Importance of Accurate Measurements

Proper measurements are essential for a successful toilet installation . Incorrect measurements can create a host of problems, from awkward positioning to leaks and instability. To prevent these headaches, be sure to take accurate measurements with a measuring tape before installing your toilet.

This will ensure a secure and hassle-free experience in the long run.

If you’re not sure how to measure your toilet’s rough-in, check out our article “How to Measure Toilet Rough-In” for a step-by-step guide to help you get it right.

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How to Install an 11-Inch Rough-In Toilet: Step-by-Step Guide

  1. Measure the distance from the wall to the center of the sewer pipe to determine the rough-in dimension.
  2. If you have an 11″ rough-in, make sure to find a toilet specifically designed for this dimension.
  3. Check the specifications of the toilet to ensure it is compatible with an 11″ rough-in.
  4. Purchase the toilet and gather all necessary tools and materials for installation.
  5. Turn off the water supply to the toilet and remove the old toilet if necessary.
  6. Position the new toilet over the rough-in and mark the location of the bolt holes on the floor.
  7. Install the wax ring onto the flange, ensuring a proper seal.
  8. Lower the toilet onto the wax ring, aligning the bolt holes with the marks on the floor.

3/10 How to Measure an 11″ Rough-In

Embarking on the journey of a toilet installation, one must tread carefully, adhering to a meticulous path. Let us begin by embracing the measuring tape, a trusty companion in our quest for precision. Its slender body will guide us to the center of the drain, where our starting point lies.

From there, our gaze shall shift towards the finished wall, beckoning us to measure the distance. Lo and behold, a figure of eleven inches shall grace our presence. Yet, dear reader, we mustn’t overlook the baseboard, for it too holds significance in our calculations.

If perchance it stands before us, we shall measure the distance from the center of the drain to its very edge. A simple subtraction of this measurement from our previous finding shall reveal the true essence of the rough-in measurement. Alas, I must impart a morsel of wisdom upon you, my esteemed reader.

An 11″ rough-in, though noble in its existence, pales in comparison to the ubiquitous 12″. Thus, our choices may be limited, but fret not. By employing the art of accurate measurements , we shall bestow upon our toilet a fit and stability befitting its purpose.

Hark! Let the measuring tape be our ally, leading us unwaveringly to the center of the drain. May we never disregard the baseboard, for it holds the key to our calculations.

With these steps as our guide, we shall embark upon a journey of triumph, a successful toilet installation awaiting us at the journey’s end.

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4/10 Finding the Right Toilet for an 11″ Rough-In

As you embark on the quest for the ideal 11″ rough-in toilet, a myriad of crucial factors demand your attention. Begin your odyssey by contemplating the contours and aesthetics that promise utmost comfort. Seek out toilets blessed with the gift of efficient flushing, for in their water-saving embrace lies the key to both efficacy and environmental stewardship.

And lo, do not forget the realm of adjustable heights, a sanctuary of accessibility for all who tread upon its hallowed ground. In the vast realm of porcelain thrones, where comfort, functionality, and accessibility collide, may your quest be fruitful. Go forth, intrepid shopper, and may your journey be flush with triumph!

Did you know that the standard rough-in size for toilets in most homes is 12 inches?


My name is Warren and I am a professional plumber licensed and insured in the State of California. I have been in the business for over 10 years and have undertaken small and large projects including bathroom renovation, toilets, garbage disposals, faucets, sinks and kitchen plumbing jobs. This site is based on my experience with toilets. I have installed the best brands and models in all sizes and shapes. I hope this helps you with the unbiased information that you need to make the right decision. …weiterlesen

5/10 Review of Top Models Suitable for 11″ Rough-In

When selecting a toilet with an 11″ rough-in, there are key factors to consider. Ensure the toilet is compatible with this specific dimension for a proper fit. Look for toilets with efficient flushing systems to save water and money.

Renowned brands like Kohler, American Standard, and Toto offer high-quality 11″ rough-in toilets. These brands are known for their durability, performance, and stylish designs. To make an informed choice, read customer reviews and ratings for the top 11″ rough-in models.

This provides valuable insight into factors like installation ease, flushing power, and overall satisfaction. By considering these features, exploring reputable brands , and taking customer reviews into account, you can confidently select a top-notch model that suits your 11″ rough-in.

6/10 Pros and Cons of 11″ Rough-In Toilets

When it comes to choosing 11″ rough-in toilets, there are a few important factors to keep in mind. On the bright side, these toilets are incredibly user-friendly and guarantee a perfect fit. This means that you can save both time and energy during the installation process.

However, it’s important to note that there are some limitations. Compared to other sizes, the design options for 11″ rough-in toilets are somewhat limited . This means that your choices may be restricted to a certain extent.

Additionally, the narrow space between the toilet and the wall can make it more challenging to access the plumbing components. In conclusion, while 11″ rough-in toilets offer the convenience of easy installation, it’s crucial to consider the limited design options and potential difficulties in accessing the plumbing components. By carefully weighing these pros and cons, you can make an informed decision on whether it’s the right choice for your bathroom.

Are you in the process of installing a toilet? Check out our article on toilet rough plumbing to learn everything you need to know about setting up the plumbing correctly for a smooth installation.

11 toilet rough in

Are you considering buying a new toilet but unsure about the size you need? In this video, you’ll learn how to measure the toilet rough-in and find out what size toilet is best for your bathroom. Don’t miss out on this helpful guide!

YouTube video

7/10 Preparation and Precautions

Before embarking on the installation of a toilet with an 11″ rough-in, it is crucial to follow a set of important steps. Begin by gathering the necessary tools and donning the appropriate protective gear, such as gloves and goggles, to ensure your safety throughout the process. Once adequately equipped, proceed to turn off the water supply to the toilet.

It is imperative to verify that the water is completely shut off before moving forward to avoid any potential leaks or damage. To facilitate the installation, clear the immediate vicinity of the toilet from any obstructions or unnecessary items. This will make the process smoother and more manageable.

By adhering to these precautions and adequately preparing, you can embark on an installation journey that is both seamless and secure. Always prioritize your safety when working with plumbing fixtures, ensuring you wear your gloves and goggles, turn off the water supply, and clear the area beforehand. Now, let the installation commence with utmost confidence!

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Everything You Need to Know About 11-Inch Toilet Rough-In Measurements

  • The rough-in dimension of a toilet refers to the distance between the wall behind the toilet and the center of the toilet flange, which connects the toilet to the sewer pipe.
  • Standard rough-in dimensions for toilets are 12 inches, 10 inches, and 14 inches, but there are also toilets available with an 11-inch rough-in measurement.
  • Accurate measurements are crucial when dealing with a toilet rough-in, as an incorrect measurement can lead to installation issues and leaks.
  • Measuring an 11-inch rough-in involves measuring the distance from the finished wall surface to the center of the flange.
  • Finding the right toilet for an 11-inch rough-in can be challenging, as it is not as common as the standard rough-in sizes. However, there are several models available specifically designed for this measurement.
  • Popular 11-inch rough-in toilet models include the Kohler Wellworth, American Standard Cadet, and TOTO Drake II. These models offer reliable performance and efficient flushing.

8/10 Step-by-Step Installation Guide

Embarking on the task of installing an 11″ rough-in toilet may appear overwhelming at first glance. However, armed with the appropriate tools and a systematic approach, it can be a straightforward endeavor. Allow me to guide you through the process in a concise manner:

1. Gather the necessary tools: – Grab an adjustable wrench. – Make sure you have both a flathead and Phillips screwdriver.

– Acquire either plumber’s putty or a wax ring. – Equip yourself with a caulking gun and silicone caulk. – Don’t forget to bring a level and measuring tape.

2. Achieving proper alignment and leveling: – Measure the rough-in distance and ensure it aligns with the toilet’s specifications. – Position the toilet flange on the floor, ensuring it aligns with the drainpipe. – Use a level to confirm the flange’s alignment and make any necessary adjustments.

3. Connecting the toilet to the water supply: – Apply the wax ring or plumber’s putty to the flange. – Carefully lower the toilet bowl onto the flange, ensuring the bolts align with the mounting holes. – Apply consistent pressure to establish a secure seal with the wax ring or putty.

– Fasten the toilet bowl to the floor by tightening the nuts on the mounting bolts.

4. Verifying for potential leaks: – Attach the water supply line to the toilet’s fill valve, ensuring a tight connection. – Activate the water supply and inspect for any leaks around the connections. – Flush the toilet multiple times to guarantee proper functionality.

Always consult the manufacturer’s instructions for your specific toilet model and seek the assistance of a professional plumber if necessary. Now, revel in the convenience and comfort of your newly installed 11″ rough-in toilet.

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9/10 Troubleshooting Guide

When it comes to 11″ rough-in toilets, homeowners often encounter common issues such as leaks, clogs, and instability. Identifying leaks is fairly straightforward – just look for water pooling around the base of the toilet. To fix this, simply replace the wax ring and securely fasten the toilet to the floor.

Clogs, on the other hand, can cause improper flushing or water backing up. Luckily, a plunger or a plumbing snake should do the trick. Over time, toilets can also become loose or unstable due to wear and tear on the mounting bolts.

Tightening them and ensuring the toilet is level should solve the problem. However, if you’re unsure or the issue persists, it’s always best to consult a professional plumber.

If you’re planning a bathroom renovation and need to know about plumbing rough-in for toilets, check out our article “Plumbing Rough-In for Toilets” for all the information you need to get started.

Comparison of Toilet Brands and Models (Tabelle)

Brand and Model Dimensions (inches) Bowl Shape Flush Type Water Consumption (gallons per flush) Features Warranty Price Range Customer Ratings (out of 5) Pros Cons
Brand A Model X 30″ L x 20″ W x 34″ H Elongated Gravity-fed 1.6 Soft-close seat, water-saving technology 5 years Budget 4.5 Affordable, water-saving Basic design
Brand B Model Y 28″ L x 18″ W x 32″ H Round Pressure-assisted 1.28 Anti-microbial surface, dual-flush 10 years Mid-range 4 Powerful flush, anti-microbial Expensive
Brand C Model Z 32″ L x 22″ W x 36″ H Elongated Dual-flush 0.8/1.6 Water-saving technology, soft-close seat Lifetime High-end 4.8 Stylish design, water-saving Expensive

10/10 When to Call a Plumber

When it comes to plumbing troubles, it’s crucial to enlist the help of a seasoned professional. While minor hiccups can be tackled with a bit of DIY knowledge, there are telltale signs that signify the need for expert assistance. Burst pipes, relentless leaks, or a noticeable lack of water flow call for specialized tools and expertise.

Likewise, complex problems such as sewer line backups, water heater malfunctions, or extensive pipe repairs should be entrusted to the hands of skilled professionals. Attempting to tackle these issues without the necessary knowledge and equipment can result in further damage and exorbitant repair costs. That’s why it’s essential to reach out to a plumber for prompt repairs and regular maintenance.

By scheduling routine maintenance, you can prevent major issues from arising, and plumbers possess the necessary skills to efficiently handle a wide array of problems. With a plumber by your side, you can rest assured that your plumbing system is in capable hands, and any issues will be swiftly and professionally resolved. So, when faced with significant plumbing problems or when DIY solutions fall short, don’t hesitate to call a plumber for optimal results.

11 toilet rough in


In conclusion, understanding the concept of a toilet rough-in and how to deal with an 11″ rough-in can be crucial when it comes to choosing and installing the right toilet for your bathroom. Accurate measurements and finding the right toilet model are essential steps in ensuring a successful installation. This article has provided a comprehensive guide on measuring and finding toilets for an 11″ rough-in, as well as popular models suitable for this measurement.

Additionally, installation tips and troubleshooting guidance have been provided to address common issues that may arise. By following the information and tips provided in this article, readers can confidently tackle their 11″ rough-in toilet installation project. For further assistance and information on related topics, we recommend exploring our other articles on bathroom renovations and plumbing.


Can a toilet rough-in be 11 inches?

The standard size for toilet rough-ins is typically 12 inches. However, it is important not to assume that your rough-in is 12 inches without measuring it first. In certain older homes, you may come across rough-in sizes of 10 inches or 14 inches. Additionally, 10-inch rough-in sizes can be commonly found in powder rooms, half baths, or other small bathrooms as a space-saving measure.

Can you replace a 10-inch rough-in toilet with a 12 inch?

The ideal situation is to have the rough-in measurement of the toilet match the rough-in measurement of your bathroom plumbing. However, it is possible to install a toilet with a 10-inch rough-in into a space that has a 12-inch rough-in.

Do all toilets have a 12 inch rough-in?

Toilets typically have a rough-in measurement of 12 inches, which is the most common size. However, it is worth noting that toilets with a 10- or 14-inch rough-in measurement are not as widely available, so your options may be more limited when choosing a toilet of this size. If you are replacing an existing toilet, it is recommended to find a replacement with the same rough-in measurement to ensure a proper fit.

What is 12 inch rough-in for a toilet?

The term “12-inch rough-in” refers to the measurement between the center of the toilet flange and the finished back wall, indicating the distance required for proper installation. This information is typically provided on the specification sheet of the toilet. It is worth noting that a 12-inch rough-in is the most commonly used size for toilet installations.

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