Finding the right toilet for a small bathroom can be a puzzle, especially when you’re working with a specific 10-inch rough-in measurement. This compact configuration is common in many homes, but it often limits your fixture choices. You need a toilet that fits perfectly without sacrificing performance or comfort, turning a challenging space into a functional and efficient part of your home.
Fortunately, leading brands like TOTO, Kohler, and American Standard offer excellent 10-inch rough-in models designed specifically for these tighter spaces. From water-saving high-efficiency toilets to comfortable, elongated bowls, there is a solution for every need. This roundup highlights the best options available to help you make an informed decision for your bathroom upgrade.
The Best 10-Inch Rough-In Toilets for Compact Spaces
- TOTO CST744SF.10#01 Drake Two-Piece Elongated Toilet
- American Standard 270FA101.020 Cadet 3 Two Piece Toilet
- KOHLER 5310-0 Cimarron Comfort Height Skirted Trapway Toilet
- American Standard 2315228.020 Baby Devoro FloWise Toilet
- Toto CST412MF.10No.01 Aquia Dual Flush Toilet
- Kohler KOH3889-0 Highline Comfort Height Toilet
- American Standard 270AB001.020 Cadet 3 Right Height Toilet
- KOHLER 3851-0 Cimarron Comfort Height Round-Front Toilet
- American Standard 2851A104.020 Town Square S One-Piece Toilet
- TOTO Drake Two-Piece Elongated 1.6 GPF Toilet
TOTO CST744SF.10#01 Drake Two-Piece Elongated Toilet

The TOTO Drake is a consistently top-rated toilet known for its reliable performance. It features the powerful G-Max flushing system, which provides a strong, efficient flush with just 1.6 gallons per flush. This ensures that waste is cleared effectively with a single use, reducing the need for double-flushing and saving water over time.
This model is designed with user comfort in mind, offering a Universal Height bowl that is taller than standard toilets. This chair-height design makes sitting down and standing up easier for most adults. The elongated bowl shape provides additional seating room, enhancing the overall comfort for daily use in your small bathroom.
American Standard 270FA101.020 Cadet 3 Two Piece Toilet

The American Standard Cadet 3 is a smart choice for small bathrooms where space is at a premium. It features a compact elongated bowl that provides the comfort of an elongated front while fitting into the space typically required for a round-front toilet. This clever design maximizes comfort without requiring extra floor space.
Built from durable vitreous china, this toilet is made to last. The Cadet Flushing System is engineered for power and efficiency, effectively clearing the bowl with each flush. Its straightforward two-piece design also makes for a relatively simple installation process, which is a benefit for both DIY enthusiasts and professional plumbers.
KOHLER 5310-0 Cimarron Comfort Height Skirted Trapway Toilet

For those who prioritize easy cleaning, the KOHLER Cimarron with a skirted trapway is an excellent option. The smooth, uninterrupted sides of the bowl eliminate the hard-to-reach nooks and crannies found around traditional exposed trapways. This design allows for quick and effortless wiping, helping to keep your bathroom looking pristine.
This model also offers the advantage of Comfort Height, which brings the bowl to a more accessible, chair-level height. The elongated bowl adds to the user’s comfort. Please note that this model is a two-piece toilet and the seat is sold separately, allowing you to select a seat that meets your specific preferences.
American Standard 2315228.020 Baby Devoro FloWise Toilet

The American Standard Baby Devoro FloWise is a high-efficiency toilet that is ideal for conserving water without compromising on performance. It uses only 1.28 gallons per flush, which can lead to significant water savings on your utility bills over the years. This makes it an environmentally conscious and cost-effective choice.
This model features a round front bowl, which is perfectly suited for very small bathrooms or powder rooms where every inch counts. Its compact design allows for easier door clearance and movement within the space. The lower profile and efficient design make it a practical fixture for any compact bathroom layout.
Toto CST412MF.10No.01 Aquia Dual Flush Toilet

The Toto Aquia stands out with its modern dual-flush technology, giving users the power to choose between a 1.6 GPF flush for solid waste or a light 0.9 GPF flush for liquid waste. This flexibility is key to maximizing water conservation, as you use only the amount of water truly needed for each flush.
This toilet combines a sleek, skirted design with Universal Height comfort. The skirted trapway offers a clean, modern appearance and makes cleaning the sides of the toilet much simpler. Its one-piece-like design and efficient flushing system make it a stylish and smart upgrade for a contemporary small bathroom.
Kohler KOH3889-0 Highline Comfort Height Toilet

The Kohler Highline is a dependable two-piece toilet that balances performance with user-friendly features. Its two-piece configuration is often favored for a simpler installation process and easier handling, as the tank and bowl are separate. This can be particularly helpful when navigating tight spaces during installation.
It features an elongated bowl for extra seating comfort and a Comfort Height rim, making it more accessible. As a high-efficiency model, it uses only 1.28 gallons per flush. Kohler supports this toilet with a manufacturer’s warranty, providing peace of mind with your purchase.
American Standard 270AB001.020 Cadet 3 Right Height Toilet

This American Standard Cadet 3 model is built for long-term reliability, backed by an industry-leading warranty. It includes a lifetime warranty on the chinaware, a 5-year warranty on mechanical parts, and a 1-year warranty on the seat (if included). This demonstrates the manufacturer’s confidence in the product’s durability.
It offers chair-height comfort, measuring approximately 17 inches tall for easier sitting and standing. Combined with the elongated bowl, this toilet prioritizes daily comfort. The powerful flushing system ensures consistent performance, making it a solid and trustworthy choice for any household.
KOHLER 3851-0 Cimarron Comfort Height Round-Front Toilet

If your small bathroom has very limited space, the KOHLER Cimarron round-front toilet is an ideal solution. The round bowl design has a smaller footprint than elongated models, making it perfect for powder rooms, small guest baths, or any installation where space conservation is critical.
Despite its compact size, it doesn’t compromise on comfort. It features Kohler’s Comfort Height seating, which brings the rim to a more accessible level compared to standard-height toilets. This model also incorporates the efficient AquaPiston flush technology, which uses only 1.28 GPF and provides a powerful, reliable clean.
American Standard 2851A104.020 Town Square S One-Piece Toilet

The American Standard Town Square S offers a sleek, one-piece design that brings a modern and seamless look to your bathroom. Its streamlined profile is not only aesthetically pleasing but also highly functional, as it eliminates the gap between the tank and bowl where dust and germs can accumulate.
This design makes cleaning noticeably easier and contributes to a cleaner bathroom environment. Inspired by classic American architecture, this toilet coordinates with other pieces in the Town Square S collection if you plan a full bathroom update. It also operates as a high-efficiency toilet, using 1.28 GPF.
TOTO Drake Two-Piece Elongated 1.6 GPF Toilet
Another version of the renowned TOTO Drake, this two-piece elongated toilet delivers the proven performance the series is known for. It utilizes a robust 1.6 GPF flushing system designed to clear waste effectively with a single flush, ensuring reliable operation day after day.
The elongated bowl shape is a key feature, providing additional room and comfort for users. As a two-piece model, it offers installation flexibility that can be advantageous in various bathroom configurations. This toilet is a solid, no-fuss option for anyone seeking a dependable and comfortable 10-inch rough-in toilet from a trusted brand.
Buying Guide: What to Look For in a 10-inch Rough-in Toilet
When you’re dealing with a small bathroom, every inch counts. That’s where a 10-inch rough-in toilet becomes your best friend. The “rough-in” is the distance from the wall to the center of the toilet’s drainpipe. A standard rough-in is 12 inches, but in older homes or tight spaces, you might find a 10-inch measurement. If that’s your situation, you need a toilet specifically designed for it. Trying to squeeze a 12-inch model into a 10-inch space just won’t work, leaving an awkward and hard-to-clean gap.
First, consider the bowl shape. You’ll typically choose between elongated and round-front bowls. An elongated bowl offers more seating comfort and is often preferred by adults. However, a round-front bowl is a space-saving champion, protruding several inches less from the wall. This can be the difference between a cramped feel and a comfortable pathway in a tiny bathroom. For truly tight quarters, the round front is usually the way to go.
Next, think about the flushing system. You want a toilet that performs well with a single flush to avoid wasting water and time. Look for a powerful, fully-glazed trapway (the channel inside the toilet). A wider, fully glazed trapway prevents clogs more effectively. Many modern toilets use a gravity-fed system, which is simple and reliable, while others might use pressure-assisted technology for an even more forceful flush, though these can be louder. For most homes, a well-designed gravity-flush toilet is more than sufficient.
Height is another key factor. Standard toilet heights are around 14.5 to 15 inches from the floor to the top of the seat. Comfort Height or Right Height toilets are taller, usually around 16 to 17 inches. This chair-level height is much easier for most adults to use, especially those with mobility issues or knee pain. It makes sitting down and standing up a less strenuous activity.
Finally, pay attention to the overall size and the toilet’s profile. Some models are designed with a more compact tank or a skirted trapway. A skirted base, where the sides are smooth rather than exposed plumbing, isn’t just for looks; it makes cleaning the floor around the toilet significantly easier. When you’re shopping for the best 10-inch rough-in toilets for small bathrooms, you’re looking for a combination of a space-efficient footprint, a reliable flush, and features that add comfort and ease of maintenance to your daily life.
Frequently Asked Questions
Can I install a 12-inch rough-in toilet in a 10-inch space?
No, you cannot. The rough-in measurement is a fixed distance from the wall to the drain. Installing a 12-inch model in a 10-inch space would force the toilet to sit 2 inches away from the wall, creating a large, awkward gap that is difficult to clean and looks unprofessional. You must match the toilet’s rough-in specification to your bathroom’s plumbing for a correct and secure fit.
Are 10-inch rough-in toilets harder to find?
They are less common than the standard 12-inch models, so you won’t find as many options on the shelf at your local home improvement store. However, most major toilet manufacturers produce 10-inch rough-in versions of their popular models. You will likely have the best selection by shopping online, where retailers can easily stock a wider variety of sizes and styles to meet this specific need.
What is the main advantage of an elongated bowl versus a round one?
The main advantage of an elongated bowl is comfort. The oval shape provides more room and is generally considered more comfortable for seating, especially for adults. The trade-off is that it takes up more space in your bathroom. A round-front bowl saves about 2-3 inches of legroom, which can be a critical gain in a very small bathroom, making it a practical choice over a comfort-focused one.
Is a comfort height toilet worth it?
For most adults, yes, a comfort height toilet is a significant upgrade. The taller height mimics a standard chair, making it much easier to sit down and stand up. This is a major benefit for older individuals, tall people, or anyone with knee or hip problems. It’s one of those small changes that can greatly improve daily comfort and accessibility in your home.
How do I measure my toilet’s rough-in?
To find your rough-in measurement, take a tape measure and place the end against the wall behind your toilet. Measure straight out to the center of the two closet bolts that secure the toilet to the floor. If there is a baseboard, be sure to measure from the wall itself, not from the baseboard. This distance is your rough-in. If it’s close to 10 inches, you should be looking at the best 10-inch rough-in toilets for small bathrooms to ensure a perfect replacement.