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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteThe right 10-inch rough-in toilet is the one that fits the measured distance in your bathroom and meets the manufacturer’s installation requirements. Start by confirming the rough-in—not by choosing a model based on flush volume—then compare bowl shape, height, dimensions, included seat and documented water-use specifications.
What a 10-inch rough-in means—and how to check yours
The rough-in is the distance from the finished wall behind the toilet to the center of the floor drain or closet-bolt locations, as specified by the toilet manufacturer. Measure in the bathroom with the finished wall in place; baseboards or trim can affect the usable clearance. Do not infer the rough-in from the gap behind the existing tank.
- Locate the toilet’s floor bolts or drain centerline and measure to the finished wall behind it. If the toilet is still installed, use the bolt location where accessible; for a clearer measurement, remove the toilet and measure from the flange centerline.
- Compare the measurement with the installation drawing for the exact toilet model. A nominal 10-inch model still needs the specified wall and tank clearance.
- Check the drawing’s other dimensions, including the toilet’s projection into the room and the width needed around it. Ask a qualified installer to verify the measurement if the flange, wall finish or existing installation makes the reference point uncertain.
For its Drake MS776124CEFG.10, TOTO USA says: “To maintain adequate wall gap between the back of the tank and wall, mount the floor flange at a nominal 10” rough-in distance.” That is guidance for this product, not a universal installation rule; use the installation sheet for the toilet you select. TOTO Drake specification and installation sheet.
Documented 10-inch rough-in toilet options
These examples have manufacturer or specification details identifying a 10-inch rough-in. Their stated flush volumes and MaP figures are model-specific specifications or ratings, not independent comparative test results. Confirm the exact SKU and current package contents before ordering.
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- 10" Rough in Toilets for Bathrooms: 10" Rough-in option allows for installation in any bathroom. Standard one piece toilet, with sleek look and top dual flush chrome button. This compact elongated toilet measures just 26.6 inches deep by 15 inches wide and 26 inches high, ensuring plenty of room for comfort in a bathroom space.
- Chair Height Toilet: ADA Compliant. Features 17.3"+ height from floor to seat. comfortable height seating, Ideal for the elderly and individuals with disabilities which makes sitting down and standing up easier.
- Powerful Flushing: Fully-glazed 2" trapway. Such a powerful and water-saving toilet bowl comes from our research and development of innovative toilet plumbing structures
- Easy to Install: Two big opening holes on the side to fix the toilet much easier. Installing a new modern toilet isn't as hard as it sounds. All you need are a few hours and a plumber. Installation video explanations will make the installation process easier
- Superior Quality Seat: This comfortable seat height toilet comes with a soft closing PP seat, which closes quietly and slowly, effectively reducing the noise of going to the toilet at night. The elongated toilet seat is also fixed with screws, making sure your seat will not come loose from the toilet bowl.
| Model | Documented details | Consider if… |
|---|---|---|
| TOTO Drake MS776124CEFG.10 | 10-inch rough-in; 1.28 gallons per flush (4.8 liters per flush); elongated front; universal height; SoftClose seat included; manufacturer-listed EPA WaterSense certification; one-year limited warranty. | You want an elongated bowl, universal height and an included seat. |
| Niagara Original Stealth side-handle round 10-inch model | 10-inch rough-in; 0.8 gallons per flush; round bowl; manufacturer-listed WaterSense and 800 g MaP score; manufacturer says it uses a flapperless system. | A round bowl suits the room and you want to compare its stated 0.8 GPF specification with other models. |
| Mansfield Alto 138-3173 | 10-inch rough-in; 1.28 gallons per flush; elongated front; standard height; listed MaP rating of 800 grams; assembled dimensions 29-3/8 × 19-3/4 × 29-5/8 inches. | You prefer standard height and have checked that the listed dimensions fit. |
| Kohler Highline K-3889-0 | Kohler’s 10-inch collection identifies a two-piece, elongated, chair-height model at 1.28 gallons per flush. | You want this style, and can confirm seat inclusion, warranty, dimensions and availability for the exact SKU. |
| Glacier Bay 10-inch elongated model | The specification revised May 2025 lists 1.28 gallons per flush, a 10-inch rough-in, elongated bowl, 2-inch glazed trapway and limited lifetime warranty. | You have verified the current SKU and which seat and installation components are included. |
Sources: TOTO USA; Niagara Conservation; Mansfield Plumbing; Kohler 10-inch toilets; Glacier Bay specification.
How to choose beyond flush volume
Match bowl shape and height to the room and users
An elongated bowl projects farther into the room than a round bowl, so compare the model’s actual dimensions with the available floor space. Height labels also differ: the documented options include standard, universal and chair-height configurations. Choose based on comfort and the needs of the people using the bathroom, then confirm the precise seat height in the product specifications.
Rank #2
- Dual Flush: The buttons for dual flush allow you to choose between a low 1.1 gpf light flush or a high 1.6 gpf full flush.
- Rough-In: 10" Rough-In
- Standard Elongated Bowl: The elongated bowl provides extra room and comfort.
- Standard Height: Between 15-17 inches, the standard height toilet is designed with ergonomic considerations, offering optimal comfort to users of all ages and body types.
- Durable Non-Porous Scratch Resistant Ceramic: Developed from ceramic, that is scratch-resistant and non-porous, providing a durable and reliable option that can withstand routine use.
Compare water-use claims carefully
The examples above include models listed at 1.28 GPF and Niagara’s model listed at 0.8 GPF. Those figures describe the individual models; they do not establish which toilet performs best in a side-by-side independent test. WaterSense is a certification marker when a manufacturer lists it for that model. A MaP score is a separate performance rating: the Niagara page lists 800 g, and Mansfield lists 800 grams for the Alto. Treat these as distinct kinds of information rather than interchangeable guarantees.
Check what is in the box and what the warranty covers
A toilet listing may not include every component needed to complete the installation. Confirm whether the seat, bolts, wax or other seal, and supply line are included, and whether the seat is compatible if sold separately. For instance, an American Standard Cadet PRO search listing stated “less seat.” Warranty terms also vary: the cited TOTO sheet lists a one-year limited warranty, while the Glacier Bay specification lists a limited lifetime warranty. Read the current warranty terms for the exact product and market before purchase.
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Rank #3
- Dual Flush: The buttons for dual flush allow you to choose between a low 1.1 gpf light flush or a high 1.6 gpf full flush.
- Rough-In: 10" Rough-In
- Round Bowl: A Round shape allows freedom of movement for optimal comfort.
- Standard Height: Between 15-17 inches, the standard height toilet is designed with ergonomic considerations, offering optimal comfort to users of all ages and body types.
- Durable Non-Porous Scratch Resistant Ceramic: Developed from ceramic, that is scratch-resistant and non-porous, providing a durable and reliable option that can withstand routine use.
Verify the exact product before you order
- Match the measured rough-in to the exact model’s installation drawing, and check the tank-to-wall clearance required by that drawing.
- Confirm the full model number or SKU; similar product names can refer to different configurations.
- Check current dimensions, bowl shape, height, flush-volume specification and any published certification or rating on the manufacturer’s product or specification page.
- Verify included parts, seat compatibility, warranty, stock and price with the seller. Product pages and inventory can change.
- Do not assume every search result is available: American Standard’s Edgemere page showed the listed white configuration as discontinued. American Standard Edgemere product page.
Retailer listings can help identify possible options, but a category page is not a substitute for the installation sheet and specification for the selected SKU. Home Depot’s WaterSense 10-inch rough-in toilet category.
Quick Recap
Rank #4
- POWERFUL PERFORMANCE WITH LESS FREQUENT CLEANING - TORNADO FLUSH swirls water in a circular pattern to fully wash the bowl surface. CEFIONTECT is an ultra-smooth glaze that minimizes waste from sticking so that it is easily washed away.
- MORE COMFORT ACROSS A WIDER RANGE OF INDIVIDUALS - TOTO's Universal Height is taller than a standard toilet and makes sitting down and standing up easier for many people. Universal Height models are capable of meeting the ADA height requirement.
- SAVE WATER WITHOUT SACRIFICE - The 1.28 GPF WaterSense certified Drake enables you to save water without worrying about diminished performance. The Drake features a wide 3 inch flush valve and a siphon jet bowl that gets the job done in one flush.
- STYLISH AND MODERN DESIGN - Update your oasis with this stylish design that couples well with any bathroom décor. The elongated bowl provides added space for comfort. The toilet fits into 10 inch rough-in installations and has a left-hand trip lever.
- WASHLET+ COMPATIBILTY FOR WHEN YOU ARE READY TO UPGRADE - This model will include the Drake tank, bowl, and SoftClose seat. Complete your toilet with an optional WASHLET+ bidet seat upgrade. WASHLET+ models enable concealment of the cord and hose.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
