Best 12 Inch Rough In Toilets in 2026: 15 Picks by Specs
The DeerValley Compact One Piece Toilet leads our list as a compact one-piece model with a dual flush, chosen for its balance of a small footprint and water-saving features. Its standard seat height and 12 inch rough in make it a straightforward fit for most bathrooms. From a pool of 38 listings, we selected 15 toilets that cover the range of designs, from compact round bowls to extra tall elongated models, by comparing the specifications each seller published. We did not physically examine any unit; our comparisons rely on the stated dimensions, flush types, and features.
15 picks from 9 toilets that match this guide with a price we can quote today, made by 26 makers. The prices below are current and each carries its read time.
Quick picks
The best fit for you
- For a small bathroom: If floor space is tight, start with the WinZo Compact One Piece Toilet, which combines a short 22.8 inch depth with a dual flush system. See pick 2
- For tall users and seniors: The Swiss Madison Classe offers an extra tall 21 inch bowl and a low-flow flush, making it a good fit for taller individuals and seniors. See pick 9
- For a smart toilet with a bidet: The Swiss Madison Hugo G combines a chair height bowl, auto flush, and a night light in a smart toilet with a 12 inch rough in. See pick 13
Our 15 picks
1 Best overall compact
DeerValley Compact One Piece Toilet Standard Seat Height for Small
- Pieces
- One-piece
- Flush
- Dual flush
- Gallons per flush
- 1.5 to 1.6 GPF
- Seat height
- Standard height
- Rough-in
- 12 in
- Compact
- Yes
This DeerValley is a compact one-piece toilet with a dual flush of 1.5 to 1.6 GPF, offering a balance of small footprint and water-saving options. Its standard seat height makes it a simple fit for bathrooms used by a mix of adults, without the extra cost of a taller bowl.
Pros
- Compact one-piece body in a small footprint
- Dual flush at 1.5 to 1.6 GPF
- Standard seat height for general use
- 12 inch rough in fits most residential plumbing
Cons
- Flush volume is not as low as 1.28 GPF models
- Height not stated as chair height
Good fit if
- Buyers with a small bathroom who want a one-piece toilet
- Anyone who prefers a standard seat height over an extra tall one
Skip if
- You need a chair height or ADA compliant bowl, which other picks cover
- You want the lowest possible flush volume, since a few picks use less than 1.2 GPF
Verdict: A compact one-piece toilet with a dual flush that covers the essentials for most small bathrooms.
2 Shortest compact bowl
WinZo Compact One Piece Toilet 22.8" Depth Modern Short Design Dual
- Pieces
- One-piece
- Flush
- Dual flush
- Rough-in
- 12 in
- Compact
- Yes
At 22.8 inches of depth, this WinZo is the shortest compact bowl in the picks, which makes it useful for very tight powder rooms. Its dual flush system pairs with that short footprint for a bathroom where every inch counts.
Pros
- 22.8 inch depth, the shortest compact bowl in this list
- Dual flush system
- One-piece design simplifies cleaning
Cons
- Seller does not state a GPF value
- Bowl shape not stated in the listing
Good fit if
- A powder room or tiny bathroom with very little floor space
- Buyers who want a one-piece toilet without a wide footprint
Skip if
- You need a stated GPF to qualify for a rebate, since the seller does not list one
- You prefer an elongated bowl, which is not stated here
Verdict: The shortest bowl in this list, built for bathrooms where depth is the limiting factor.
3 Lowest flush volume compact
DeerValley Compact One Piece Toilet for Small Bathrooms
- Pieces
- One-piece
- Flush
- Dual flush
- Gallons per flush
- 1.2 to 1.4 GPF
- Rough-in
- 12 in
- Compact
- Yes
$188.00 (as of 10/14/2026 22:54 PDT - Details)
This smaller DeerValley uses a dual flush with flush volumes of 0.8 and 1.28 gallons per flush, which is the lowest flush volume of the compact one-piece picks and matches the EPA WaterSense threshold of 1.28 GPF or less. It also includes a soft close seat, something several compact picks do not state.
Pros
- Dual flush at 0.8 and 1.28 GPF, the lowest of the compact picks
- Soft close seat included
- Compact one-piece body
Cons
- Small bowl may not suit larger users
- Only a compact footprint, so not ideal for a full-size bathroom
Good fit if
- Bathrooms where water savings matter
- Anyone who wants a soft close seat without buying it separately
Skip if
- You need a full-size elongated bowl for comfort
- You prefer a chair height or extra tall seat, which is not stated here
Verdict: The compact pick with the lowest stated flush volume and a soft close seat.
4 Best compact with chair height
DeerValley Compact One Piece Toilet
- Pieces
- One-piece
- Flush
- Dual flush
- Gallons per flush
- 1.5 to 1.6 GPF
- Seat height
- Chair height
- Rough-in
- 12 in
- Compact
- Yes
$198.99 (as of 10/14/2026 22:54 PDT - Details)
Among the compact one-piece toilets, this DeerValley is the one that pairs a chair height seat with a dual flush, giving you the easier stand-up of a taller bowl in a small footprint. The other compact picks either list a standard seat height or do not state one.
Pros
- Chair height seat for easier standing
- Dual flush at 1.5 to 1.6 GPF
- Compact one-piece body
Cons
- Flush volume is higher than the 0.8/1.28 GPF DeerValley compact
- Small footprint may limit bowl size
Good fit if
- Small bathrooms that still need a chair height bowl
- Buyers who want a one-piece toilet with a dual flush
Skip if
- You want the lowest flush volume available
- You need an extra tall bowl, which this pick does not offer
Verdict: A good compact choice when you want chair height without a larger footprint.
5 Best compact for a tight corner
HOROW HWMT-8733 Small Compact One Piece Toilet For Bathroom
- Pieces
- One-piece
- Flush
- Dual flush
- Rough-in
- 12 in
- Compact
- Yes
This HOROW compact one-piece offers a dual flush in a small footprint, and its round bowl is one of only two round bowls in the whole pool. A round bowl can save a few inches of clearance in a narrow bathroom compared with elongated designs.
Pros
- Round bowl, one of only two in this list
- Dual flush system
- Compact one-piece body with a 12 inch rough in
Cons
- Round bowl may be less comfortable for some users
- Seller does not state a GPF value
Good fit if
- Narrow bathrooms where a round bowl saves space
- Buyers who want a dual flush one-piece toilet
Skip if
- You prefer the more common elongated bowl
- You need a stated GPF for water efficiency planning
Verdict: A compact round-bowl option for tight layouts.
6 Best round bowl with soft close seat
HOROW HT1000 Dual Flush One Piece Toilet
- Pieces
- One-piece
- Bowl shape
- Round
- Flush
- Dual flush
- Rough-in
- 12 in
- Compact
- Yes
This HOROW is the other round bowl in the pool, and it adds a soft closing seat, quick release mechanism, and dual flush, features that the other compact round bowl does not list. For buyers who want a round one-piece with those conveniences, it is the pick.
Pros
- Round bowl for a compact fit
- Soft closing seat and quick release seat listed
- Dual flush system
Cons
- Round bowl limits the seat length compared with elongated
- Seller does not state a GPF value
Good fit if
- Buyers who want a round one-piece toilet with a soft close seat
- Small bathrooms where a shorter bowl helps
Skip if
- You want an elongated bowl for more seat length
- You need a stated GPF
Verdict: A round one-piece with the conveniences the other compact round pick lacks.
7 Best chair height two-piece
HOROW 17 Inch Comfort Height Toilet
- Pieces
- Two-piece
- Bowl shape
- Elongated
- Flush
- Dual flush
- Gallons per flush
- 1.5 to 1.6 GPF
- Seat height
- Chair height
- Rough-in
- 12 in
This HOROW two-piece is the directly named chair height option in the list, with an elongated bowl and a dual flush. It offers the traditional two-piece layout that some buyers prefer for easier handling and replacement of parts.
Pros
- Chair height seat listed as 17 inches
- Elongated bowl
- Dual flush at 1.5 to 1.6 GPF
Cons
- Flush volume is higher than the low-flow two-piece picks
- Two-piece design has a visible tank seam
Good fit if
- Buyers who want a classic two-piece toilet with a chair height seat
- Anyone who prefers an elongated bowl at chair height
Skip if
- You want a low-flow model under 1.2 GPF
- You prefer the seamless look of a one-piece toilet
Verdict: A solid chair height two-piece with a dual flush.
8 Best from an established brand
Kohler KOH3998-T-0 1.28 GPF Two-Piece Elongated Toilet
- Pieces
- Two-piece
- Bowl shape
- Elongated
- Gallons per flush
- 1.2 to 1.4 GPF
- Rough-in
- 12 in
This Kohler two-piece from the Wellworth collection is the only pick from a major traditional plumbing brand, and it uses a low-flow flush of 1.28 GPF. Its elongated bowl and standard height make it a straightforward replacement for a standard toilet.
Pros
- Low-flow flush at 1.28 GPF
- Elongated bowl
- Two-piece design from the Wellworth collection
Cons
- No chair height or extra tall option
- No dual flush; single flush only
Good fit if
- Buyers who want a toilet from an established plumbing brand
- Anyone who wants a simple 1.28 GPF low-flow toilet
Skip if
- You need a chair height bowl
- You want a dual flush system
Verdict: A reliable low-flow two-piece from a major brand.
9 Best extra tall with low flow
Swiss Madison Classe Extra Tall Two-Piece 12" Rough-in 1.28 GPF
- Pieces
- Two-piece
- Bowl shape
- Elongated
- Gallons per flush
- 1.2 to 1.4 GPF
- Seat height
- Extra tall
- Rough-in
- 12 in
The Swiss Madison Classe combines an extra tall bowl at 21 inches with a low-flow flush of 1.28 GPF, a pairing that few of the extra tall picks offer. Most extra tall toilets in the pool use 1.5 to 1.6 GPF, so this one stands out for water savings.
Pros
- Extra tall 21 inch bowl height
- Low-flow flush at 1.28 GPF
- Elongated two-piece design
Cons
- 21 inch height may be too tall for shorter users
- Two-piece design
Good fit if
- Tall adults and seniors who need a higher seat
- Buyers who want water efficiency in an extra tall toilet
Skip if
- You prefer a standard seat height
- You want a one-piece toilet
Verdict: The extra tall pick with the best stated water efficiency.
10 Best low-flow one-piece
LOS FLEXI Non Electric One Piece Toilet
- Pieces
- One-piece
- Bowl shape
- Elongated
- Gallons per flush
- Under 1.2 GPF
- Seat height
- Chair height
- Rough-in
- 12 in
This Los Flexi tankless one-piece is one of only two picks in the pool with a flush volume under 1.2 GPF, making it the most efficient one-piece option here. It also lists a 17.3 inch chair height and an elongated bowl.
Pros
- Flush volume under 1.2 GPF, the lowest in this list
- 17.3 inch chair height with an elongated bowl
- One-piece tankless design
Cons
- Tankless design may be unusual for some buyers
- No dual flush option
Good fit if
- Buyers who want the lowest flush volume
- Anyone who prefers a one-piece tankless design
Skip if
- You want a dual flush
- You prefer a conventional tank toilet
Verdict: The most efficient one-piece in this list.
11 Best pressure assisted
Pressure Assisted Toilet with 18.8" Comfort Tall Height
- Pieces
- Two-piece
- Bowl shape
- Elongated
- Gallons per flush
- Under 1.2 GPF
- Seat height
- Chair height
- Rough-in
- 12 in
This Los Flexi is the only pressure assisted toilet in the pool, which makes it a distinct choice for anyone who wants a forceful flush without relying on a larger flush volume. It combines that with an 18.8 inch comfort height and an elongated bowl.
Pros
- Only pressure assisted toilet in this list
- Flush volume under 1.2 GPF
- 18.8 inch comfort height with an elongated bowl
Cons
- Pressure assisted systems can be louder than gravity models
- Only one finish option stated by the seller
Good fit if
- Buyers who want maximum flush power in a low-flow toilet
- Anyone who values an 18.8 inch comfort height
Skip if
- You prefer a quiet gravity flush
- You want a one-piece toilet
Verdict: A pressure assisted option for those who want a forceful flush with low water use.
12 Best style statement
Satin Gold Tone Toilet
- Pieces
- One-piece
- Bowl shape
- Elongated
- Flush
- Dual flush
- Gallons per flush
- 1.2 to 1.4 GPF
- Seat height
- Chair height
- Rough-in
- 12 in
This Los Flexi is the only pick with a satin gold tone finish, and it pairs that with a chair height one-piece body, an elongated bowl, and a dual flush. For buyers who want a toilet that is also a design accent, it is the clear choice.
Pros
- Satin gold tone finish, unique in this list
- Chair height one-piece with an elongated bowl
- Dual flush at 1.2 to 1.4 GPF
Cons
- Bold finish may not match all bathrooms
- Only one color option
Good fit if
- Buyers who want a statement fixture
- Anyone who wants a chair height dual flush one-piece
Skip if
- You want a standard white toilet
- You prefer a low-flow model under 1.2 GPF
Verdict: A stylish chair height one-piece for those who want their toilet to stand out.
13 Best smart toilet
Swiss Madison Hugo G Smart Toilet 12" Rough-in ADA Height in Glossy
- Seat height
- Chair height
- Rough-in
- 12 in
- Bidet built in or included
- Yes
The Swiss Madison Hugo G is the most feature-rich smart toilet in the pool, with an integrated tank, auto flush, and a night light, all at a chair height with a 12 inch rough in. It is one of four smart toilets in the pool, and the only one with those three features listed.
Pros
- Smart features: auto flush and night light
- Chair height with an integrated tank
- 12 inch rough in
Cons
- Higher price point than the standard picks
- Seller does not state a GPF value
Good fit if
- Buyers who want a smart toilet with automated features
- Anyone who wants a chair height toilet with a sleek integrated design
Skip if
- You want a simple gravity flush toilet
- You need a stated GPF for rebates
Verdict: The most feature-rich smart toilet in this list.
14 Best compact with soft close seat
This Jastoeny compact one-piece lists a soft close seat, which is one of only three compact picks in the pool to do so. Its 12 inch rough in and compact body make it a simple choice for a small bathroom where seat comfort matters.
Pros
- Soft close seat listed
- Compact one-piece body
- 12 inch rough in
Cons
- Seller does not state a GPF value
- No dual flush; flush type not stated
Good fit if
- Buyers who want a soft close seat in a compact one-piece
- Small bathrooms with a 12 inch rough in
Skip if
- You need a dual flush
- You need a stated GPF
Verdict: A compact one-piece with a soft close seat for small bathrooms.
15 Best extra tall dual flush
HOROW 19" Extra Tall Toilet for Seniors & Tall Adults
- Pieces
- Two-piece
- Bowl shape
- Elongated
- Flush
- Dual flush
- Gallons per flush
- 1.5 to 1.6 GPF
- Seat height
- Extra tall
- Rough-in
- 12 in
This HOROW offers an extra tall 19 inch bowl with a dual flush at 1.5 to 1.6 GPF, providing a higher seat height that benefits seniors and tall adults. Its two-piece design and 12 inch rough in make it a practical replacement for an existing toilet.
Pros
- Extra tall 19 inch bowl height
- Dual flush at 1.5 to 1.6 GPF
- Elongated two-piece design
Cons
- Flush volume is higher than the low-flow extra tall pick
- Two-piece design has a visible tank seam
Good fit if
- Seniors and tall adults who need a higher seat
- Buyers who prefer a dual flush in an extra tall model
Skip if
- You prefer a standard seat height
- You want a low-flow model under 1.2 GPF
Verdict: A dual flush extra tall toilet that balances height with water-saving options.
Specifications side by side
| # | Toilet | Pieces | Bowl shape | Flush | Gallons per flush | Seat height | Rough-in |
|---|---|---|---|---|---|---|---|
| 1 | DeerValley Compact One Piece Toilet Standard Seat Height for Small | One-piece | not stated | Dual flush | 1.5 to 1.6 GPF | Standard height | 12 in |
| 2 | WinZo Compact One Piece Toilet 22.8" Depth Modern Short Design Dual | One-piece | not stated | Dual flush | not stated | not stated | 12 in |
| 3 | DeerValley Compact One Piece Toilet for Small Bathrooms | One-piece | not stated | Dual flush | 1.2 to 1.4 GPF | not stated | 12 in |
| 4 | DeerValley Compact One Piece Toilet | One-piece | not stated | Dual flush | 1.5 to 1.6 GPF | Chair height | 12 in |
| 5 | HOROW HWMT-8733 Small Compact One Piece Toilet For Bathroom | One-piece | not stated | Dual flush | not stated | not stated | 12 in |
| 6 | HOROW HT1000 Dual Flush One Piece Toilet | One-piece | Round | Dual flush | not stated | not stated | 12 in |
| 7 | HOROW 17 Inch Comfort Height Toilet | Two-piece | Elongated | Dual flush | 1.5 to 1.6 GPF | Chair height | 12 in |
| 8 | Kohler KOH3998-T-0 1.28 GPF Two-Piece Elongated Toilet | Two-piece | Elongated | not stated | 1.2 to 1.4 GPF | not stated | 12 in |
| 9 | Swiss Madison Classe Extra Tall Two-Piece 12" Rough-in 1.28 GPF | Two-piece | Elongated | not stated | 1.2 to 1.4 GPF | Extra tall | 12 in |
| 10 | LOS FLEXI Non Electric One Piece Toilet | One-piece | Elongated | not stated | Under 1.2 GPF | Chair height | 12 in |
| 11 | Pressure Assisted Toilet with 18.8" Comfort Tall Height | Two-piece | Elongated | not stated | Under 1.2 GPF | Chair height | 12 in |
| 12 | Satin Gold Tone Toilet | One-piece | Elongated | Dual flush | 1.2 to 1.4 GPF | Chair height | 12 in |
| 13 | Swiss Madison Hugo G Smart Toilet 12" Rough-in ADA Height in Glossy | not stated | not stated | not stated | not stated | Chair height | 12 in |
| 14 | Jastoeny Compact One-Piece Toilet | One-piece | not stated | not stated | not stated | not stated | 12 in |
| 15 | HOROW 19" Extra Tall Toilet for Seniors & Tall Adults | Two-piece | Elongated | Dual flush | 1.5 to 1.6 GPF | Extra tall | 12 in |
How the picks were chosen
To build this guide we started with a pool of 38 listings for toilets with a 12 inch rough in. From that pool we selected 15 picks that cover the main ways buyers choose a toilet: one-piece and two-piece designs, compact and standard footprints, elongated bowls, chair height and extra tall bowls, low-flow models, dual flush systems, and smart toilets. We kept the pool to new units from established brands and set aside listings that were very close duplicates of one another. Every specification we cite comes from the seller's listing. We did not test any unit. Prices shown on this page are read live from the store listing, so they may change after the page loads; we do not quote them in the text for that reason.
Picking the right one for you
Measure your rough in first
The rough in is the distance from the finished wall behind the toilet to the center of the floor flange. A 12 inch rough in is the most common residential size, but do not assume it until you measure. If your measurement is not exactly 12 inches, you may need a different size or an offset flange. This list only covers toilets with a stated 12 inch rough in.
Pick a flush type that matches your water goals
Toilets in this list use single flush, dual flush, or pressure assisted systems. Dual flush toilets offer a reduced flush for liquid waste and a full flush for solid waste, which can save water if you use the reduced mode. The EPA WaterSense program labels toilets that use 1.28 gallons per flush or less, and its website notes that this is 20 percent less than the federal standard of 1.6 gallons per flush. If water savings are a priority, look for a model whose stated GPF is at or below 1.28. Several picks in this list, including the Los Flexi tankless and the pressure assisted model, are rated under 1.2 GPF.
Choose a bowl height for comfort
Bowl height affects how easy it is to sit and stand. Standard height bowls are typically around 15 to 16 inches, chair height bowls around 17 to 19 inches, and extra tall bowls around 19 to 21 inches. The Americans with Disabilities Act standards reference a seat height for accessible design, and several picks in this list are marketed as ADA compliant or chair height. If you are tall, have mobility concerns, or are buying for seniors, a chair height or extra tall bowl is usually the better fit. If the height is not stated in the listing, do not assume it.
Decide between one-piece and two-piece
One-piece toilets have a seamless body that connects the tank and bowl, which some buyers find easier to clean. Two-piece toilets have a separate tank bolted to the bowl, which can be easier to handle during installation and offers more variety in bowl styles. In this list, one-piece models tend to be compact designs, while two-piece models include the low-flow Kohler and the extra tall Swiss Madison. Your choice is mostly about maintenance and look, since both types can be reliable.
Consider the bowl shape and footprint
Elongated bowls provide more seat length and are the most common shape in this list. Round bowls take up less depth, which can matter in a small bathroom; two picks in this list use a round bowl, both from HOROW. If you are replacing an existing toilet, measure the space in front of the bowl to make sure an elongated model will fit. Compact models, like the WinZo at 22.8 inches deep, are designed for tight spaces.
Look at extra features
Some toilets include features that go beyond the basic flush: soft close seats, quick release seats for easy cleaning, tankless designs, smart functions like auto flush and night lights, and built in bidet functions. Smart toilets in this list, such as the Swiss Madison Hugo G and the WinZo smart model, add electronics and require a power source, which may affect installation. Decide which features matter to you before you compare, because they can change the price and the installation requirements.
Questions
What does a 12 inch rough in mean?
A 12 inch rough in measures the distance from the finished wall behind the toilet to the center of the floor drain flange. It is the most common rough in size for residential toilets in the United States. To confirm your toilet will fit, measure from the wall to the center of the bolts on the floor flange. If that distance is close to 12 inches, a toilet with a 12 inch rough in is the right fit.
What is a good GPF for a toilet?
According to the EPA, WaterSense labeled toilets use 1.28 gallons per flush or less, which is 20 percent less than the federal standard of 1.6 gallons per flush. Several toilets in this list are specified at 1.28 GPF, and a few, such as the Los Flexi tankless and the pressure assisted model, are specified under 1.2 GPF.
Are chair height toilets better for seniors?
Chair height toilets, with a bowl height around 17 to 19 inches, are often easier for seniors and people with mobility issues to sit down on and stand up from, because the higher seat reduces the distance you need to lower and raise yourself. The ADA standards include a referenced seat height for accessible design, and several toilets in this list are marketed as ADA compliant or chair height. An extra tall toilet, like the HOROW 19 inch or Swiss Madison 21 inch, adds even more height.
What is the difference between a one-piece and a two-piece toilet?
A one-piece toilet has a seamless body that combines the tank and bowl, which makes the outside surface easier to wipe down and can look more modern. A two-piece toilet has a separate tank mounted on the bowl, which is a traditional design and can be easier to carry and install in pieces. Both types are available with 12 inch rough ins in this list. Your choice is mainly about cleaning preference and installation logistics.
Do I need a special toilet for a small bathroom?
If your bathroom is short on floor space, look for a compact toilet with a shorter depth. The compact picks in this list, such as the DeerValley and WinZo models, are designed for small bathrooms, and the WinZo has the shortest bowl at 22.8 inches deep. A round bowl, like the HOROW HT1000, also saves a few inches of depth compared with an elongated bowl. Measure the available space before you choose.
Revision notes
- : First published.