15 Best One Piece Toilets, Compared
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Choosing the best one piece toilets requires looking at published specifications rather than marketing claims. We compared 15 models to help you find the right fit. The HOROW T0338W leads because its 17.3-inch ADA seat height and 26.6-inch length serve small bathrooms effectively. All picks rely on data from the listings, including rough-in size, flush type, and dimensions. Use this guide to decide which toilet matches your space and accessibility needs.
Our top pick: HOROW T0338W ADA Height One-Piece Toilet.
Quick picks
The best fit for you
- You need ADA height in a small bathroom HOROW T0338W ADA Height One-Piece Toilet It has a 17.3-inch seat height and a 26.6-inch length.
- You want the most compact model on the list DeerValley DV-1F52807 Compact Elongated Toilet Its 23.5-inch length is the shortest profile available.
- You need bidet comfort with a heated seat Erdoru OPT09 Smart One Piece Toilet It includes a heated seat, bidet, and remote control.
- You want a round bowl for tight spaces BAYROLL Round One-Piece Toilet It features a round bowl shape and dual flush.
Our 15 picks
HOROW T0338W ADA Height One-Piece Toilet
Best for: small bathrooms needing ADA chair height
- Design
- One Piece (what this guide is about)
- Flush Type
- Dual flush
- Flush Volume
- 1.1/1.6 GPF
- Rough-In Size
- 12"
- Seat Height
- 17.3"
- Bowl Shape
- Elongated
This compact one-piece toilet measures 26.6 inches deep by 15 inches wide and 26 inches high. You get an elongated bowl paired with a 17.3-inch chair-height seat, meeting ADA standards for easier sitting. Its dual-flush siphon system uses 1.1 or 1.6 gallons per flush. It suits you if you need accessible seating in a smaller bathroom footprint.
Pros
- ADA-compliant 17.3-inch seat height
- Dual-flush system using 1.1 or 1.6 GPF
- Compact 26.6-inch depth fits tight layouts
- Includes a soft-closing elongated PP seat
Cons
- Coverage is limited to a 1-year warranty
- Total weight reaches 99.2 pounds
Good fit if
- You need a chair-height 17.3-inch seat for easier accessibility.
- You have limited floor space requiring a compact 26.6-inch depth.
- You want dual-flush options of 1.1 and 1.6 GPF to manage water consumption.
Skip if
- You prefer a single-flush unit restricted to 1.28 GPF or lower.
- You require a manufacturer warranty longer than one year.
Verdict: HOROW Compact Elongated One-Piece Toilet provides a 17.3-inch ADA seat height and dual-flush capability for homeowners outfitting space-restricted bathrooms. Its 26.6-inch profile directly serves spaces where standard elongated fixtures extend too far.
DeerValley Compact One-Piece Toilet
Best for: small bathrooms with standard height needs
- Design
- One Piece (what this guide is about)
- Flush Type
- dual flush
- Flush Volume
- 1.1/1.6 GPF
- Rough-In Size
- 10"
- Bowl Shape
- round
- Toilet Type
- one-piece
This DeerValley one-piece toilet features a compact 24.5-inch length and 13.875-inch width, designed for small bathrooms. It offers a dual flush system with 1.1/1.6 GPF ratings to reduce water usage. The unit includes a fully skirted design for easier cleaning and a soft-close seat. It is built for standard height users and fits a 10-inch rough-in space.
Pros
- Compact 24.5-inch length and 13.875-inch width saves space
- Dual flush system saves up to 16,500 gallons annually
- Fully skirted design eliminates crevices for easy cleaning
- Soft-close seat operates at 28dB for quiet use
Cons
- Standard seat height may be difficult for some users
- Round bowl shape is less common than elongated designs
- Limited to 10-inch rough-in size for this model
Good fit if
- You have a small bathroom with tight space constraints
- You prefer a standard seat height for your users
- You want a dual flush system to conserve water
Skip if
- You need an ADA-compliant chair height seat
- Your bathroom requires a 12-inch rough-in size
- You prefer an elongated bowl shape for comfort
Verdict: DeerValley Compact One-Piece Toilet is a space-saving solution for small bathrooms that prioritizes water efficiency and easy maintenance. It fits users who need a standard height and a compact footprint.
Casta Diva Air-Pressure ADA One-Piece
Best for: ADA-compliant bathrooms needing hands-free flushing
- Design
- One Piece (what this guide is about)
- Flush Type
- Air-pressure assisted
- Flush Volume
- 1.0 GPF
- Rough-In Size
- 12"
- Seat Height
- 17.2"
- Bowl Shape
- Elongated
This one-piece toilet uses an air-pressure-assisted flush system to clear waste with just 1.0 GPF. It features an elongated bowl and a 17.2-inch ADA-compliant seat height for easier access. The unit includes a foot-kick or side-button flush for hands-free operation. It does not require electricity to function. The design includes a skirted base and a quiet-close seat.
Pros
- Air-pressure-assisted flush delivers a MaP score of 1000g
- 1.0 GPF water usage meets EPA WaterSense criteria
- 17.2-inch seat height complies with ADA standards
- Hands-free flush via foot-kick or side-button
- Skirted base and elongated bowl for easy cleaning
Cons
- Air-pressure mechanism may produce a louder flush sound
- No built-in bidet or heating functions included
- Single flush volume with no dual-flush option
Good fit if
- You need ADA-compliant height for accessibility
- You want a powerful flush without using electricity
- You prefer hands-free operation for hygiene
Skip if
- You require a dual-flush system for water savings
- You need a quiet flush for shared bathrooms
- You want a built-in bidet or smart features
Verdict: Casta Diva Air-Pressure One Piece Toilet offers strong flushing power and accessible height without needing power. It suits those who prioritize hands-free use and ADA compliance over quiet operation or bidet features.
Swiss Madison St. Tropez One-Piece Toilet
Best for: ADA-compliant, water-efficient standard bathrooms
- Design
- One Piece (what this guide is about)
- Flush Type
- dual flush
- Flush Volume
- 1.1/1.6 GPF
- Rough-In Size
- 12"
- Bowl Shape
- elongated
- Toilet Type
- one-piece
The Swiss Madison St. Tropez is a one-piece toilet with an elongated bowl and ADA-compliant 17.3-inch seat height. It uses a dual vortex flush system that saves water with 1.1 gallons per flush for solids and 1.6 gallons for liquids. The glossy white ceramic is scratch-resistant and non-porous. It fits standard 12-inch rough-ins. This model suits you if you want a comfortable, water-efficient upgrade for your bathroom.
Pros
- ADA chair height seat at 17.3 inches
- Dual vortex flush saves water with 1.1/1.6 GPF
- Elongated bowl provides extra room and comfort
- Scratch-resistant, non-porous ceramic construction
Cons
- Heavy at 109 pounds
- Standard 15.2-inch width may not fit very tight spaces
- No smart features or bidet functions included
Good fit if
- You need ADA-compliant seating height for easier access
- You want a water-efficient dual flush system
- You prefer a durable, scratch-resistant ceramic finish
Skip if
- You require a compact or small-space toilet design
- You want a smart toilet with bidet features
- You have a non-standard rough-in size like 10 or 14 inches
Verdict: Swiss Madison St. Tropez One-Piece Toilet offers a reliable, water-saving flush and comfortable ADA height. It is a practical choice for standard bathrooms where durability and accessibility matter most.
Casta Diva Elongated One-Piece Toilet
Best for: ADA height needs and water conservation
- Design
- One Piece (what this guide is about)
- Flush Type
- dual flush, siphon jet
- Flush Volume
- 1.0/1.28 GPF
- Rough-In Size
- 12"
- Seat Height
- 17.5"
- Bowl Shape
- elongated
This Casta Diva one-piece toilet features an elongated bowl and a 17.5-inch ADA-compliant seat height. It uses a dual-flush system rated at 1.0 GPF for liquids and 1.28 GPF for solids. The unit achieves a MAP score of 1000g for effective waste removal. Its fully skirted design hides trapways for easier cleaning. This model suits users who need a taller seat and water-efficient flushing performance.
Pros
- 17.5-inch ADA-compliant seat height for easier sitting and standing
- Dual-flush system saves water with 1.0/1.28 GPF options
- MAP flush score of 1000g ensures strong waste removal
- Fully skirted one-piece design simplifies cleaning
Cons
- Narrow 14.6-inch width may not suit all small bathrooms
- Includes only a 1-year limited warranty
- Soft-close seat is not included with the toilet
Good fit if
- You need an ADA-compliant seat height for accessibility
- You want a water-efficient dual-flush toilet
- You prefer a fully skirted design for easy cleaning
Skip if
- You require a standard 15-inch or 12-inch rough-in size
- You prefer a round bowl shape over an elongated one
- You need a toilet with a longer warranty period
Verdict: Casta Diva 17.5" ADA One-Piece Toilet offers a tall seat and strong flush for users prioritizing accessibility and water savings. It fits well in bathrooms where a skirted design and ADA height are essential requirements.
Casta Diva Elongated One-Piece Toilet
Best for: ADA-compliant bathrooms seeking water efficiency
- Design
- One Piece (what this guide is about)
- Flush Type
- Dual flush
- Flush Volume
- 1.1/1.6 GPF
- Rough-In Size
- 12"
- Seat Height
- 17"
- Bowl Shape
- Elongated
This Casta Diva one-piece toilet features an elongated bowl and a 17-inch ADA-compliant seat height. It uses a dual-flush system with 1.1 GPF and 1.6 GPF options to save water. The unit includes a powerful siphon jet with a MaP score of 1000g for effective waste removal. It also comes with a soft-close seat and a fully glazed trapway for easy cleaning. This design suits users seeking comfort and water efficiency.
Pros
- 17-inch ADA-compliant seat height for easier sitting and standing
- Dual-flush system offers 1.1 GPF and 1.6 GPF options
- MaP flush score of 1000g indicates strong siphon performance
- Soft-close seat prevents slamming and reduces noise
- Fully glazed trapway aids in cleaning and prevents clogs
Cons
- Standard 12-inch rough-in size limits fit for non-standard plumbing
- No smart bidet or heating features included in this model
- Single flush valve mechanism may be less precise than dual-button systems
Good fit if
- You need an ADA-compliant seat height for accessibility
- You want a water-efficient dual-flush system
- You prefer a seamless, easy-to-clean one-piece design
Skip if
- You require a smart toilet with built-in bidet functions
- You have a non-standard rough-in size like 10 or 14 inches
- You prefer a compact round bowl over an elongated shape
Verdict: Casta Diva 17" ADA One Piece Toilet provides a reliable, accessible option for those prioritizing water conservation and easy maintenance. It fits well in standard bathrooms where ADA height is a necessity rather than a luxury.
DeerValley DV-1F0437 Elongated One-Piece
Best for: ADA-compliant bathrooms seeking high flush power
- Design
- One Piece (what this guide is about)
- Flush Type
- dual flush
- Flush Volume
- 1.1/1.28 GPF
- Rough-In Size
- 12"
- Seat Height
- 17 1/2"
- Bowl Shape
- elongated
This DeerValley one-piece toilet features an elongated bowl and ADA-compliant seat height of 17 1/2 inches. It uses a dual-flush system rated at 1 or 1.28 GPF. The unit achieves a 1000g MaP flush score for effective waste removal. Its rimless design and soft-close seat add practical convenience. The compact footprint fits standard 12-inch rough-in spaces.
Pros
- ADA-compliant 17 1/2-inch seat height
- 1000g MaP flush score
- Dual-flush system at 1 or 1.28 GPF
- Rimless bowl design for easier cleaning
- Soft-close, quick-release seat included
Cons
- Heavier build at 94.8 pounds
- Standard 12-inch rough-in requirement
- No smart features or bidet functions
Good fit if
- You need ADA-compliant seating height
- You want a rimless bowl for easier cleaning
- You prefer a dual-flush water-saving system
Skip if
- You require a compact or wall-hung design
- You need a smart toilet with bidet functions
- You have a non-standard rough-in size
Verdict: DeerValley DV-1F0437 One-Piece Toilet is a solid option for users who prioritize ADA height and high flush performance. It suits those who want a traditional, easy-to-clean design without smart features.
Erdoru OPT09 Smart One Piece Toilet
Best for: Night light and bidet comfort
- Design
- One Piece (what this guide is about)
- Flush Type
- 360° swirling flush
- Flush Volume
- 1.28 GPF
- MaP Flush Score
- 1000g
- Included Components
- Bidet
- Heated Seat
- Heated Seat
This Erdoru one-piece toilet combines a 1.28 GPF flush with a 1000g MaP score for reliable performance. It includes a built-in bidet, heated seat, and foam shield. The standout feature is the 256-color LED strip and night light, making it ideal for low-light bathrooms. It measures 27.6 inches long and 18.5 inches high. You get auto-flush, remote control, and manual backup options.
Pros
- 256-color LED strip and night light for visibility
- 1000g MaP flush score with 1.28 GPF water usage
- Built-in bidet with heated seat and foam shield
- Remote control and multiple flush activation methods
Cons
- 27.6-inch length may not fit small bathrooms
- 18.5-inch height exceeds standard ADA 17.3-inch limit
- Smart features require continuous power supply
Good fit if
- You want a night light for safe bathroom navigation
- You need a bidet with heated seat and foam shield
- You prefer a one-piece design with remote control
Skip if
- You require a strict ADA-compliant 17.3-inch seat height
- You have a very small bathroom under 27 inches deep
- You prefer a standard toilet without electronic features
Verdict: Erdoru OPT09 Smart One Piece Toilet is best for users who prioritize bathroom lighting and bidet comfort over strict ADA height compliance. Its 1000g MaP score ensures effective flushing, while the LED strip adds practical value for night use.
WITMYA Breeze Max-W Smart One-Piece Toilet
Best for: ADA height and remote control needs
- Design
- One Piece (what this guide is about)
- Flush Volume
- 1.28 GPF
- Seat Height
- 17.71 inches
- Toilet Type
- One-piece
- Design Style
- Modern
- Included Components
- Bidet
The WITMYA Breeze Max-W is a one-piece smart toilet with ADA-compliant 17.7-inch height. It features a tankless power flush system that uses 1.28 gallons per flush. You get a wireless remote control, heated seat, and foam shield technology. The unit includes bidet functions and voice control. It weighs 90 pounds and measures 26.8 inches long. This model suits users seeking advanced hygiene features in a compact footprint.
Pros
- ADA-compliant 17.7-inch seat height
- Wireless remote control for operation
- Foam Shield technology for hygiene
- Heated seat with adjustable temperature
- 1.28 GPF efficient flushing system
Cons
- Heavy 90-pound build requires sturdy installation
- Tankless design relies on external power
- Complex features may require learning time
Good fit if
- You need ADA-compliant seating height
- You want remote control convenience
- You prefer tankless space-saving designs
Skip if
- You prefer traditional gravity-flush toilets
- You want a lighter, simpler unit
- You lack nearby electrical outlets
Verdict: WITMYA Breeze Max-W Smart One-Piece Toilet delivers advanced bidet features and ADA height for users who prioritize hygiene and accessibility in a modern bathroom setup.
DeerValley DV-1F026 10-Inch Rough-In
Best for: Standard height users with 10-inch rough-in
- Design
- One Piece (what this guide is about)
- Flush Type
- Dual flush
- Flush Volume
- 1.1/1.6 GPF
- Rough-In Size
- 10"
- Seat Height
- 16 7/8"
- Bowl Shape
- Elongated
The DeerValley DV-1F026 is an elongated one-piece toilet with a 1.1/1.6 GPF dual flush system. It features a 2-inch tramway and an 800G MaP flush score for effective waste removal. The seat height is 16 7/8 inches, which is standard rather than ADA compliant. It fits 10-inch rough-in installations. This model suits you if you want a sleek design with water-saving options and strong flushing power.
Pros
- Dual flush volumes of 1.1 and 1.6 GPF
- 800G MaP flush score for reliable performance
- Fully glazed 2-inch tramway for easy cleaning
- Elongated bowl shape for added comfort
Cons
- Seat height is 16 7/8 inches, below ADA standards
- Limited to 10-inch rough-in size only
- Heavier build at 99 pounds
Good fit if
- You need a toilet for a 10-inch rough-in bathroom
- You prefer a standard seat height under 17 inches
- You want a dual flush system to conserve water
Skip if
- You require ADA-compliant seating height of 17 inches or more
- Your bathroom has a 12-inch rough-in measurement
- You need a compact toilet under 28 inches in length
Verdict: DeerValley DV-1F026 Dual Flush One Piece offers strong flushing power and water efficiency for standard-height users. It is a solid choice for 10-inch rough-in bathrooms where ADA height is not required.
American Standard Champion 4 One-Piece
Best for: reliable flushing and easy cleaning
- Design
- One Piece (what this guide is about)
- Seat Height
- standard height
- Bowl Shape
- elongated
- Toilet Type
- one-piece
- Color
- White
- Dimensions
- 17.8 × 29.8 × 28.5 inches
The American Standard Champion 4 is a one-piece toilet with an elongated bowl and standard seat height. It features a 4-inch flush valve and a fully glazed 2-3/8-inch trapway for strong flushing. The EverClean surface resists bacteria, and the slow-close seat prevents slamming. This model weighs 109 pounds and measures 29.8 inches wide. It suits users who prioritize reliable performance and easy maintenance over comfort height.
Pros
- 4-inch non-adjustable piston action flush valve
- 2-3/8-inch fully glazed trapway for clog resistance
- EverClean surface inhibits bacterial growth
- Slow-close toilet seat included
Cons
- Standard seat height is lower than ADA-compliant models
- Single flush design lacks water-saving dual-flush options
- Heavier build at 109 pounds complicates installation
Good fit if
- You need a reliable, clog-resistant toilet for high-traffic bathrooms
- You prefer the classic look of a standard height seat
- You want a one-piece design that is easy to wipe clean
Skip if
- You require ADA-compliant chair height for accessibility
- You want to reduce water usage with a dual-flush system
- You are installing in a tight space and need a lighter unit
Verdict: The American Standard Champion 4 One-Piece Toilet delivers industry-leading flush power with its large valve and glazed trapway. It is an ideal fit for homeowners who value durability and easy cleaning over modern comfort heights or water-saving features.
DeerValley DV-1F52807 Compact Elongated Toilet
Best for: small bathrooms needing compact design
- Design
- One Piece (what this guide is about)
- Flush Type
- single flush
- Flush Volume
- 1.28 GPF
- Rough-In Size
- 12"
- Bowl Shape
- elongated
- Toilet Type
- one-piece
View on Amazon: DeerValley DV-1F52807 Compact Elongated Toilet
This DeerValley one-piece toilet features a compact, fully skirted design with an elongated bowl. It uses a single flush at 1.28 GPF to save water. The unit includes a soft-close seat and measures 23.5 inches in length. It is built for small bathrooms where space is limited. The white finish and glazed surface help keep cleaning simple.
Pros
- Compact 23.5-inch length saves space
- Fully skirted design hides traps
- 1.28 GPF water-efficient flush
- Soft-close seat included
Cons
- Single flush only, no dual option
- Standard seat height, not ADA compliant
- No bidet or smart features
Good fit if
- You need a toilet for a small bathroom
- You prefer a single flush mechanism
- You want a compact footprint
Skip if
- You require ADA comfort height seating
- You want dual flush controls
- You need a smart bidet toilet
Verdict: DeerValley Compact One-Piece Toilet is a practical pick for tight spaces. It suits buyers who prioritize a small footprint and easy cleaning over advanced features or ADA height.
HOROW HR-ST076W Compact Single Flush Toilet
Best for: small bathrooms needing a sleek, space-saving design
- Design
- One Piece (what this guide is about)
- Flush Type
- Single flush
- Flush Volume
- 1.28 GPF
- Rough-In Size
- 12"
- Bowl Shape
- Elongated
- MaP Flush Score
- 800g
This is a compact, one-piece toilet designed for small bathrooms. It features an elongated bowl and a fully skirted trapway for easy cleaning. The unit uses a single flush with a 1.28 GPF water volume. It includes a soft-close seat and a 2-inch trapway. The footprint is 14 inches wide and 28.8 inches deep. It suits you if you need a space-saving solution that maintains a sleek, modern look.
Pros
- Fully skirted design eliminates corners for easy cleaning
- Compact footprint measures 14 inches wide and 28.8 inches deep
- Soft-close seat with durable stainless steel hinges
- 1.28 GPF single flush conserves water effectively
- 2-inch trapway with MAP 800g score prevents clogs
Cons
- Single flush system lacks the water-saving options of dual flush models
- Standard height seat is not ADA compliant for easier standing
- 101-pound weight makes installation more difficult
Good fit if
- You have a small bathroom or apartment with limited floor space
- You prefer a sleek, modern aesthetic with a fully skirted design
- You want a soft-close seat to prevent slamming noise
Skip if
- You require ADA-compliant chair height for accessibility
- You want to reduce water usage further with a dual flush option
- You need a lightweight unit for easier DIY installation
Verdict: HOROW HR-ST076W Compact One Piece Toilet is a practical choice for small bathrooms where floor space is tight. It fits you if you prioritize a modern, easy-to-clean design over adjustable height or dual-flush flexibility.
CANEST GF-002 Compact One Piece Toilet
Best for: small bathrooms needing space-saving design
- Design
- One Piece (what this guide is about)
- Flush Type
- Dual flush
- Flush Volume
- 1.1/1.6 GPF
- Rough-In Size
- 12"
- Toilet Type
- One-piece
- Target Space
- Small Spaces
This CANEST GF-002 is a one-piece toilet built for small bathrooms. It measures 15 inches wide and 23.5 inches deep, fitting tight spaces. The dual-flush system uses 1.1 or 1.6 gallons per flush. It includes a soft-close seat that detaches quickly for cleaning. The 12-inch rough-in size matches standard plumbing. You get a durable ceramic bowl with a stain-resistant glaze.
Pros
- Compact 15-inch width saves floor space
- Dual flush options at 1.1 and 1.6 GPF
- Soft-close seat with quick-release mechanism
- Standard 12-inch rough-in compatibility
Cons
- Heavier at 95 pounds than some competitors
- Standard seat height, not ADA compliant
- Lacks smart features like bidet or auto-flush
Good fit if
- You need a toilet for a small bathroom
- You want a dual-flush system to save water
- You prefer a one-piece design for easy cleaning
Skip if
- You require ADA comfort height seating
- You want a smart toilet with bidet functions
- You need a taller or larger footprint
Verdict: CANEST GF-002 Compact One Piece Toilet fits small bathrooms with its narrow 15-inch width. It suits buyers who prioritize space-saving design and water-efficient dual flushing.
BAYROLL Round One-Piece Toilet
Best for: small bathrooms and ADA compliance
- Design
- One Piece (what this guide is about)
- Flush Type
- Dual Flush
- Flush Volume
- 0.9/1.28 GPF
- Rough-In Size
- 12"
- Seat Height
- 17"
- Bowl Shape
- round
This is a compact, round one-piece toilet with a 17-inch ADA chair height seat. It features a dual flush system using 0.9 GPF for liquid waste and 1.28 GPF for solid waste. The unit has a 1000g MaP flush score and a fully skirted design for easier cleaning. It fits standard 12-inch rough-ins and measures 25.6 inches long. This model suits small bathrooms where space is limited.
Pros
- Round bowl shape saves space in tight layouts
- Dual flush options at 0.9 and 1.28 GPF
- 1000g MaP flush score for strong waste removal
- 17-inch ADA compliant seat height
- Fully skirted design simplifies cleaning
Cons
- Round bowl shape is less common than elongated designs
- Compact length of 25.6 inches may feel small for some users
- Requires professional plumbing installation for rough-in connection
Good fit if
- You need a toilet for a small bathroom or powder room
- You require ADA compliant seating height for accessibility
- You want a compact footprint that fits narrow spaces
Skip if
- You prefer the standard elongated bowl shape for comfort
- You need a taller seat height than 17 inches
- You want a toilet with a longer overall length
Verdict: BAYROLL Round One-Piece Toilet fits users who prioritize space efficiency and accessible seating in compact bathrooms. The round bowl and dual flush system make it a practical option for small spaces.
Specifications side by side
| Spec | HOROW T0338W ADA Height One-Piece Toilet | DeerValley Compact One-Piece Toilet | Casta Diva Air-Pressure ADA One-Piece | Swiss Madison St. Tropez One-Piece Toilet | Casta Diva Elongated One-Piece Toilet | Casta Diva Elongated One-Piece Toilet | DeerValley DV-1F0437 Elongated One-Piece | Erdoru OPT09 Smart One Piece Toilet | WITMYA Breeze Max-W Smart One-Piece Toilet | DeerValley DV-1F026 10-Inch Rough-In | American Standard Champion 4 One-Piece | DeerValley DV-1F52807 Compact Elongated Toilet | HOROW HR-ST076W Compact Single Flush Toilet | CANEST GF-002 Compact One Piece Toilet | BAYROLL Round One-Piece Toilet |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flush Type | Dual flush | dual flush | Air-pressure assisted | dual flush | dual flush, siphon jet | Dual flush | dual flush | 360° swirling flush | not specified | Dual flush | not specified | single flush | Single flush | Dual flush | Dual Flush |
| Flush Volume | 1.1/1.6 GPF | 1.1/1.6 GPF | 1.0 GPF | 1.1/1.6 GPF | 1.0/1.28 GPF | 1.1/1.6 GPF | 1.1/1.28 GPF | 1.28 GPF | 1.28 GPF | 1.1/1.6 GPF | not specified | 1.28 GPF | 1.28 GPF | 1.1/1.6 GPF | 0.9/1.28 GPF |
| Rough-In Size | 12" | 10" | 12" | 12" | 12" | 12" | 12" | not specified | not specified | 10" | not specified | 12" | 12" | 12" | 12" |
| Seat Height | 17.3" | not specified | 17.2" | not specified | 17.5" | 17" | 17 1/2" | not specified | 17.71 inches | 16 7/8" | standard height | not specified | not specified | not specified | 17" |
| Bowl Shape | Elongated | round | Elongated | elongated | elongated | Elongated | elongated | not specified | not specified | Elongated | elongated | elongated | Elongated | not specified | round |
| MaP Flush Score | 1000g | not specified | 1000g | not specified | 1000g | 1000g | 1000g | 1000g | not specified | 800g | not specified | not specified | 800g | not specified | 1000g |
| Toilet Type | One-piece | one-piece | One-piece | one-piece | one-piece | One-piece | one-piece | not specified | One-piece | One-piece | one-piece | one-piece | One-piece | One-piece | one-piece |
| Sink Configuration | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Single Sink | Single Sink | not specified | not specified |
| Design Style | not specified | not specified | Modern | not specified | Modern | not specified | Modern | not specified | Modern | not specified | not specified | not specified | not specified | not specified | Modern |
| Target Space | Small Bathrooms | Small Bathrooms | not specified | not specified | Small Bathrooms | Small Bathrooms | not specified | not specified | not specified | not specified | not specified | Small Spaces | Small Bathrooms | Small Spaces | Small Bathrooms |
| Included Components | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Bidet | Bidet | not specified | not specified | Soft Close Seat | Soft Close Seat | Soft Close Seat | Soft Close Seat |
| Color | White with Chrome Button | White with Chrome Button and Standard Height | White | Glossy White | Silver Button | White | White with Silver Button | Pearl White | BSJ Pro White/ADA&Foam Shield&Voice Control | White with Chrome Button and Standard Height | White | White with Standard Height Seat | Standard White with Single Flush | White | White 12 Inch Rough In |
| Shape | Elongated | not specified | Elongated | Elongated | Elongated | Elongated | Elongated | not specified | not specified | Elongated | Elongated | Elongated | Elongated | not specified | Round |
| Heated Seat | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Heated Seat | Heated Seat | not specified | not specified | not specified | not specified | not specified | not specified |
| Warm Water | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Warm Water | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Air Dryer | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Air Dryer | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Remote Control | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Remote Control | not specified | not specified | not specified | not specified | not specified | not specified |
| Night Light | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Night Light | not specified | not specified | not specified | not specified | not specified | not specified | not specified |
| Design | One Piece | One Piece | One Piece | One Piece | One Piece | One Piece | One Piece | One Piece | One Piece | One Piece | One Piece | One Piece | One Piece | One Piece | One Piece |
| Dimensions | 26.6 × 15 × 26 inches | 27.2 × 15 × 27.6 inches | 26.9 × 15 × 19.3 inches | 27 × 15.2 × 31.3 inches | 25.4 × 14.6 × 26.6 inches | 27.2 × 14.4 × 25.4 inches | 26.8 × 14.5 × 26.6 inches | 27.6 × 15.2 × 18.5 inches | 26.8 × 15.8 × 20.8 inches | 28.2 × 14.2 × 27 inches | 17.8 × 29.8 × 28.5 inches | 23.5 × 15.8 × 26 inches | 28.8 × 14 × 28 inches | 23.5 × 15 × 27.2 inches | 25.6 × 14.8 × 27 inches |
| Weight | 99.2 pounds | 78 pounds | not specified | 109 pounds | not specified | not specified | 94.8 pounds | not specified | 90 pounds | 99 pounds | 109 pounds | 86.2 pounds | 101 pounds | 95 pounds | 93 pounds |
| Size | 12" Rough-in | 10" Rough-In | not specified | 12" Rough-in | not specified | not specified | 18.2" H with Dual Flush | OPT09 | Breeze Max-W | 10" Rough In | Tank + Bowl + Seat | 12" Rough In | 12" rough in | not specified | not specified |
| Model | T0338W | DV-1F52812R | CD-W001 | SM-1T254 | CD-T006 | CD-T005 | DV-1F0437 | OPT09-A | WITMYA-BSJ | DV-1F026 | 2004314.020 | DV-1F52807 | HR-ST076W | GF-002 | SH-S001 |
If you also plan an office layout, you can review measurements for a computer workstation with one piece.
Key specs for choosing one piece toilets
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Check seat height needs
Seat height determines comfort and accessibility. ADA chair height models measure approximately 17.3 to 17.5 inches from the floor. This matches standard chair levels for easier standing. Standard height options sit lower, often around 15 inches. The HOROW T0338W offers ADA height for accessibility. The DeerValley DV-1F52812 provides standard height for typical users. Choose ADA height if mobility is a concern. Select standard height if you prefer a lower profile. Verify the exact inch measurement in the specs to ensure it matches your physical requirements.
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Measure bowl shape carefully
Bowl shape affects legroom and floor space. Elongated bowls extend further forward, offering more room for users. They typically measure around 27 to 28 inches in length. Round bowls are shorter, often under 26 inches. The BAYROLL SH-S001 uses a round bowl for tight spaces. Most other models, like the Swiss Madison SM-1T254, use elongated shapes. Choose elongated for maximum comfort in larger rooms. Pick round if every inch of floor space counts. Check the length spec to see how much room the bowl will occupy in your bathroom layout.
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Review flush type options
Flush type impacts water usage and cleaning power. Dual flush systems offer two options for liquid and solid waste. This saves water compared to single flush models. The HOROW T0338W and Swiss Madison SM-1T254 both feature dual flush. Single flush toilets use one lever for all waste. The HOROW HR-ST076W is a single flush option. Air-pressure systems, like the Casta Diva CD-W001, provide strong force. Choose dual flush for conservation. Pick air-pressure for powerful clearing. Verify the flush type to match your environmental goals and performance needs.
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Evaluate smart features wisely
Smart features add comfort but require power. Heated seats, bidets, and night lights need electrical outlets. The Erdoru OPT09 includes a heated seat and bidet. The WITMYA WITMYA-BSJ offers remote control and voice commands. These models suit bathrooms with nearby power access. Standard one-piece toilets lack these extras. They rely on manual flushing and basic seats. Choose smart models for luxury and hygiene. Stick to standard models for simplicity and lower maintenance. Check the included components list to see what technology is built into the unit.
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Assess footprint dimensions
Overall dimensions determine if the toilet fits your space. Width, height, and length vary significantly. The DeerValley DV-1F52807 is only 23.5 inches long, making it compact. The American Standard 2004314.020 is wider at 29.8 inches. Measure your bathroom clearance before buying. Ensure there is enough room for the seat to open. Check the width spec to ensure it fits between walls or cabinets. Compare the length spec against your available floor space. Proper sizing prevents installation issues and ensures comfortable use.
Frequently asked questions
What is the difference between standard and ADA height toilets?
ADA height toilets offer a seat height of approximately 17.3 to 17.5 inches, matching standard chair levels for easier standing. Standard height options sit lower, typically around 15 inches. You should choose ADA height if you need accessibility or prefer a taller seat. Models like the HOROW T0338W provide this height, while the DeerValley DV-1F026 offers standard height.
Do I need a 10-inch or 12-inch rough-in size?
You need a 12-inch rough-in for most bathrooms, measuring from the wall to the center of the drain. However, some compact models require a 10-inch rough-in. The DeerValley DV-1F52812 and DV-1F026 use a 10-inch rough-in. Always measure your existing flange distance before purchasing to ensure the toilet fits correctly without installation issues.
Which one piece toilet is best for small bathrooms?
The CANEST GF-002 and DeerValley DV-1F52807 are ideal for small bathrooms due to their compact lengths. The DeerValley DV-1F52807 has a 23.5-inch length, making it one of the shortest profiles. The CANEST GF-002 also measures 23.5 inches long. These dimensions help save floor space in tight quarters while maintaining a one-piece design.
Are smart one piece toilets worth the upgrade?
Smart toilets add features like bidets, heated seats, and night lights. The Erdoru OPT09 includes a heated seat, warm water, and an LED night light. The WITMYA Breeze Max-W offers remote control and voice activation. These features enhance comfort and hygiene. You should consider them if you want advanced functionality beyond basic flushing and seating.
How does dual flush work on one piece toilets?
Dual flush systems let you choose between a low-volume flush for liquids and a full flush for solids. This design conserves water. The HOROW T0338W and Swiss Madison St. Tropez both feature dual flush buttons. You can save water by using the lighter option when appropriate. This mechanism is integrated into the toilet’s flush valve.
What is the difference between round and elongated bowls?
Round bowls are shorter from front to back, saving space in small bathrooms. The BAYROLL SH-S001 uses a round bowl. Elongated bowls are longer, offering more room and comfort. Most other models, like the Casta Diva CD-W001, use elongated shapes. Choose round for tight spaces and elongated for standard comfort and accessibility.