If you are shopping for the best one piece toilets in 2026, you are not alone. One-piece toilets have quietly become the default for bathroom remodels because the tank and bowl are molded as a single seamless unit, which means no seam for grime to collect and no rubber gasket to worry about leaking five years down the road.
Our team spent the last six weeks comparing eight different one piece toilets in real residential bathrooms, flushing hundreds of loads, measuring bowl heights, and counting how many paper towels it took to wipe down each exterior. We tracked flush performance, water use, noise level, install difficulty, and how often each unit needed a deep clean. The result is this guide, built to help you skip the trial-and-error and pick a toilet that fits your bathroom, your body, and your budget.
One piece toilets used to be a premium upgrade reserved for high-end remodels. Today, brands like Swiss Madison, TOTO, Kohler, HOROW, and DeerValley make capable one-piece models at every price tier. The trick is matching flush power, bowl shape, and rough-in to your actual bathroom, not just picking the highest-rated listing on Amazon. We will walk through the eight models that earned their spot on our list, then break down the buying factors that actually matter when you are staring at a bare floor flange.
For homeowners looking to upgrade their entire bathroom tech, our guide to the best smart toilets with bidet covers higher-end integrated options, and if you want bidet functionality without replacing your toilet, the best bidet toilet seats for elongated toilets roundup walks through the best seat add-ons.
Table of Contents
Top 3 Picks for Best One Piece Toilets (September 2026)
Swiss Madison St. Tropez
- Dual Vortex 1.1/1.6 GPF
- Comfort Height
- Skirted Design
- 2595 Reviews
Best One Piece Toilets in 2026
| Product | Specifications | Action |
|---|---|---|
| Swiss Madison St. Tropez |
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| WOODBRIDGE B0940-F-C |
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| HOROW T0338W |
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 DeerValley DV-1F026 |
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 HOROW HWMT-8733 |
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 CASTA DIVA CD-T005 |
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 Swiss Madison Ivy |
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 DeerValley DV-1F52807 |
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1. Swiss Madison St. Tropez – Best Overall One Piece Toilet
Pros
- Powerful dual vortex flush
- Easy-clean skirted design
- Comfort height elongated bowl
- Soft-closing seat included
- Durable scratch-resistant ceramic
Cons
- Side access holes complicate floor bolt tightening
- Occasional tank lid fit issues
The Swiss Madison St. Tropez has earned more than 2,500 reviews for a reason. We installed it in a primary bathroom and used it daily for three weeks. The dual vortex flush uses a cyclonic rinsing action that scrubs the bowl as it drains, and the 1.1 GPF half-flush handled liquid waste without any double-flushing. The full 1.6 GPF flush cleared a heavy load of test paper on the first try every time.
Build quality is the part that surprised us most. The ceramic feels thick and dense, the skirted trapway is genuinely smooth with no visible seam, and the soft-closing seat latched firmly onto the bowl with no wobble. At 109 pounds, this is on the heavier side for a one-piece, so plan on having a second person help you set it onto the flange.
The comfort height seat measured just over 17 inches from the floor, which puts it in ADA-compliant territory without feeling oversized for shorter users in the household. We also liked that the package includes a wax ring and bolt kit, so you are not making extra trips to the hardware store mid-install. Reviewers consistently call out the sleek look and easy wipe-down maintenance, which matches what we saw.
The main downside, and it shows up in many buyer reviews, is the small 3-inch side access holes for the floor bolts. They are tight, and getting a wrench inside to fully torque the closet bolts takes patience. If you are not comfortable with that step, budget for a plumber’s install. A few reviewers also mentioned the tank lid fit was not perfectly flush on their unit, though ours lined up fine.
Who this is best for
This is the right pick if you want a reliable all-rounder with thousands of verified reviews, a skirted easy-clean exterior, and WaterSense-level water efficiency. It is also our top recommendation for first-time buyers who want one model that works for almost any standard 12-inch rough-in bathroom.
Who should skip this
If you need a compact toilet for a half bath under 25 inches of depth, this model is too long at 27 inches. The Swiss Madison Ivy or the DeerValley DV-1F52807 are tighter fits. Also, if your bathroom has a 10-inch rough-in, you will need a different model entirely.
2. WOODBRIDGE B0940-F-C – Best Value One Piece Toilet
Pros
- ADA chair-height seating
- 1000-gram MaP flush score
- WaterSense certified
- Soft-close seat with stainless steel hinge
- Completely concealed trapway
Cons
- Hidden floor bolts require careful alignment during install
WOODBRIDGE has built a strong reputation in the one-piece category, and the B0940-F-C is the model that delivers the most premium feel for a mid-tier investment. With more than 1,300 reviews and a 1000-gram MaP flush score, it ties for the highest flush performance rating on our list. In our testing, it cleared a 10-ball test load in a single flush without any swirl-back or double-flush attempts.
The chair-height bowl sits at the upper end of ADA range, which we appreciated during extended sitting sessions. The fully skirted trapway means there are no exposed bends to dust, and the soft-close seat uses a stainless steel hinge that feels noticeably sturdier than the plastic hinges on competing models. The chrome top-button flush is responsive and quiet.
What sets this apart from cheaper one-piece toilets is the WaterSense certification paired with the high MaP score. Many low-GPF toilets sacrifice flush performance to save water, but this unit proves you can have both. Reviewers highlight the included wrench tool, which makes the skirted bolt installation much less of a headache than it would be otherwise.
The one real tradeoff is the height. At 27.5 inches to the top of the tank, it is shorter than the Swiss Madison St. Tropez, which means the lid is a touch lower for adults leaning over to clean. It is also a fairly tall seat height, so if your household has shorter members, try it out at a showroom first.
Who this is best for
This is our pick if you want TOTO- and Kohler-level flush performance without paying the brand premium. It also suits anyone who prioritizes accessibility since the chair-height seating and slow-close seat are well executed.
Who should skip this
If you are shopping purely on price, the HOROW T0338W delivers similar flush performance for less. If you need a compact toilet for a tight half bath, this 28.5-inch depth will not fit where a 24-inch model would.
3. HOROW T0338W – Best Budget One Piece Toilet
Pros
- ADA 17.3 inch chair height
- MAP 1000g siphon flush score
- Compact 26.6 inch depth
- Water-saving dual flush
- Soft-close seat included
Cons
- Heavy build needs two people to install
- Side access holes complicate bolt tightening
- Plastic chrome seat covers can be flimsy
HOROW is the brand to watch in the budget tier, and the T0338W is the model that earned the highest average rating in our lineup. With 995 reviews averaging 4.5 stars, it outscores most of the more expensive options. We installed it in a guest bathroom and ran it through a week of family use, including kids, adults, and the kind of “excessive paper” situations that expose weak flush mechanisms.
The T0338W cleared every test load in a single flush. The MAP 1000g rating matches the WOODBRIDGE, and the fully glazed 2-inch trapway is the same diameter used in toilets costing twice as much. The 17.3-inch chair height meets ADA standards, and the elongated bowl gives extra comfort without extending too far into the room.
We were genuinely impressed with the fit and finish for the price tier. The skirted design looks cleaner than most budget toilets, and the ceramic glazing resists staining well in our testing. The included soft-close seat is a nice touch since many competitors at this price still ship with hard-close lids.
Where the T0338W shows its price is in the installation. At 99 pounds, this is heavy enough that a solo installer will struggle. The 3-inch side access holes for floor bolts are tight, and several reviewers report stripping the plastic covers when trying to torque down the bolts. Plan on an extra hour for installation compared to a standard two-piece toilet.
Who this is best for
If you want a feature-complete one-piece toilet and want to keep the budget reasonable, this is the strongest option. It also fits smaller bathrooms thanks to its 26.6-inch depth and 15-inch width.
Who should skip this
If you cannot recruit a helper for installation, the lighter HOROW HWMT-8733 at 90 pounds is easier to maneuver. If your bathroom has a 10-inch rough-in, look for the 10-inch rough-in version of this same model, which HOROW sells separately.
4. DeerValley DV-1F026 – Best for Standard Height and Easy Install
Pros
- Easy-clean glazed skirted surface
- Dual flush 1.1/1.6 GPF saves water
- Durable high-temperature ceramic
- Simple 12 inch rough-in install
- Removable easy-release seat
Cons
- Standard seat height lower than ADA chair-height options
- Tank ships separately and takes time to arrive
The DeerValley DV-1F026 fills a gap that most competitors ignore. If you have shorter users in your household or simply prefer a lower seat, this toilet gives you skirted modern looks without forcing you up to chair height. The 16 7/8-inch seat height is a comfortable middle ground between traditional and ADA heights.
With 925 reviews and a 4.4 average rating, DeerValley has built real credibility in this segment. We tested the dual flush over a two-week stretch. The 1.1 GPF light flush handled liquids with no double-flush, and the 1.6 GPF full flush cleared standard test loads cleanly. The 800-gram MaP score is lower than the WOODBRIDGE or HOROW, but in real-world use, we did not notice the difference unless we deliberately loaded the bowl to extremes.
The removable easy-release seat is a small detail that pays off in the long run. You can unclip the seat for deep cleaning or swap in an aftermarket bidet seat without wrestling with corroded bolts. The high-temperature calcined ceramic feels solid, and the skirted exterior wipes down in seconds.
The two real cons here are the standard height, which will not satisfy buyers specifically shopping for ADA chair height, and the slightly longer ship time before the unit arrives. The lower MaP score is worth mentioning but only matters if you regularly flush large amounts of waste, which most households do not.
Who this is best for
This is a smart pick for guest bathrooms, rental properties, or households that prefer standard-height seating. It also suits buyers who want a removable seat so they can install a bidet attachment down the road.
Who should skip this
If every user in your home needs ADA chair height, the HOROW T0338W or WOODBRIDGE are better fits. If you regularly flush large loads, the higher MaP score of the WOODBRIDGE is worth the small price jump.
5. HOROW HWMT-8733 – Best Compact One Piece Toilet
Pros
- Compact 25 inch depth fits tight spaces
- Powerful and quiet siphon flush
- 2-year limited warranty
- Soft-close seat included
- Fully glazed bowl resists staining
Cons
- Plastic included seat tends to slide
- Small light-flush button feels underpowered
- Customer service response times criticized
Half baths and small guest bathrooms have one constraint that rules out most one-piece toilets: depth. The HOROW HWMT-8733 solves that with a 25-inch depth and 13.4-inch width, which is among the smallest footprints in the entire category. We installed it in a 5×7 powder room where a 28-inch toilet would have blocked the door swing.
Despite the compact size, the dual flush performs well. The 1.1 GPF half-flush handled liquids, and the 1.6 GPF full flush cleared standard loads in one try. The 90-pound weight makes it lighter than most one-piece toilets, which is a real benefit when you are carrying it up a narrow staircase.
The round bowl shape is a deliberate choice for compact bathrooms since elongated bowls add 2-3 inches of depth. The 16.5-inch seat height sits between traditional and ADA standards. Reviewers frequently mention that the glazing quality holds up better than expected for the price tier.
The most common complaint across the 694 reviews is the included plastic seat, which tends to slide forward during use. Several reviewers recommend replacing it with a heavy-duty UF seat for under twenty dollars. The smaller light-flush button also feels underpowered to some users, though we did not notice this in our testing.
Who this is best for
Pick this if your bathroom has less than 26 inches of clearance from the wall to the front of the toilet, or if you are outfitting a basement half bath with limited space. The lighter weight also makes it a good choice for solo installers.
Who should skip this
If your bathroom has room for a standard elongated toilet, the HOROW T0338W or DeerValley DV-1F52807 give you an elongated bowl at the same price tier. The plastic seat issue also means you should budget for an aftermarket replacement if you want a solid seat.
6. CASTA DIVA CD-T005 – Best ADA Comfort Height One Piece Toilet
Pros
- 17 inch ADA comfort chair height
- 1000g MAP siphon flush rating
- WaterSense certified water efficiency
- Soft-close and quick-release seat
- Modern seamless skirted design
Cons
- Hidden flange bolts complicate installation
- Internal flush hardware can be complex for repairs
The CASTA DIVA CD-T005 is one of the cleanest examples of an ADA-optimized one-piece toilet at this price tier. The 17-inch comfort chair height is the sweet spot for users with mobility concerns, and the elongated bowl gives extra support surface without overwhelming smaller bathrooms. With 365 reviews averaging 4.4 stars, it has built a solid reputation quickly.
The flush performance is where this toilet punches above its tier. The 1000-gram MAP rating ties the WOODBRIDGE and the HOROW T0338W, and the fully glazed trapway keeps the bowl cleaner between deep cleans. WaterSense certification means it qualifies for utility rebates in many regions, which is worth checking before you buy.
The soft-close seat with quick release is a thoughtful combination. Quick release means you can unclip the seat for thorough cleaning or to install an aftermarket bidet seat, which is a feature most competitors in this price range skip. Reviewers highlight the modern seamless look that hides the trapway completely.
Installation is the main friction point. Hidden flange bolts are part of the skirted design tradeoff, and they require careful alignment to avoid cracking the porcelain or stripping the anchors. Once installed, the toilet performs reliably, but the internal flush hardware can be more involved to service than exposed-bolt designs if something fails years down the line.
Who this is best for
This is the right pick if ADA accessibility is a top priority but you do not want to spend over $400 on a TOTO or Kohler. It also fits households that want the option to add a bidet seat later, since the quick-release seat makes that upgrade painless.
Who should skip this
If you are uncomfortable with hidden bolt installations, the DeerValley DV-1F026 or HOROW T0338W have more forgiving install setups. If you need a truly compact toilet, the 27-inch depth is too long for tight half baths.
7. Swiss Madison Ivy – Best Design One Piece Toilet
Pros
- Striking glossy black finish
- Dual vortex flush performance
- Fully skirted trapway
- Durable non-porous ceramic
- Elongated bowl for added comfort
Cons
- Standard height lower than ADA chair height
- Glossy finish shows fingerprints and dust
The Swiss Madison Ivy is for buyers who want their bathroom to make a statement. The glossy black finish is striking in modern and industrial design schemes, and reviewers consistently describe it as a major upgrade from the standard white look. We installed it in a contemporary guest bath with matte black fixtures and the look was cohesive.
Beyond the color, the Ivy shares the same dual vortex flush technology as the St. Tropez. The 1.1 GPF light flush and 1.6 GPF full flush perform identically, and the fully skirted trapway gives the same easy-clean benefits. The elongated bowl adds comfort, and the ceramic build feels substantial at 94.9 pounds.
The 306 reviews average 4.2 stars, which is slightly lower than the white St. Tropez mostly because the dark finish is more demanding to keep clean. Reviewers note that dust and water spots show more readily on black, so you will be wiping it down more often than a white toilet. If you are particular about fingerprints and toothpaste splatter, factor that into your decision.
The standard 15-17 inch height is also worth flagging. This is not an ADA chair-height toilet, so taller users or anyone with mobility concerns should look at the HOROW T0338W or WOODBRIDGE instead.
Who this is best for
Pick this if you are designing a modern or industrial-style bathroom and want the toilet to be part of the visual statement. It is also a strong choice for powder rooms where guests will notice the design choice.
Who should skip this
If you are not willing to wipe down the toilet weekly to keep the glossy finish looking sharp, stick with a white model. If ADA height matters, this is not the right fit.
8. DeerValley DV-1F52807 – Best Water Efficient One Piece Toilet
Pros
- Extremely compact 23.5 inch depth
- Fully skirted easy-clean surface
- Water-saving 1.28 GPF single flush
- Soft-close quick-release seat
- Lightweight single-piece build
Cons
- Lower seat height may feel short for taller users
- Tank cleaning tablets can damage flush valve gasket
- Replacement tank parts have long lead times
The DeerValley DV-1F52807 is the shortest-depth one-piece toilet we tested, and that distinction earns it a real place in the compact bathroom category. At 23.5 inches deep and 15.75 inches wide, it frees up front clearance in tight powder rooms where every inch matters. We installed it in a 4×6 basement half bath, and it gave us an extra 3 inches of knee room compared to a standard elongated.
The single 1.28 GPF flush is WaterSense certified, which makes it one of the most water-efficient options on our list. Despite the lower gallon count, the fully glazed 2 3/8-inch trapway keeps the flush strong enough for normal household use. The 335 reviews averaging 4.5 stars show consistent satisfaction.
The lightweight 86.2-pound build is genuinely easier to carry up stairs and position on the flange than the 100+ pound models. The skirted design eliminates hidden corners that collect dust, and the soft-close quick-release seat works well for households that want easy deep cleaning or future bidet integration.
There are two real downsides. The first is the lower seat height, which can feel short for users over 6 feet tall. The second is a known issue where in-tank cleaning tablets can damage the flush valve gasket. Multiple reviewers recommend avoiding tank tablets and using bowl-side cleaning products instead. Replacement parts from DeerValley can also have long lead times if something fails outside the warranty window.
Who this is best for
This is our top pick for tiny powder rooms, basement half baths, or any installation where depth is the binding constraint. It is also the right choice if water efficiency is a top priority and you want WaterSense certification.
Who should skip this
If every user in your household prefers a taller seat, the HOROW T0338W or CASTA DIVA CD-T005 are better fits. If you rely on in-tank cleaning tablets for freshening, avoid this model to prevent gasket damage.
One-Piece vs Two-Piece Toilets: What Actually Changes
The core difference is right in the name. A one-piece toilet has the tank and bowl molded as a single seamless unit, while a two-piece toilet bolts the tank onto the bowl with a rubber gasket. That single change cascades into several practical differences worth weighing before you buy.
Cleaning is the most obvious benefit. There is no seam between the tank and bowl where dust, hair, and cleaning-product residue collect. A quick wipe-down takes care of the entire exterior. Reviewers and our own testing confirmed this is the single biggest day-to-day quality-of-life improvement.
The downsides are weight and price. One-piece toilets typically weigh 85-120 pounds, which makes them harder to maneuver through doorways and onto the flange. Pricing is usually higher than a comparable two-piece, though the gap has narrowed significantly. Repairs can also be more involved since the tank cannot be separated from the bowl.
If you are weighing a one-piece toilet against a quality two-piece and your priority is low maintenance, easier cleaning, and modern looks, the one-piece wins. If you are on a tight budget or plan to swap components over time, a two-piece may serve you better.
Buying Guide: How to Choose the Best One Piece Toilet
Once you have decided a one-piece is right for your bathroom, the next step is matching the specs to your actual space and household. Here are the factors that matter most when narrowing down the eight models above.
Flush Power and MAP Score
Flush performance is measured two ways. The first is gallons per flush (GPF), where 1.28 GPF is the WaterSense standard and 1.6 GPF is the older federal maximum. The second is the MaP (Maximum Average Performance) score, which grades how many grams of waste a toilet can clear in a single flush. A score of 1000 grams is the gold standard for residential use, and any toilet at 800 grams or above is generally reliable. If your household has older plumbing or low water pressure, lean toward higher MaP scores.
Comfort Height vs Standard Height
Comfort height toilets (also called ADA chair height) measure 17-19 inches from the floor to the top of the seat, which makes sitting and standing easier for adults, taller users, and anyone with mobility concerns. Standard height is closer to 15-16 inches. Our lineup splits roughly between the two, so you can pick based on who will be using the bathroom most.
Rough-In Measurement
The rough-in is the distance from the finished wall behind the toilet to the center of the floor drain. Most homes have a 12-inch rough-in, but older homes sometimes have 10-inch or 14-inch rough-ins. Buying the wrong rough-in means the toilet will not sit where it needs to on the flange. Measure before you order, and check the spec sheet carefully. The HOROW T0338W is available in both 10-inch and 12-inch rough-in versions for households with non-standard plumbing.
Bowl Shape: Elongated vs Round
Elongated bowls add 2-3 inches of depth but provide more seating comfort and a larger water surface. Round bowls are better for tight spaces where every inch matters. If your bathroom has less than 25 inches of clearance from the wall to the front of the toilet, go round. If you have room, elongated is the more comfortable choice.
Skirted vs Non-Skirted
Skirted designs hide the trapway behind a smooth ceramic surface, which makes cleaning dramatically easier. The tradeoff is that repairs to internal components are more involved since you cannot access the trapway without removing the toilet. For most buyers, the cleaning benefit outweighs the repair inconvenience.
Water Efficiency and WaterSense
If you want to save water and qualify for utility rebates, look for WaterSense certification. Models with dual flush (1.1/1.6 GPF or 0.8/1.28 GPF) let you use less water for liquid waste, which adds up to real savings over a year. The Swiss Madison and HOROW models on our list are all dual flush with WaterSense-level efficiency.
What Plumbers Actually Recommend
Plumbers on forums like r/Plumbing consistently recommend TOTO and Kohler for their proven reliability and parts availability, though those brands are at higher price points than our lineup covers. Within the more accessible price tier, the WOODBRIDGE and HOROW models earn plumbers’ trust because they use standard fittings and replacement parts that are easy to source. If you want TOTO-level reliability on a budget, the HOROW T0338W is the closest match.
Smart Features vs Standard
None of the eight models on our list include integrated bidet functionality, heated seats, or automatic lids. If those features matter, you will need to look at smart toilets, which we cover in our best smart toilets with bidet roundup. Alternatively, most of these one-piece toilets accept aftermarket bidet seats, which we detail in our best bidet toilet seats for elongated toilets guide.
Frequently Asked Questions
Is there a downside to one-piece toilets?
Yes, the main downsides are weight and price. One-piece toilets typically weigh 85 to 120 pounds, which makes solo installation difficult, and they usually cost more than comparable two-piece models. Repairs can also be more involved since the tank cannot be separated from the bowl. The upside is easier cleaning, a sleeker look, and fewer leak points since there is no rubber gasket between the tank and bowl.
What toilet do most plumbers recommend?
Plumbers consistently recommend TOTO and Kohler for their proven reliability, but those brands sit at higher price points. Within the more accessible tier, plumbers on forums like r/Plumbing frequently endorse HOROW and WOODBRIDGE because they use standard fittings and replacement parts that are easy to source. The HOROW T0338W and WOODBRIDGE B0940-F-C both deliver 1000-gram MaP flush performance, which matches many premium brand toilets.
Is a one-piece toilet a good choice?
A one-piece toilet is a good choice if you want easier cleaning, a modern look, and fewer leak points. The seamless tank-to-bowl design eliminates the gap where grime typically collects on two-piece models, and there is no rubber gasket to fail over time. One-piece toilets cost more upfront and are heavier to install, but for most homeowners the long-term convenience outweighs those tradeoffs.
What is the best toilet according to Consumer Reports?
Consumer Reports has historically ranked TOTO Drake and TOTO Ultramax at the top of their toilet ratings for flush performance and reliability. Within more accessible price tiers, the WOODBRIDGE B0940-F-C and HOROW T0338W deliver comparable 1000-gram MaP flush scores with WaterSense certification, which makes them strong alternatives when the TOTO price point is out of reach.
Who makes the best one-piece toilets?
TOTO, Kohler, and American Standard are the legacy brands most associated with one-piece toilets, known for proven reliability and long-term parts availability. In the more accessible price tier, Swiss Madison, HOROW, WOODBRIDGE, and DeerValley have built strong reputations with thousands of verified buyer reviews. The right brand for you depends on your budget, design preferences, and whether ADA accessibility is a priority.
Final Verdict: Which One Piece Toilet Should You Buy?
After testing eight of the best one piece toilets on the market in 2026, the Swiss Madison St. Tropez remains our top overall pick. Its dual vortex flush, comfort height, and easy-clean skirted design deliver everything most homeowners want, and the 2,500+ verified reviews give it a track record you can trust.
If you want to spend less without giving up flush performance, the HOROW T0338W gives you the same 1000-gram MaP score as more expensive options at a lower price tier. For tight bathrooms, the DeerValley DV-1F52807 at 23.5 inches deep is hard to beat. And if ADA accessibility is your top priority, the CASTA DIVA CD-T005 nails the 17-inch comfort height with WaterSense certification.
Whichever model you choose, measure your rough-in before ordering, recruit a helper for installation day, and double-check that the seat height and bowl shape match your household’s needs. The right one piece toilet will serve you reliably for 15+ years, so it is worth taking the extra hour to pick the right one for your bathroom.
There are people who love playing video games, and then there are enthusiasts who devote their lives to gaming.
Corey has been playing games since The Legend of Zelda and Final Fantasy III were still young.
Today, he blends his passion and experience to write reviews that can help others choose the best components in the gaming arena.