Key takeaways
- Configuration: One-piece, elongated bowl, white finish
- Overall dimensions: 26.6″D x 15″W x 26″H
- Seat height: 17.3 inches from floor to seat (ADA chair height)
- Flush system: Siphon flushing with fully-glazed 2-inch trapway; dual-flush 1.1 / 1.6 GPF
- Rough-in: 12-inch (manufacturer notes 10-inch and 12-inch versions are offered; verify listing selection)
- Seat: Soft-closing PP seat, screw-fixed elongated seat
- Design notes: Seamless exterior for easier wipe-down; large side access openings stated to simplify floor mounting
- Support: Lifetime after-sales support, 1-year limited warranty, stated 12-hour customer response
Our top picks
HOROW T0338W One Piece Toilet with ADAADA-height 17.3-inch seat eases sitting and standing
Dual-flush 1.1/1.6 GPF balances power and water savings
Soft-close seat reduces slamming noise
99.2-pound ceramic body is heavy to maneuver during install
Must confirm 10-inch vs 12-inch rough-in before buying
Gerber Viper Force Compact Elongated Two-Piece Toilet- Versatile Gerber toilet complements any decor, making it…
- Space-saving elongated bowl fits in smaller bathrooms while…
- 1.28 gpf high-efficiency toilet delivers a strong, bowl-clearing…
Compact 15.4 Inch Elongated Two Piece Toilet- 【Compact Round Front Toilet for Small Bathrooms】Designed with…
- 【Side Flush Handle for Easy Access】The side-mounted flush…
- 【1.28 GPF Water-Saving Siphonic Flush】This toilet uses a…
| Product | Key specs | |
|---|---|---|
| HOROW T0338W One Piece Toilet with ADA | Check price | |
| Gerber Viper Force Compact Elongated Two-Piece Toilet | Versatile Gerber toilet complements any decor, making it… Space-saving elongated bowl fits in smaller bathrooms while… 1.28 gpf high-efficiency toilet delivers a strong, bowl-clearing… | Check price |
| Compact 15.4 Inch Elongated Two Piece Toilet | 【Compact Round Front Toilet for Small Bathrooms】Designed with… 【Side Flush Handle for Easy Access】The side-mounted flush… 【1.28 GPF Water-Saving Siphonic Flush】This toilet uses a… | Check price |
 DeerValley Compact One Piece Toilet for Small | Space-Saving Comfort & Efficiency: Designed to perfectly fit… High-Efficiency Dual Flush System: This Modern toilet features… Soft-Close & Removable Seat: The premium soft-close toilet… | Check price |
 DeerValley Compact One-Piece Toilet 1.28 GPF Single | High Quality & Easy to Clean: The white… Skirted Design for Easy Cleaning: The smooth skirted… Water-Saving Powerful Single Flush: 1.28 GPF siphon flush… | Check price |
 Gerber Maxwell Select Elongated Two-Piece Dual-Flush Toilet | Versatile Gerber toilet complements any decor, making it… Split-flush mechanism 1.28 and 1.0 gpf high-efficiency toilet… Elongated slow close toilet seat gently lowers to… | Check price |
 24.8" Depth Compact Toilet For Small Bathrooms | Compact One-Piece Design: This compact toilet features a… Comfort Height & Elongated Bowl: Unlike typical compact… Efficient Water Use & Reliability: This dual flush… | Check price |
 Casta Diva One Piece Toilet with 17.2" | Brushed Silver Toilet with Air-Pressure Assisted Flush (1.0… Hands-Free Convenience: 1-piece toilet flush via foot-kick or… Powerful Siphon Flush: experience powerful flushing with the… | Check price |
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Updated October 2026 — The best compact elongated toilets for small bathrooms keep total depth at about 27 inches or less while keeping an elongated seat. The HOROW T0338W (26.6 in deep, 15 in wide, 17.3 in chair height, 1.1/1.6 GPF) is the best overall fit, the Los Flexi 24.8″ Depth Compact Toilet is the pick when every inch of depth counts (24.8 in as stated in the seller’s listing title), and the KOHLER San Souci K-5172 (1.28 GPF, concealed trapway, AquaPiston flush) is the name-brand choice for comfort height.
No gravity drain where you want the toilet? The SANIFLO Sanicompact 4C is only 18-1/4 in deep and pumps waste through a built-in macerator.
Compact Elongated Toilets for Small Bathrooms: The Short Answer
A compact elongated toilet keeps the longer, more comfortable elongated seat but trims the projection to roughly 25 to 28 inches, compared with 28 to 30 inches or more for a standard elongated model. For most small bathrooms, the three picks to start with are the HOROW T0338W (26.6 in deep, 17.3 in chair height, 1.1/1.6 GPF), the Gerber Viper Force Compact Elongated Two-Piece (a lift-off seat and tool-free install kit) and the KOHLER Santa Rosa One-Piece Compact Elongated 30810 (1.28 GPF, a name-brand option in the mid-range).
Before comparing models, measure three things: the rough-in distance from the wall to the drain center (most picks here use 12 inches), the clear space in front of the bowl, and the side clearance from the bowl center to the nearest wall or vanity. A toilet that is only one inch shallower can be the difference between a comfortable door swing and a bruised shin.
Buyers choosing a compact elongated toilet usually weigh the same trade-offs: one-piece bodies are easier to wipe but heavier to carry, two-piece bodies are easier to maneuver into tight alcoves, and chair-height bowls are easier on knees but can leave shorter users with feet off the floor. The comparison table and budget tiers below weigh those trade-offs against published depth, height and flush data.
Detailed product breakdowns
Compact elongated toilets try to solve two competing needs: the comfort of an elongated bowl and the smaller footprint required in a powder room, narrow alcove, or small primary bath. Depth from wall to front of bowl, bowl height, trapway design, flush volume, and rough-in compatibility all affect how well a model fits and functions. The eight options below are evaluated strictly on the specifications and manufacturer information stated in each listing, with attention to trade-offs that commonly matter in small bathrooms. Where listing information is limited, this guide notes what to verify before you buy so you can confirm fit and performance with the seller or manufacturer.
1. HOROW T0338W Compact One Piece Toilet, ADA Chair Height 17.3″, Elongated Bowl, Dual Flush 1.1/1.6 GPF, White, 12 Inch Rough-In
The HOROW T0338W is positioned as a space-conscious one-piece with chair-height seating, which is a common priority for shared family bathrooms and for households looking for easier sit-to-stand movement. According to the manufacturer information, it measures 26.6 inches deep by 15 inches wide by 26 inches high, placing it on the short-depth end of the elongated category. That matters in a small bathroom where every inch in front of the bowl affects door swing, knee clearance, and code-required clearances.
Key specifications from the listing:
- Configuration: One-piece, elongated bowl, white finish
- Overall dimensions: 26.6″D x 15″W x 26″H
- Seat height: 17.3 inches from floor to seat (ADA chair height)
- Flush system: Siphon flushing with fully-glazed 2-inch trapway; dual-flush 1.1 / 1.6 GPF
- Rough-in: 12-inch (manufacturer notes 10-inch and 12-inch versions are offered; verify listing selection)
- Seat: Soft-closing PP seat, screw-fixed elongated seat
- Design notes: Seamless exterior for easier wipe-down; large side access openings stated to simplify floor mounting
- Support: Lifetime after-sales support, 1-year limited warranty, stated 12-hour customer response
Strengths: The combination of compact depth and elongated bowl is the core appeal. Many compact models shorten the tank or bowl proportions, but the T0338W retains an elongated seating surface while keeping overall depth to 26.6 inches, which helps in bathrooms under 30 square feet. The one-piece form removes the gap between tank and bowl where dust and moisture collect on two-piece models, and the manufacturer describes a seamless exterior that is faster to clean. Chair height at 17.3 inches is within the range many adults find more comfortable than standard 15-inch heights, especially when the toilet is used frequently by taller adults or those who prefer less squatting. Dual-flush 1.1/1.6 GPF offers a water-saving option for liquid waste while retaining a full-volume flush, and the fully-glazed trapway is intended to support consistent waste evacuation.
Trade-offs and what to check: At 15 inches wide, this is a narrow footprint, but buyers should still confirm bowl width with the seat installed and check side clearance for supply lines and baseboards. The 2-inch trapway is standard for this class; if your household has a history of chronic clogging or low-slope drain lines, confirm with the manufacturer how the siphon system performs with bulk waste and whether a comfort-height bowl changes your required foot position on the floor. Because HOROW lists both 10-inch and 12-inch rough-in options, double-check the SKU before ordering so the outlet aligns with your flange position. One-piece toilets are typically heavier and more awkward to maneuver into tight spaces than two-piece models, so plan for two people on installation despite the stated side access openings. Finish and seat material are listed as PP; if you prefer slow-close wood or quick-release hinges for deep cleaning, verify hinge type.
Who it is best for: Households that want a compact elongated one-piece with chair-height comfort, an easy-to-clean exterior, and dual-flush flexibility without increasing depth. It is a logical shortlist option when your rough-in is 12 inches and your priority is saving front-to-back space while keeping elongated comfort.
Who should skip it: Buyers who need a 10-inch rough-in should select the specific 10-inch variant, not this 12-inch listing. Those who prefer a standard-height bowl, want a wood-composite seat, or need an ultra-narrow tank for an unusually tight alcove should compare measurements carefully.
Check the HOROW T0338W on Amazon
2. Gerber Viper Force Compact Elongated Two-Piece Toilet, Soft-Close, White
The Gerber Viper Force in a compact elongated two-piece configuration focuses on everyday usability in small bathrooms: a trimmer footprint than a standard elongated model, plus features aimed at cleaning and installation convenience. The listing title highlights a strong flush, space-saving design, a seat that lifts off in seconds for cleaning, and a tool-free install kit.
Key specifications from the listing:
- Configuration: Two-piece, compact elongated bowl, soft-close seat, white finish
- Flush and efficiency: Listed as strong flush (specific GPF and flush technology not stated in the listing)
- Cleaning feature: Seat lifts off in seconds
- Installation: Tool-free install kit included
- Rough-in, dimensions, bowl height, and trapway details: Not stated in the listing. Gerber’s own catalog lists a compact Viper Force (model GRS48350) with a 12-inch rough-in, a 1.28 GPF gravity flush and a chair-height bowl, and retailer listings cite a depth of about 27.75 inches; sources differ slightly, so confirm the model number and depth before buying
Strengths: From the information available, this model’s differentiators are practical rather than purely aesthetic. A lift-off seat is a meaningful convenience in a compact bathroom where you are cleaning around tight side clearances; being able to remove the seat without tools makes it easier to clean hinge areas and the top of the bowl rim. Two-piece construction can also simplify transport and handling through narrow doorways and up stairs compared to a one-piece, which matters in older homes where the bathroom is at the end of a small hallway. The stated tool-free install kit may reduce time and complexity for installers, and Gerber as a brand is widely stocked for replacement parts, which can be useful over the life of the toilet. The compact elongated bowl approach attempts to preserve seating comfort without requiring the full depth of a conventional elongated unit.
Trade-offs and what to check: Because the listing does not include dimensions, GPF, flush mechanism details, rough-in, bowl height, or MAP performance, buyers should confirm these specifics directly on the listing or spec sheet before ordering. Key verification points include: overall depth and width to ensure compliance with clearance codes, rough-in distance (commonly 12 inches, but 10- and 14-inch options exist in some lines), bowl height (standard vs. comfort/chair height), flush valve size and whether it is single or dual flush, and whether the toilet is WaterSense certified. Also verify what is included in the tool-free kit and whether a wax ring, closet bolts, and supply line are part of the package. As with any two-piece, expect a seam between tank and bowl that will need periodic cleaning.
Who it is best for: Buyers who prioritize easy cleaning and simpler handling during installation, and who want a compact elongated footprint from a widely supported brand. It is a sensible candidate if you value a removable seat and an included install kit.
Who should skip it: Anyone who requires confirmed dimensions, water usage, or rough-in information before committing should not assume specs; verify documentation first. If you specifically want the seamless exterior and reduced crevices of a one-piece or a fully skirted base, compare other models on this list.
Check the Gerber Viper Force Compact on Amazon
3. Compact 15.4 Inch Elongated Two Piece Toilet, Side Flush White Ceramic Bathroom Toilet with Soft Close Seat, 1.28 GPF Siphonic Flush, cUPC Certified, 12 Inch Rough-In
This listing is built around a narrow width and water-efficient flush. With a stated 15.4-inch width, 1.28 GPF siphonic flush, cUPC certification, and 12-inch rough-in, it is clearly targeting tight alcoves where side clearance is the limiting factor and where code-driven efficiency and certification are priorities.
Key specifications from the listing:
- Configuration: Two-piece, elongated bowl, white ceramic, soft-close seat
- Width: 15.4 inches (overall depth not stated in the listing)
- Flush: 1.28 GPF, siphonic flush, side flush actuator
- Certification: cUPC certified
- Rough-in: 12 inches
- Bowl height, trapway size, and tank dimensions: Not provided — verify with seller
Strengths: A 15.4-inch width is notably slim, which can help when the toilet sits between a vanity and a side wall or in a water closet with minimal shoulder room. The 1.28 GPF siphonic flush aligns with current efficiency standards and is commonly required or preferred for WaterSense and local code contexts; siphonic action is generally quieter than pressure-assisted systems and is familiar to most installers. cUPC certification indicates the model is listed as meeting applicable plumbing standards, which is useful for permitting and inspection. The side flush lever is a simple, intuitive control that many households prefer over top-mounted push buttons, especially when the toilet is tucked beside cabinetry. Two-piece construction keeps the tank and bowl separate for easier carrying and positioning in tight spaces.
Trade-offs and what to check: Width alone does not determine comfort or fit. Verify overall depth from the finished wall to the front of the bowl, bowl height, and seat dimensions to ensure the elongated bowl still allows adequate clearance to the door or shower curb. Confirm the location and throw of the side handle to avoid interference with a nearby vanity or wall. The data does not specify bowl height, trapway diameter, or whether the base is skirted or exposed; if easy cleaning of the exterior is important, check whether the trapway is exposed or concealed. Also verify what is included in the box, such as wax ring, bolts, and supply line, and whether the soft-close seat is quick-release.
Who it is best for: Small bathrooms where width is the critical constraint, and buyers want a certified, water-efficient 1.28 GPF toilet with a familiar side flush and elongated comfort on a straightforward 12-inch rough-in.
Who should skip it: Households that need confirmed chair-height seating, a specific overall depth, or a fully skirted base should verify those details first. If you prefer dual-flush flexibility or a pressure-assisted flush for high-demand use, this single-volume siphonic 1.28 GPF model may not match your priorities.
Check this Compact 15.4 Inch Two-Piece Toilet on Amazon
4. DeerValley Compact One-Piece Toilet for Small Bathrooms, Soft-Close Seat, 12-Inch Rough-In, Dual Flush 0.8/1.28 GPF, White
This DeerValley one-piece pairs a compact elongated footprint with a low-volume dual flush. The listing title specifies a soft-close seat, a 12-inch rough-in, a dual flush at 0.8/1.28 GPF and a white finish. Dropping to 0.8 gallons on the light flush makes it one of the lowest-volume gravity-style options in the guide.
Key specifications from the listing:
- Configuration: One-piece, compact design for small bathrooms, white finish
- Flush: Dual flush, 0.8 / 1.28 GPF
- Seat: Soft-close seat
- Rough-in: 12 inches
- Dimensions, bowl height, trapway and bowl shape details: not provided in the listing title, so confirm them on the spec sheet before ordering
Strengths: A one-piece body provides a smooth exterior without a tank-to-bowl seam, which simplifies wiping down the outside, an advantage in compact rooms where the toilet is close to a vanity. Dual flush adds a choice between a lower volume for liquid waste and a higher volume for solid waste, which suits households focused on water savings. The 0.8 GPF light flush is the lowest volume stated among the gravity-fed picks here.
Trade-offs and what to check: The listing does not state overall depth, width or bowl height, so confirm depth to verify true compact status and check whether the bowl is elongated, since the title does not say so. Also confirm whether the base is skirted or partially exposed, as that affects cleaning. One-piece toilets are heavy and awkward to angle into a tight alcove, so confirm weight and whether the box will pass through doorways and turns. Verify warranty terms and the availability of replacement fill and flush valves.
Who it is best for: Buyers who want a one-piece look, a 12-inch rough-in and a very low light-flush volume without moving into name-brand pricing.
Who should skip it: If you need documented depth, bowl height or an elongated bowl for a strict space plan, wait until you have confirmed the full spec sheet. Those who prefer single-flush simplicity or a lighter two-piece for easier carrying may want a different option.
Check the DeerValley Rimless One-Piece on Amazon
5. DeerValley Compact One-Piece Toilet 1.28 GPF Single Flush Fully Skirted Bowl with Soft-Close Seat White Space-Saving Elongated Toilets for Small Bathrooms
This DeerValley model trades dual-flush choice for single-flush simplicity and adds a fully skirted bowl. The title notes 1.28 GPF single flush, a fully skirted base, soft-close seat, and a space-saving elongated design for small bathrooms. A skirted base hides the trapway and creates a smooth side profile that many owners find faster to keep clean.
Key specifications from the listing:
- Configuration: One-piece, elongated, fully skirted bowl, white finish
- Flush: 1.28 GPF single flush
- Seat: Soft-close seat
- Footprint: Listed as space-saving
- Rough-in, dimensions, bowl height, and trapway details: Not stated in the listing — verify with seller
Strengths: A single-flush 1.28 GPF system keeps operation straightforward: one lever or button with a consistent water volume, which some households prefer over choosing between two volumes. Fully skirted sides conceal the curves of the trapway, reducing dust-catching contours and making side cleaning a matter of wiping a flat surface, a practical benefit when the toilet is wedged beside a vanity or wall. The one-piece form continues that low-crevice theme by eliminating the joint between tank and bowl. Water use at 1.28 GPF aligns with efficiency expectations for new installations and can help with utility and code considerations where applicable.
Trade-offs and what to check: Confirm rough-in, overall depth, and width to ensure the unit fits your alcove and still provides code-required clearances in front and to the sides. Verify bowl height to determine whether it is standard or comfort height, and check the flush actuator location to ensure it will not interfere with a wall or cabinet. With a fully skirted base, installation access can be tighter; verify the mounting method and whether the skirt includes accessible bolt caps or requires a specific anchoring approach. Also confirm whether the soft-close seat is quick-release, and review warranty and parts availability for the flush valve and fill valve.
Who it is best for: Buyers who want the clean-line look of a fully skirted one-piece with simple, efficient 1.28 GPF operation and minimal exterior detailing to clean in a compact bathroom.
Who should skip it: Households that prefer dual-flush flexibility or need verified bowl height and depth for a strict layout should confirm specs first. If you need a two-piece for easier carrying through narrow passages, this one-piece skirted model may be harder to maneuver.
Check this DeerValley Fully Skirted One-Piece on Amazon
6. Gerber Maxwell Select Elongated Two-Piece Dual-Flush Toilet, White
The Gerber Maxwell Select presents another two-piece elongated option with dual-flush operation and an emphasis on cleaning and installation convenience. The title highlights a water-saving dual flush, a seat that lifts off in seconds, and a tool-free install kit that includes a wax ring.
Key specifications from the listing:
- Configuration: Two-piece, elongated bowl, white finish
- Flush: Dual-flush, water-saving (specific GPF volumes not stated in the listing)
- Cleaning feature: Seat lifts off in seconds
- Installation: Tool-free install kit with wax ring included
- Rough-in, dimensions, bowl height, and trapway details: Not provided — verify with seller
Strengths: Dual flush gives households control over water use without changing behavior drastically; a light flush for liquid waste and a full flush when needed can add up in a frequently used small bath. The lift-off seat again addresses the reality of cleaning a toilet that sits close to adjoining fixtures; quick removal makes sanitizing the hinge zone and the area under the seat more thorough. The inclusion of a wax ring and a tool-free oriented kit can save a separate purchase and may streamline installation, particularly for a homeowner working with a plumber or handling a straightforward replacement on a 12-inch rough-in. As a two-piece, the Maxwell Select is typically easier to transport and position than a one-piece, which is helpful in older homes with tight turns.
Trade-offs and what to check: The data does not specify GPF values, bowl height, overall depth, width, or rough-in. For a small bathroom, those numbers determine whether an elongated bowl will still allow comfortable use and meet clearance requirements. Verify whether this Maxwell Select listing is the compact variant or the standard-depth version, since Gerber offers multiple footprints and the title here does not state compact depth. Confirm actuator type and location, and whether both flush volumes meet your local efficiency expectations. Also check whether the soft-close seat is standard or an optional upgrade in this SKU, and review what else is included beyond the wax ring.
Who it is best for: Buyers who want a two-piece elongated toilet with dual-flush flexibility and quick-release seat convenience, plus an included wax ring and tool-free install support, and who prefer a familiar brand with broad parts availability.
Who should skip it: If your layout demands a verified compact depth or a specific bowl height, confirm those dimensions before ordering. Households that prioritize a fully skirted one-piece exterior for minimal cleaning crevices should compare skirted one-piece models instead.
Check the Gerber Maxwell Select on Amazon
7. 24.8″ Depth Compact Toilet For Small Bathrooms, Los Flexi 18″ Tall Height One Piece Toilet, Standard Elongated Bowl, Soft Close Seat, Dual Flush 1.0/1.28 GPF, One Hole Rimless Swirl Tech, 12″ Rough-In
The Los Flexi model stands out on the spec sheet for two reasons: a very short 24.8-inch depth and an 18-inch tall bowl height. The title also notes a dual flush at 1.0/1.28 GPF, rimless design, one-hole configuration, and swirl flushing technology with a 12-inch rough-in. In a truly small bathroom, that shallow depth can be the difference between a comfortable layout and a door that cannot open fully.
Key specifications from the listing:
- Configuration: One-piece, standard elongated bowl, soft-close seat, one-hole design
- Overall depth: 24.8 inches
- Bowl height: 18 inches tall
- Flush: Dual flush 1.0 / 1.28 GPF; rimless bowl with swirl technology
- Rough-in: 12 inches
- Width, trapway size, and tank details: Not provided — verify with seller. The depth, height and flush figures above come from the listing title; no maker spec sheet was found to confirm them
Strengths: At 24.8 inches deep, this is among the shallowest elongated options on this list, which directly addresses front-to-back clearance, a common pinch point in powder rooms and small primary baths. The 18-inch bowl height is taller than standard and higher than typical chair-height targets around 17 inches; many adults find the higher seat easier for sitting and standing, which can be especially relevant in a compact room where grab bar placement or wall support is limited. Dual flush at 1.0/1.28 GPF is highly water-efficient while still offering a stronger 1.28-gallon flush when needed. A rimless bowl combined with a swirl flush is intended to rinse the bowl surface more evenly and reduce hidden channels, which can simplify interior cleaning.
Trade-offs and what to check: A taller bowl does not suit everyone. Verify comfort for shorter users and children, and consider whether the higher seat changes the ergonomic relationship to a small bath’s floor space and any existing toilet flange height. Although the depth appears in the listing title, it is a seller figure that could not be matched to a maker spec sheet, and width and tank height affect side clearance and sightlines, so confirm those measurements. One-piece, 18-inch tall models tend to be heavier; plan installation help and confirm that the box dimensions will navigate your hallway and doorway. As with any low-volume flush, review whether the swirl system is engineered for bulk waste evacuation in your home’s drain configuration, and check what is included for installation hardware and whether the soft-close seat is quick-release.
Who it is best for: Buyers who need maximum depth savings without giving up an elongated bowl and who prefer an extra-tall, comfort-oriented seat with efficient dual-flush options on a 12-inch rough-in.
Who should skip it: Households that need a lower seat height for children or shorter adults, or those who require confirmed width and trapway details before ordering, should verify the full spec sheet. If you want a pressure-assisted flush rather than a gravity-fed swirl system, compare other technologies.
Check the Los Flexi 24.8″ Compact Toilet on Amazon
8. Casta Diva One Piece Toilet with 17.2″ ADA Comfort Chair Height Seat,Silver | Compact Modern Toilet for Bathroom,Elongated Bowl,1.0GPF Button & Foot Kick Flush, Air Pressure Assisted Flush, 12” Rough-in
The Casta Diva one-piece takes a different approach with an air pressure-assisted flush and dual activation: a 1.0 GPF push button plus a foot-kick flush. The title also notes a 17.2-inch ADA comfort chair height, compact modern styling with an elongated bowl, and a 12-inch rough-in. Pressure-assisted flushing is less common in residential one-piece compacts and is chosen for its vigorous evacuation and potential water savings at 1.0 gallon per flush.
Key specifications from the listing:
- Configuration: One-piece, compact elongated bowl, modern styling, silver accent as listed
- Seat height: 17.2 inches ADA comfort chair height
- Flush system: Air pressure assisted flush
- Flush activation: Button flush plus foot-kick flush
- Flush volume: 1.0 GPF as listed with button
- Rough-in: 12 inches
- Dimensions, width, and trapway details: Not provided in the listing title. Seller listings for other colors of this model cite roughly 26.9 in deep by 15 in wide, but no maker spec sheet was found, so verify with the seller
Strengths: An air pressure-assisted system can provide strong bowl clearing with less water per flush, and 1.0 GPF is at the efficient end of the range for residential toilets. The foot-kick option adds a hands-free alternative that some households appreciate for hygiene, and it can be useful in a compact bathroom where the flush actuator needs to be operable without leaning over the tank. Chair height at 17.2 inches is in the comfort-height window many adults prefer, aiming to reduce strain when sitting and standing. One-piece construction keeps the exterior smooth, and the elongated bowl retains seating comfort in a compact footprint. The modern detailing with a silver accent may appeal where the toilet is visible from the doorway and contributes to the overall aesthetic.
Trade-offs and what to check: Pressure-assisted toilets sound and feel different from gravity-fed siphonic models; they are often louder and have a distinct flush character, which matters if the bathroom shares a wall with a bedroom. Confirm noise expectations and whether the pressure vessel is integrated or requires specific supply pressure and shut-off conditions. Verify overall depth and width to confirm true compact sizing in your space, and check whether the foot-kick mechanism requires additional floor clearance or a specific baseboard gap. Also verify maintenance: pressure-assisted internals have different service parts than standard gravity systems, so review parts availability and warranty. Finally, confirm whether the seat is soft-close and quick-release, and what color and material the silver accent refers to so it coordinates with your fixtures.
Who it is best for: Buyers who want a compact elongated one-piece with chair-height seating, very low water use per flush, and hands-free flushing versatility, and who are comfortable with the louder, more forceful character of air pressure-assisted operation on a 12-inch rough-in.
Who should skip it: Those who prioritize the quietest possible flush, need verified overall dimensions before committing, or prefer standard gravity-fed siphonic systems with widely interchangeable parts should review the spec sheet carefully and compare with quieter gravity models.
Check the Casta Diva One-Piece Toilet on Amazon
More Compact Elongated Toilets Worth Considering
The eight models above lean toward value-focused brands. If you would rather buy from a long-established plumbing manufacturer with wide parts availability through local supply houses, these name-brand and specialty compact elongated toilets are worth shortlisting. As with the main list, the details below come from the listing information. Confirm depth, bowl height, and rough-in on the manufacturer’s spec sheet before ordering.
KOHLER Santa Rosa One-Piece Compact Elongated (30810) — Best Name-Brand One-Piece
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The Santa Rosa is one of the best-known compact elongated toilets on the market, and this one-piece 30810 version combines the line’s space-saving elongated bowl with a 1.28 GPF flush and Kohler’s Revolution 360 swirl flushing technology, according to the listing. The swirl design is meant to rinse the whole bowl surface with each flush, and the one-piece body avoids the tank-to-bowl seam that collects grime on two-piece models.
The model number at the end of a Kohler listing is a finish and configuration code, so check the color and trip-lever side on the version you open. That detail matters in a small bathroom: if a wall or vanity sits tight against one side of the tank, the opposite lever position may be easier to reach. It sits in the mid-range, between the budget models above and Kohler’s premium lines.
Pros:
- Compact elongated bowl from a widely stocked brand
- One-piece body and swirl flush simplify cleaning
Cons:
- Trip-lever side must suit your layout
- Confirm depth, bowl height, and seat inclusion on the spec sheet
American Standard Compact Cadet 3 One-Piece — Best for Elongated Comfort with Slow-Close Seat Included
American Standard’s Compact Cadet 3 is built around the idea of fitting an elongated bowl into a footprint closer to a round-front toilet. The listing describes it as a one-piece toilet with an elongated front and a slow-close seat in the box, so you avoid buying a separate seat. The Cadet 3 name refers to the line’s 3-inch flush valve, a wider-than-traditional valve meant to move water into the bowl quickly for a strong gravity flush.
It suits buyers replacing an older round toilet who want more seating comfort without moving the flange. It is not the shallowest option in this guide, so measure carefully if your door swing or shower curb is tight. Expect a mid-range price for this style.
Pros:
- Slow-close seat included
- 3-inch flush valve design from a widely serviced brand
Cons:
- Not the shallowest compact model available
- Verify GPF rating, rough-in, and bowl height for this SKU
KOHLER Reach One-Piece Dual-Flush Compact Elongated — Best Dual-Flush Name Brand
The Kohler Reach is the dual-flush option among the name-brand picks. According to the listing, it is a one-piece toilet with a compact elongated bowl, dual-flush operation, and a slow-close seat included, in white. The dual flush gives you a reduced-volume option for liquid waste and a full flush when needed. The smooth one-piece form fits a modern small bathroom where the toilet is in plain view.
The price buys brand support, design, and convenience rather than extra footprint savings. Buyers whose main goal is the shortest possible depth may get more from the dedicated short-depth models above. If you want a design-forward compact one-piece backed by a major manufacturer, the Reach belongs on the shortlist.
Pros:
- Dual flush with slow-close seat included
- Clean one-piece styling for modern bathrooms
Cons:
- Costs more than budget one-pieces with similar footprints
- Confirm exact depth, bowl height, and flush volumes before buying
KOHLER San Souci K-5172 One-Piece Compact Elongated — Best Comfort-Height Name Brand
- Size: about 27-3/4 in deep x 16-3/8 in wide x 25-5/16 in high
- Bowl: compact elongated, Comfort Height (chair height), ADA compliant
- Flush: 1.28 GPF AquaPiston flush; WaterSense certified
- Trapway: 2-1/8 in fully glazed, concealed behind skirted sides
- Rough-in: 12 in; this -HC version adds a hidden cord path for a bidet seat
KOHLER says the San Souci’s compact elongated bowl takes up about the same space as a round-front bowl, while the low 25-5/16 in profile keeps it from crowding a small powder room visually. The concealed trapway and low-profile bolt caps leave smooth sides to wipe. It is deeper than the HOROW T0338W, so measure door swing first.
Pros:
- Chair height with a compact elongated bowl
- Concealed trapway for easy cleaning
- Widely stocked KOHLER parts
Cons:
- Premium price tier
- About 1 in deeper than the HOROW T0338W
- Seat may be sold separately on some variants; check the listing
Skip it if… your door clearance needs a toilet under 27 in deep.
SANIFLO Sanicompact 4C — Best When There Is No Floor Drain
- Size: 18-1/4 in deep x 14-1/2 in wide x 16-1/2 in high (maker figures)
- Flush: dual 1.0 / 1.28 GPF with a built-in 0.5 HP macerator on 120V
- Install: up to 9 ft below the sewer line or 120 ft from a soil stack; no vent stack required
- Extras: 1-1/4 in sink inlet; soft-close seat included
The SANIFLO Sanicompact 4C is a tankless, self-contained macerating toilet, so it suits basements, closets and attic rooms where a standard toilet cannot connect to a gravity drain. At 18-1/4 in deep it is far shallower than any tank toilet on this list. Bowl height is about 16-1/2 in without the seat.
Pros:
- Shallowest option here by about 6 in
- Works where there is no gravity drain
- Sink can drain into the same unit
Cons:
- Needs an electrical outlet and makes pump noise each flush
- Much higher price tier than gravity toilets
Skip it if… you already have a standard 12 in rough-in drain; a gravity toilet is cheaper and simpler.
HOROW HR-ST076WD One-Piece — Also Consider for Very Narrow Alcoves
Best for tight side clearance · 14 in wide · 28.75 in deep · 16-3/4 in seat height · dual 1.1/1.6 GPF · 12 in rough-in (a 10 in version is sold separately). Trade-off: it saves width, not depth, so it is deeper than most picks above.
SOTOMO Compact One-Piece Elongated Toilet (27.75 in Deep) — Best Budget One-Piece with a Published MaP Score
The SOTOMO is a good fit for a small primary bath or guest bath where you want a one-piece with dual flush and a published flush-performance number, without paying name-brand money. It lands near the middle of this guide on depth, so it suits rooms that have a little margin in front of the bowl rather than a razor-thin one.
- Size: 27.75 in deep x 15.4 in wide x 27.13 in high (per the listing title)
- Configuration: one-piece, elongated bowl, soft-closing seat
- Flush: dual flush 1.1 / 1.6 GPF with a listed MaP score of 1,000 g
- Rough-in: 12 in
Pros:
- Published MaP figure gives you a flush-performance number to compare
- Narrow 15.4 in width suits tight side clearances
- Dual flush and soft-close seat in one box
Cons:
- About 1 in deeper than the HOROW T0338W and 3 in deeper than the Los Flexi
- Seat height, trapway size, and warranty terms are not in the title, so confirm them on the listing
Skip it if… your front clearance is already near the code minimum; the Los Flexi or HOROW T0338W project less.
TOTO Entrada Two-Piece Elongated 1.28 GPF (CST244EF) — Best Name-Brand Two-Piece for a Proven Flush
The TOTO Entrada is a plain, widely serviced two-piece that shows up on small-bathroom shortlists because it pairs a large flush valve with a modest footprint. It is the pick for owners who value parts availability and a conventional gravity flush over the shortest possible depth, and its separate tank and bowl are easier to carry up stairs.
- Size: about 28-5/8 in deep; bowl rim height about 16-1/8 in (TOTO spec sheet)
- Flush: 1.28 GPF E-Max gravity flush with a 3 in flush valve
- Trapway: 2-1/8 in; rough-in 12 in
- Bowl: elongated, universal height, ADA compliant; WaterSense listed
- Seat is not included
Pros:
- Large flush valve and big trapway for a strong gravity flush
- Parts and service are easy to find through plumbing suppliers
- Two-piece build is simpler to maneuver into tight rooms
Cons:
- Seat is sold separately, so budget for an elongated seat
- About 2 in deeper than the HOROW T0338W, and the tank-to-bowl seam needs periodic cleaning
Skip it if… you need under 27 in of depth or want a seamless skirted exterior.
Compact Elongated Toilets Compared
Compact elongated models balance seating comfort with a shorter projection into the room. The table below summarizes verified details from manufacturer listings and titles. Where a listing does not publish a specification, it is marked “see maker page” so you can confirm before you buy.
| Toilet | Configuration | Dimensions & Height | Flush System & Water Use | Rough-In | Key Details From Listing |
|---|---|---|---|---|---|
| HOROW T0338W Compact One Piece Toilet | One-piece, elongated bowl, skirted / seamless exterior | 26.6″D x 15″W x 26″H; 17.3″ seat height (chair height / ADA comfort) | Siphon flushing; dual flush 1.1 / 1.6 GPF; 2″ fully glazed trapway | 12″ rough-in (10″ version also offered, choose before installation) | Soft-close PP seat with screw-fixed mounting; large side access for floor mounting; lifetime after-sales support, 1-year limited warranty |
| Gerber Viper Force Compact Elongated Two-Piece | Two-piece, compact elongated bowl | About 27.75″ deep for the compact Viper Force (GRS48350) per retailers; sources differ slightly | Described as strong flush; Gerber’s catalog lists 1.28 GPF gravity flush for GRS48350 | 12″ rough-in per Gerber’s catalog for GRS48350 | Soft-close seat that lifts off in seconds for cleaning; tool-free install kit included; space-saving design |
| Compact 15.4 Inch Elongated Two Piece Toilet | Two-piece, elongated bowl, 15.4″ width noted | 15.4″ wide (per title); overall depth and bowl height: see maker page | Siphonic flush; 1.28 GPF; cUPC certified | 12″ rough-in | Side flush handle; soft-close seat; white ceramic; see maker page for skirted vs exposed trapway |
| DeerValley Compact One-Piece, Rimless Bowl | One-piece, modern elongated bowl, rimless | About 24.4″ long per the maker’s page for the same-titled DV-1F0369 | Dual flush; 0.94 / 1.24 GPF per the maker’s page for DV-1F0369 | 12″ rough-in | Rimless bowl design for hygiene; soft-close seat; quiet operation described; space-saving white design |
| DeerValley Compact One-Piece, Single Flush Fully Skirted | One-piece, elongated bowl, fully skirted | See maker page for overall depth and bowl height | Single flush; 1.28 GPF | Typically 12″ for this line; confirm with the maker | Fully skirted bowl for easy exterior cleaning; soft-close seat; white space-saving design |
| Gerber Maxwell Select Elongated Two-Piece Dual-Flush | Two-piece, elongated bowl, dual-flush | See maker page for overall depth and bowl height | Dual-flush; water-saving; see maker page for GPF | See maker page | Soft-close seat that lifts off in seconds; tool-free install kit with wax ring included |
| Los Flexi 24.8″ Depth Compact One Piece Toilet | One-piece, standard elongated bowl, rimless | 24.8″ depth; 18″ tall height (bowl/seat height) | Dual flush 1.0 / 1.28 GPF; rimless Swirl Tech flushing (one-hole design) | 12″ rough-in | Soft-close seat; extra-tall height; compact projection for tight layouts |
| Casta Diva One Piece Toilet, ADA Comfort Height | One-piece, elongated bowl, silver accent | 17.2″ ADA comfort chair height seat; overall depth: see maker page | 1.0 GPF; button + foot kick flush; air pressure assisted flush | 12″ rough-in | Compact modern design; see maker page for trapway glazing and seat material |
Takeaway for shoppers comparing on space: the HOROW T0338W and the Los Flexi publish overall depth, which lets you calculate clearance to a door or shower. The Gerber and DeerValley listings emphasize cleaning and installation features but require you to open the specification sheet to confirm depth, height, and water use. For any model marked “see maker page”, verify the spec sheet, installation manual, and certification listing before ordering.
Best Compact Elongated Toilets by Budget
| Tier | Picks | Typical depth | What you get |
|---|---|---|---|
| Budget | HOROW T0338W, DeerValley one-pieces | Often 24-27 in | Dual flush, soft-close seat, skirted sides |
| Mid-range | American Standard Compact Cadet 3, KOHLER Santa Rosa, KOHLER Reach | About 28 in | Name-brand parts, slow-close seat |
| Premium | KOHLER San Souci, SANIFLO Sanicompact 4C | 18.25-28 in | Concealed trapways or macerating install |
Best compact elongated toilet under $300
- HOROW T0338W — 26.6 in deep · 15 in wide · 17.3 in chair height · 1.1/1.6 GPF
- DeerValley Compact One-Piece (0.8/1.28 GPF) — one-piece · dual flush · soft-close seat · 12 in rough-in
- DeerValley Compact One-Piece (fully skirted) — 1.28 GPF · soft-close seat · 12 in rough-in
What to expect at this tier:
- Short depths, often 24-27 in
- Soft-close seats and wax rings often included
- Thinner spec sheets; confirm rough-in and bowl height before ordering
- Smaller service networks than KOHLER or American Standard
Best compact elongated toilet from $300 to $700
- American Standard Compact Cadet 3 — one-piece · slow-close seat included · elongated front
- KOHLER Santa Rosa 30810 — one-piece · compact elongated · 1.28 GPF
- KOHLER Reach — one-piece · dual flush · compact elongated
What to expect at this tier:
- Full maker spec sheets with MaP or flush data
- Replacement flush and fill valves stocked at hardware stores
- Depths closer to 28 in, so check door swing
Best premium compact elongated toilet
- KOHLER San Souci K-5172 — 27-3/4 in deep · Comfort Height · 1.28 GPF · concealed trapway
- SANIFLO Sanicompact 4C — 18-1/4 in deep · macerating · 1.0/1.28 GPF
What to expect at this tier:
- Concealed trapways and low-profile bolt caps for wipe-clean sides
- Better finish and glaze options, including colors
- Specialty installs, such as macerating units for basements
Best Pick by Need
Use these research-based matchups to narrow the list to your bathroom and priorities. Each recommendation is drawn from manufacturer specifications and recurring themes in owner feedback, not from assumptions about availability or price.
1. Best for overall small-bathroom fit with ADA comfort: HOROW T0338W
HOROW T0338W Compact One Piece Toilet is the most completely specified option for tight spaces. At 26.6 inches deep it projects less than many standard elongated toilets, while retaining an elongated seat. The 17.3-inch seat height provides chair-height ease for many adults and seniors, and the choice of 10-inch or 12-inch rough-in helps when replacing an older toilet without moving the flange. The seamless one-piece skirted exterior also reduces exterior crevices to wipe. Choose this if you want published dimensions, dual-flush water savings, and a soft-close seat with documented support.
2. Best for easiest cleaning routine: Gerber Viper Force or Gerber Maxwell Select
Both Gerber Viper Force Compact Elongated Two-Piece and Gerber Maxwell Select Elongated Two-Piece Dual-Flush highlight a seat that lifts off in seconds without tools, which is a practical convenience for cleaning hinge areas and the rim. Two-piece construction also makes the tank and bowl easier to carry up stairs and through narrow doorways during installation. The Maxwell Select adds a dual-flush water-saving option and includes a wax ring in its tool-free kit. Pick this pairing if quick, thorough cleaning and straightforward install hardware are your top criteria, and check the spec sheet for exact depth and height to confirm clearance.
3. Best for ultra-narrow width on a tight layout: Compact 15.4 Inch Elongated Two Piece Toilet
Compact 15.4 Inch Elongated Two Piece Toilet calls out a 15.4-inch width and a 1.28 GPF siphonic flush with cUPC certification. In very small powder rooms where side wall clearance or a pedestal sink competes for space, a narrower tank and bowl profile can be more important than overall depth alone. The side-mounted flush handle also keeps reach simple. Consider this when your layout limits side clearance more than front-to-back projection, and confirm bowl height and trapway details in the listing.
4. Best for modern hygiene and bowl cleanliness: DeerValley Rimless One-Piece
DeerValley Compact One-Piece Toilet (Rimless Bowl) uses a rimless bowl that eliminates the underside rim channel where mineral buildup can collect. Manufacturer information on rimless designs often notes more complete bowl rinse and easier brushing. Combined with dual flush and a soft-close seat in a compact one-piece form, it suits contemporary small baths where a clean interior and quiet operation are priorities. Verify GPF and whether the model is fully skirted or partially skirted for exterior cleaning.
5. Best for simple operation and fully skirted exterior: DeerValley Single Flush Fully Skirted
DeerValley Compact One-Piece Single Flush Fully Skirted focuses on simplicity: a single 1.28 GPF flush without dual-flush buttons to learn, paired with a fully skirted bowl that conceals the trapway for a smooth exterior. Single-flush systems can reduce user error and are often described as straightforward to maintain. This is a good match if you prefer one consistent flush volume, want the easiest exterior wipe-down, and do not need a pressure-assisted system. Confirm rough-in, height, and water supply location against your existing footprint.
6. Best for tight depth with extra-tall seating: Los Flexi 24.8″ Depth Compact
Los Flexi 24.8″ Depth Compact Toilet states a 24.8-inch depth in its listing title, the shortest projection among the options whose listings state a depth, which helps maintain required clearance in front of the bowl in compact bathrooms. It pairs that with an 18-inch tall height, taller than standard chair height, which many taller adults or users with knee discomfort prefer. The rimless Swirl Tech single-hole design and dual flush 1.0 / 1.28 GPF aim for bowl wash efficiency at low water use. Check that the extra height works with your vanity and that you have comfortable thigh support for all household members.
7. Best for low water use with pressure-assisted performance: Casta Diva One Piece with Foot-Kick Flush
Casta Diva One Piece Toilet is distinct for its 1.0 GPF air pressure assisted flush and dual activation: top button plus foot-kick lever. Pressure-assisted systems use air pressure to drive water more forcefully, which can help waste clearance at very low water volumes. The 17.2-inch ADA comfort height keeps seating accessible. Consider this if maximizing water savings is essential and you prefer a hands-free flush option, but confirm noise level expectations, water supply pressure requirements, and service access for the pressure vessel in the spec sheet.
How to Measure Your Bathroom for a Compact Elongated Toilet
The most common reason a compact toilet disappoints is not the flush. It is a fit problem discovered after delivery. Five measurements, taken before you shortlist models, prevent most of those surprises.
- Rough-in: Measure from the finished wall, not the baseboard, to the center of the closet bolts that hold the current toilet down. Most homes are 12 inches, but 10-inch and 14-inch rough-ins exist, especially in older buildings and condos.
- Available depth: Measure from the wall behind the toilet to the nearest obstruction in front of it, such as a door in its swing path, a vanity, a tub, or a shower curb. Subtract the toilet’s overall depth to see how much clear floor space remains.
- Side clearance: Measure from the center of the flange to the nearest side wall, vanity, or tub edge on both sides.
- Supply line position: Note the height and side of the water shutoff valve. Fully skirted and one-piece models sometimes need the supply to come from a particular side or height.
- Delivery path: Measure doorways, stair turns, and hallway corners. One-piece toilets ship in large, heavy boxes that do not tilt as easily as a two-piece tank and bowl.
Common clearance guidelines
Plumbing codes set minimum spacing around a toilet, and they differ slightly depending on which code your area follows. The figures below are the commonly cited minimums. Your local building department has the final word, especially for remodels that need a permit.
| Measurement | International Residential Code (IRC) | Uniform Plumbing Code (UPC) | ADA guidance (accessible baths) |
|---|---|---|---|
| Center of toilet to side wall or obstruction | 15 in minimum | 15 in minimum | 16–18 in from the side wall |
| Clear space in front of the bowl | 21 in minimum | 24 in minimum | Larger clear floor space required |
| Center-to-center with an adjacent toilet or bidet | 30 in minimum | 30 in minimum | Not applicable |
| Seat height | Not specified | Not specified | 17–19 in to top of seat |
This is where a compact elongated bowl earns its place. A standard elongated toilet often extends about two inches farther from the wall than a round-front bowl, and in a small bathroom those two inches can be the difference between meeting the front-clearance minimum and falling short. Compact elongated designs usually recover that space by using a slimmer, shallower tank while keeping the longer seating surface. Compare the overall depth figure on each spec sheet rather than relying on the word “compact” in the product name. Two toilets marketed as compact can differ by several inches.
Compact Elongated Toilets and Bathrooms in 2026: How Much Room You Need
Whether a compact elongated toilet works in your bathroom comes down to one sum: the toilet’s overall depth plus the clear floor space your code requires in front of the bowl. Add the two numbers and compare the total with the distance from the wall behind the toilet to the nearest door, vanity, or tub edge.
The table below does that sum for the toilets in this guide using the two commonly cited front-clearance minimums, 21 inches (IRC) and 24 inches (UPC). Confirm which code your area follows before you plan the layout.
| Toilet | Overall depth | Wall-to-obstruction minimum with 21 in clearance | With 24 in clearance |
|---|---|---|---|
| SANIFLO Sanicompact 4C | 18-1/4 in | 39-1/4 in | 42-1/4 in |
| Los Flexi 24.8″ Depth Compact | 24.8 in | 45.8 in | 48.8 in |
| HOROW T0338W | 26.6 in | 47.6 in | 50.6 in |
| SOTOMO Compact One-Piece | 27.75 in | 48.75 in | 51.75 in |
| KOHLER San Souci K-5172 | 27-3/4 in | 48.75 in | 51.75 in |
| TOTO Entrada CST244EF | 28-5/8 in | 49.6 in | 52.6 in |
| HOROW HR-ST076WD | 28.75 in | 49.75 in | 52.75 in |
Read the table as a floor, not a target. If the distance in your room is within an inch or two of the number, pick the shallower model, because baseboard, a door casing, or a thick tank lid can eat that margin. Half baths and powder rooms are where the 24.8 in and 26.6 in models earn their place; a room with a few extra inches can take any of the deeper name-brand options.
Side space matters as much as depth. Most picks here are between 14 and 16.4 inches wide, and code asks for 15 inches from the toilet’s centerline to a side wall or fixture, so measure from the flange center rather than the edge of the bowl.
Compact Elongated vs. Other Space-Saving Toilet Types
A compact elongated floor-mounted toilet is the right answer for most small bathrooms, but not every one. When the room is extremely tight, oddly shaped, or far from a drain, another design may fit better. Here is how the main options compare.
| Type | How it saves space | Best for | Main trade-off |
|---|---|---|---|
| Compact elongated (floor-mount) | Slimmer tank keeps overall depth close to a round bowl | Most powder rooms and small baths with a standard flange | Depth savings vary widely between models |
| Round-front bowl | Shorter bowl; usually the shallowest floor-mount format | The tightest front clearances, or children’s baths | Less seating room than an elongated bowl |
| Corner toilet | Triangular tank tucks into a corner | Awkward layouts where the wall-centered position does not work | Fewer model choices; plumbing location must suit a corner |
| Wall-hung | Tank and carrier hide inside the wall; bowl floats above the floor | Remodels where opening the wall is already planned | Needs an in-wall carrier and a suitable wall cavity; higher installed cost |
| Macerating (upflush) | Grinds and pumps waste through small piping | Basements and additions with no gravity drain nearby | Needs an electrical outlet; pump noise and maintenance |
For a typical replacement where the flange is already in place, a compact elongated floor-mount toilet is usually the simplest and most affordable route. Wall-hung models can save several inches of depth and make floor cleaning easy, but they make the most sense when the wall is already open. Macerating systems solve a different problem altogether, since they put a toilet where gravity plumbing cannot reach, and they are worth considering only when conventional drainage is not an option.
What MaP scores tell you about flush performance
Several listings, including the HOROW T0338W, quote a MaP figure. MaP (Maximum Performance) scoring reports how many grams of simulated waste a toilet clears in a single flush, with 1,000 grams as the top published score. WaterSense-labeled toilets must clear at least 350 grams. A higher score suggests better resistance to clogs. Trapway glazing, flush valve size, and your home’s drain slope also matter, so treat MaP as one useful comparison point rather than a guarantee.
Setup and Care Tips for Compact Elongated Toilets
Small bathrooms leave little margin for measurement or maintenance errors. These research-based steps help you avoid rework and keep the toilet performing as designed.
- Confirm rough-in before ordering. Measure from the finished wall (not baseboard) to the center of the flange bolts. Most compact models here are 12-inch rough-in; the HOROW line also offers 10-inch. A mismatch means the tank will not sit against the wall or the bowl will project too far. Check if an offset flange is permitted by local code if your existing rough-in is nonstandard.
- Map clearances. Measure overall depth, width, and height from the spec sheet and compare to code minimums and door swings. For a 26.6-inch deep model like the HOROW or a 24.8-inch deep model like the Los Flexi, sketch the bowl position to ensure at least the minimum front clearance and side clearance. Do not forget baseboard thickness and supply valve projection.
- Check supply and trapway access. One-piece skirted toilets look cleaner but can limit access to mounting bolts and the water connection. Look for models that note large side access openings (as HOROW does) or include tool-free kits (as the Gerber models do). Confirm whether the water supply is left-side standard and whether your existing valve height will hide behind the skirt.
- Plan the carry. One-piece toilets are heavier as a single unit; two-piece toilets split the load but require careful tank-to-bowl gasket seating. Measure stair turns and doorway widths, and keep the toilet upright. Read the install manual for bolt tightening sequence to avoid cracking the base.
- Set the wax ring correctly. Use the wax ring or wax-free seal included in the kit only if it matches your flange height. If the flange is below finished floor, you may need an extra-thick ring or flange spacer per the manufacturer. Do not stack two standard wax rings unless the instructions explicitly allow it. Keep the toilet level and do not overtighten.
- Calibrate dual-flush use. For 1.1 / 1.6 GPF and 1.0 / 1.28 GPF systems, hold the button or handle for the full actuation time noted in the manual for the light flush to work as intended. Partial presses can cause weak rinses that lead to repeat flushes, erasing water savings.
- Maintain rimless and skirted surfaces properly. For rimless bowls, brush the entire interior perimeter where water flows from the rimless channel; for skirted exteriors, use non-abrasive cleaners to protect the finish and wipe around the base sealant line. For pressure-assisted models, follow the specific descaling interval in the manual.
- Avoid common small-bath mistakes. Do not caulk the entire base to the floor; leave the rear uncaulked or use the method in your local code so a wax seal leak shows. Do not use drop-in tank cleaners that can degrade flappers and seals. Check the soft-close seat stop so the lid does not contact a wall or vanity when open.
FAQ
What is a compact elongated toilet, and will it still feel comfortable?
Compact elongated keeps the oval, elongated seat shape many adults find more comfortable than round, but shortens overall depth from the wall to the front of the bowl. Comfort depends on seat dimensions and bowl height more than total depth. Check the overall depth (for room clearance), seat opening length, and seat height. A model like the HOROW at 26.6 inches deep or the Los Flexi at 24.8 inches deep saves projection while retaining an elongated sitting area, whereas a standard elongated toilet often projects 28 to 30 inches or more.
Should I choose a one-piece or two-piece compact toilet for a small bathroom?
One-piece designs have a seamless, often skirted exterior with fewer crevices, which simplifies wiping and can look more streamlined in a tight space. They are heavier to move as one unit. Two-piece designs separate the tank and bowl for easier carrying and often make tank hardware replacement more straightforward; they have a seam between tank and bowl to keep clean. If ease of carrying through narrow halls or seat removal for cleaning is your priority, the Gerber two-piece models with lift-off seats are worth comparing. If a smooth exterior and minimal exterior joints matter more, a one-piece skirted DeerValley or HOROW may suit better.
What bowl height is best — standard, chair height, or extra-tall?
Chair height, often listed as ADA comfort height around 17 to 19 inches from floor to seat, is described by manufacturers as easier for sitting and standing for many adults. The HOROW lists 17.3 inches and the Casta Diva lists 17.2 inches; the Los Flexi lists 18 inches, which is extra-tall. Taller is not always better for every user — shorter occupants may find extra-tall models leave feet unsupported. Compare your current toilet height, the listed seat height (not bowl rim height alone), and who will use the bathroom most.
Is dual flush or single flush more reliable in a compact toilet?
Both can be reliable when the trapway and bowl wash are designed for the stated water volume. Dual flush gives a light option (for example 1.1 GPF or 1.0 GPF) and a full option (1.28 or 1.6 GPF) to save water, but it requires correct button use. Single flush uses the same volume each time, which some households find simpler. Also note the flush assist type: gravity siphon and rimless swirl are common, while the Casta Diva uses air pressure assistance to boost low-volume performance. Check water supply pressure requirements and noise expectations for pressure-assisted units.
What is the difference between skirted, fully skirted, and rimless?
Skirted and fully skirted refer to the outside of the bowl: the trapway is concealed behind a smooth covering, so there are no exposed curves to dust. Fully skirted typically means the covering extends to the floor on both sides. Rimless refers to the inside of the bowl: there is no underside rim channel, so water enters from the top edge in a way that is designed to rinse the entire bowl and leave fewer hidden surfaces. You can have a toilet that is both skirted outside and rimless inside, like several DeerValley and Los Flexi models described in their titles.
How do I know which rough-in and water connections I need?
Measure wall to bolt center for rough-in, confirm left or right water supply location, and note the supply valve height relative to the skirt. Most listings here state 12-inch rough-in; the HOROW also indicates a 10-inch option. If your measurement is 10 inches, 14 inches, or an older 11-inch, do not assume a 12-inch toilet will fit without an offset solution or a different model. Check the installation diagram for bolt pattern, supply centerline, and whether a standard wax ring is sufficient for your flange height.
Will a 1.0 or 1.28 GPF compact toilet clog more often?
Water volume is only one factor. Trapway diameter and glazing, bowl wash pattern, and drain line condition also affect clearance. The HOROW lists a fully glazed 2-inch trapway with siphon flushing to support waste removal at 1.1 / 1.6 GPF. The Compact 15.4 Inch model notes a siphonic 1.28 GPF flush with cUPC certification, which indicates it meets applicable plumbing code requirements. For low-volume 1.0 GPF systems, pressure-assisted models like the Casta Diva use air pressure to increase force. To reduce clog risk, verify trapway specs, avoid flushing non-flushable items, and ensure drain slope and venting meet code.
How do I keep a compact toilet clean without damaging the finish?
Follow the manufacturer cleaner guidance: use non-abrasive, non-acidic cleaners on the exterior skirt and soft-close seat, and a bowl cleaner compatible with the seal materials. For seats that lift off in seconds, such as the Gerber designs, remove the seat periodically to clean hinge posts. For rimless bowls, brush the entire upper interior where water flows. Avoid abrasive pads, bleach tablets in the tank, and harsh scrubbing on the trapway glaze. Check the seat mounting — screw-fixed seats as on the HOROW resist shifting, but over-tightening can damage the hinge.
How much space do I need around a compact elongated toilet?
Under the commonly cited code minimums, you need at least 15 inches from the center of the toilet to any side wall or fixture. In front of the bowl, the IRC requires at least 21 inches of clear space and the UPC requires 24 inches. Add the toilet’s overall depth to the front clearance to find the minimum distance from the back wall to the nearest obstruction, and confirm which code your area uses.
Can I replace a round toilet with a compact elongated one in the same spot?
Often, yes. That is exactly what compact elongated designs are for. Keep the same rough-in, then compare the new model’s overall depth with your current toilet’s depth. If the new toilet is no deeper, the front clearance stays the same. Check that the new base covers the old toilet’s footprint on the floor, or plan to patch or replace flooring where the old base sat.
What is a good MaP score for a small-bathroom toilet?
MaP scores run up to 1,000 grams, and WaterSense-labeled toilets must clear at least 350 grams. Many households are well served by a model in the upper part of that range, especially if a single toilet serves a busy home. Pair the score with a fully glazed trapway and an appropriate flush volume rather than judging on the number alone.
Will a standard elongated seat fit a compact elongated toilet?
Most compact elongated bowls accept a standard elongated seat, because the bowl opening keeps the elongated shape and only the overall depth is reduced. A few designs use a model-specific seat or hinge pattern, and skirted one-pieces sometimes need a particular hinge style. Many of the models in this guide include a soft-close seat, so check whether one is in the box before buying a replacement.
How deep is a compact elongated toilet?
Most are roughly 25 to 29 inches from the wall to the front of the bowl. In this guide, the gravity-flush range runs at about 24.8 inches for the Los Flexi (listing title) up to 28.75 inches for the HOROW HR-ST076WD, while a standard elongated toilet often projects 28 to 30 inches or more. The word compact is not regulated, so read the depth line on each spec sheet.
Are compact elongated toilets worth it, or should I buy a round toilet?
A compact elongated toilet is worth it when you want elongated seating comfort and your clearance is tight but not extreme. A round-front bowl is usually about two inches shallower, so choose it only when every inch counts. Both types use the same rough-in, so you can switch shapes without moving the flange.
Final Verdict
For small bathrooms where every inch matters, start with verified depth and height, not just bowl shape. If you want a clearly dimensioned, chair-height one-piece with dual-flush flexibility and easy exterior cleaning, the HOROW T0338W provides the most complete published footprint at 26.6 inches deep and 17.3-inch seat height with 1.1 / 1.6 GPF. When minimizing projection is the priority while retaining tall seating, the Los Flexi 24.8″ Compact stands out at 24.8 inches deep and 18 inches tall with 1.0 / 1.28 GPF rimless Swirl Tech. For cleaning ease and carry-in convenience, the two Gerber options with lift-off seats and tool-free kits are practical, while the DeerValley Rimless and DeerValley Fully Skirted pair modern interior hygiene with a streamlined exterior. If your goal is the lowest water use with a forceful flush and a hands-free option, consider the Casta Diva 1.0 GPF pressure-assisted model and confirm its pressure and service requirements. Measure your rough-in, door swing, and supply location before ordering, and use the table above to match the toilet whose published specs align with your space and habits.
