What if your toilet could feel less like a necessity and more like a luxury? We all spend time in the bathroom, but most toilets are just… functional. If you’ve ever felt frustrated by a clunky, hard-to-clean toilet with questionable performance, you are not alone. The world of modern plumbing offers a sleek upgrade, and the “One Piece Toilet” is leading the charge.
Choosing a new toilet can feel overwhelming. You face confusing terms like “skirted design” and “rough-in measurements.” The biggest pain point is often the dreaded gap between the tank and the bowl—that nasty space where dust and grime love to hide! A One Piece toilet solves this headache by merging the tank and bowl into one seamless unit, making cleaning incredibly easy and giving your bathroom a clean, modern look.
This guide cuts through the confusion. We will break down exactly what makes a One Piece toilet a superior choice for your home. You will learn about installation ease, space-saving benefits, and how to pick the perfect model that fits your budget and style. Get ready to transform your bathroom experience. Let’s dive into everything you need to know before you buy!
Top One Piece Toilets Recommendations
- Luxurious Toilets for Bathrooms: Seamless, one-piece toilets design makes a statement with its clean lines and low profile. This compact elongated toilet measures just 26.6 inches deep by 15 inches wide and 26 inches high (entire height), ensuring plenty of room for comfort in a bathroom space.
- Chair Height Toilet: ADA Compliant. Features 17.3"+ seat height from floor to seat. Comfortable height seating, ideal for the elderly and individuals with disabilities which makes sitting down and standing up easier.
- Powerful Flushing: Fully-glazed 2" trapway. Such a powerful and water-saving toilet bowl comes from our research and development of innovative toilet plumbing structures
- Easy to Install: Two big opening holes on the side to fix the toilet much easier. Installing a new modern toilet isn't as hard as it sounds. All you need are a few hours and a plumber. Installation video explanations will make the installation process easier
- Water Saving Performance: Siphon Flushing. Dual Flush 0.8/1.28 GPF. A 1.28-gallon flush provides significant water savings of up to 16,500 gallons per year, compared to a 3.5-gallon toilet, without sacrificing performance
- Powerful & Quiet Flush, Less Water — The MAP 800g uses only 1.28 GPF and a powerful siphon jet that clears waste completely—no clogs, no double flushing. Features a fully glazed 2-inch trapway and flapper-free design for reliable, leak-free operation, all in an ultra-quiet flush.
- Cleaner with Less Effort — The sleek, fully skirted one-piece design eliminates hard-to-clean corners. A self-cleaning, anti-stick glaze keeps the bowl looking fresh longer, making your bathroom cleaner and more hygienic.
- Compact Comfort — Measuring just 28.75" D x 14" W x 28" H, this elongated toilet fits easily in smaller bathrooms without compromising seating space or comfort.
- Modern Elegance, Perfect Fit — The modern silhouette and elongated bowl blend style with functionality. A standard 12" rough-in ensures a secure, straightforward fit in most U.S. homes.
- Friendly Installation — Wide side openings make setup fast and easy, even in tight spots. The package includes a pre-installed flush valve, a soft-close seat, a wax ring, floor bolts, and easy-to-follow instructions.
- Space-Saving, Compact Design: The Donsdey Compact One Piece Toilet with 12'' Rough Inch is designed to maximize bathroom space with its sleek, one-piece construction. This compact design of the white ceramic toiletc ensures that it fits effortlessly into modern bathrooms, making it the ideal choice for those seeking a space-saving solution without sacrificing style or comfort.
- Comfortable & Ergonomic Soft Close Seat: Designed with comfort in mind, the Donsdey Compact One Piece Toilet features an ergonomic seat that offers a relaxing experience for all users. The soft-closing lid ensures smooth operation, preventing sudden slams and reducing wear over time.
- Easy to Clean & Maintain: Crafted from high-quality ceramic, the Donsdey toilet boasts a smooth, non-porous surface that makes cleaning and maintenance a breeze. The one-piece construction eliminates crevices where dirt and bacteria can accumulate, ensuring your bathroom stays sanitary with minimal effort. Spend less time cleaning and more time enjoying your bathroom with this easy-to-maintain toilet.
- Durable, Long-Lasting Construction: Built to last, the Donsdey toilet is made from durable ceramic material, ensuring it stands up to daily use and maintains its elegant design for years to come. Its hard-wearing construction is perfect for high-traffic bathrooms, offering long-lasting performance and peace of mind. With proper care, this toilet will provide reliable service for many years
- Donsdey's Assurance: It offers exceptional resistance to dents and scratches, ensuring long-term reliability. Includes free template kits and support—because your kitchen deserves perfection.Please do not hesitate to contact us if you encounter any problems!
- Luxurious Modern Toilet for Bathrooms: skirted 1-piece toilet integrates the tank and bowl into a seamless, easy-to-clean design, no leaking tank problem
- Powerful Siphon Flush Toilet: with a MAP rating of 1000, provides a powerful siphon jet flush performance, great performance flush score of 1000 grams and fully-glazed trapway bring a super quiet and powerful flush with no clogs
- Water Saving Performance: dual-flush option (1.1 GPF for liquids, 1.6 GPF for solids), meets EPA's WaterSense criteria for superb water conservation
- Comfort Height Toilet: our compact elongated toilet measures 27.17 inch Deepth x 14.37 inch Width x 25.39 inch Height, 17 inch ADA comfort chair seat height and bring convenience to users
- Soft Close & Quick Release Seat: high-quality materials and construction for long-lasting performance, closes slowly and quietly without slamming, ensuring a peaceful bathroom experience
- Dual Flush Modern Design: Our elongated toilet is a more classic style, with smooth shape and one-piece molding. Luxurious modern design dual flush 1.1/1.6 GPF toilet, clean, sleek look, and compliment with different styles like a modern, craftsman, traditional and etc.
- Easy To Clean: The modern toilet's fully skirted trapway design makes it extremely easy to clean. It can be kept clean for a longer time because of using self-cleaning materials. Compare to other standard toilets, it has no corners and grooves and is very easy to reach for cleaning, not like others hard to reach.
- Easy to Install: Two big opening holes on the side to fix the toilet much easier. Installing a new modern toilet isn't as hard as it sounds. All you need are a few hours and a plumber. Package includes toilet, soft closing toilet seat, pre-installed flush valve, high-quality wax ring, floor bolts, and also installation instructions.
- Space Saver Toilet: This small compact toilet measures just 28.75 inches deep by 14 inches wide and 28 inches high, ensuring plenty of room for comfort in a small space. Great for apartments, small bathrooms, ensuite bathrooms, and more.
- Water Saving Performance: Dual Flush 1.1/1.6 GPF. All average 1.28-gallon flush provides significant water savings of up to 16,500 gallons per year, compared to a 3.5-gallon toilet, without sacrificing performance.
- ELONGATED SEAT & SPACE SAVING: The compact toilet measures 26.77 " x 14.37 " x 27.17" inches, this toilet is more suitable for small bathroom use. Meanwhile, it has an elongated toilet seat, the elongated toilet seat is more ergonomic, providing you a more comfortable using experience.
- POWERFUL & QUIET DUAL FLUSH: This one-piece toilet has a maximum flushing performance of 1,000 grams, with a siphon dual-flush design, 1.6 gallons of water for a full flush and 1.1 gallons of water for a light flush. Low-noise flushing and high dirt-flushing capacity flushes away trapped dirt without clogging or leaking.
- EASY TO CLEAN: Compared to other toilets, the seamless, full-skirt trap design of the one-piece toilet has no corners or grooves, making it easy to clean.
- QUIET TO USE: Modern toilets are designed with a soft-closing quick-release seat that closes gently and quietly, reducing noise during nighttime toileting.
- EASY TO INSTALL: Two large openings on the side make it easier for plumbers to install this dual flush toilet. The package includes the toilet, soft-poo lid, pre-installed flush valve, premium wax ring, floor bolts and installation instructions, and an adapter for 1/2-inch water supply lines is also provided.
- This sleek, one-piece toilet combines the tank and bowl into a single, seamless unit for a contemporary look and easier cleaning, making it a stylish centerpiece for any modern bathroom.
- Designed with an elongated bowl at a comfort height that complies with ADA guidelines. This ergonomic design provides enhanced comfort and makes sitting down and standing up easier for adults, seniors, and tall individuals, ensuring universal accessibility.
- Features convenient top-mounted dual-flush buttons for a choice between a full 4.8 LPF (1.28 GPF) flush and a partial 3 LPF (0.8 GPF) flush. This powerful flushing technology ensures thorough bowl cleaning while conserving water for significant utility savings.
- Includes a premium soft-closing, slow-close seat that prevents slamming. Crafted from smooth, high-gloss vitreous china, the non-porous surface and fully glazed bowl resist stains for effortless maintenance and long-lasting hygiene.
- Engineered for a straightforward setup. Comes with essential hardware for easy installation, making it an ideal choice for DIY bathroom upgrades and renovations.
- Space-Saving Compact Toilet: Compact toilet (24½"L×13⅜"W×28⅜"H) with standard round bowl fits tight spaces, providing ergonomic seating up to 250 lbs. Ideal small toilet for small bathroom installations.
- Water-Efficient Dual Flush Toilet System: One-piece toilet with 1.1/1.6 GPF dual flush technology saves up to 16,500 gallons annually, about 60% less water than 3.5 GPF models, while delivering powerful flushing performance.
- Easy-Clean Skirted Toilet: Fully skirted toilet design eliminates hard-to-reach crevices for effortless cleaning, helping your bathroom stay spotless with minimal effort.
- Quiet Soft-Close Seat: Includes a soft-close PP seat that operates at just 28dB for silent, smooth closing without slamming.
- Tool-Included Quick Installation: Comes with complete installation kit: one-piece toilet body, pre-assembled valve, wax ring, bolts, wrench, and manual. Side-access panels make plumbing easier and faster.
Choosing Your Perfect One-Piece Toilet: A Buyer’s Guide
A one-piece toilet offers a sleek, modern look for your bathroom. Unlike two-piece toilets, the tank and bowl join as one solid unit. This design makes cleaning easier and adds a touch of style. Ready to find the best one for your home? Here’s what you need to know.
Key Features to Look For
When shopping, keep these important features in mind. They affect how well your toilet works and how long it lasts.
Flushing Power and Efficiency
- Siphon Jet vs. Gravity Flush: Most modern toilets use a gravity-fed system, but look for strong jet action. A powerful flush clears waste completely in one go.
- Gallons Per Flush (GPF): Check the WaterSense label. Toilets using 1.28 GPF or less save water and money. Older toilets use much more.
- Flush Mechanism: Dual-flush options let you choose between a full flush for solid waste and a half flush for liquid waste. This is great for saving water.
Comfort and Design
- Seat Height: Standard height is about 15 inches. Comfort height (or “right height”) is taller, around 17 to 19 inches. Taller seats are easier for adults and older people to use.
- Bowl Shape: Elongated bowls are oval and offer more comfort than round bowls. Round bowls save a little space in smaller bathrooms.
- Skirted Trapway: This feature hides the ugly pipes (the trapway) under a smooth base. It looks very modern and cleaning the outside is much faster.
Important Materials and Construction
The material of your toilet greatly impacts its durability and appearance.
Vitreous China
Almost all quality one-piece toilets use vitreous china. This is a type of ceramic that gets very hard when fired in a kiln. It creates a non-porous, glossy surface. This surface resists stains and is very easy to wipe clean.
Internal Components
Look inside the tank. The flushing mechanism (flapper, fill valve) should be made of durable plastic or quality brass parts. Cheap plastic parts break faster, leading to leaks or constant running water.
Factors Affecting Quality
Some things make a one-piece toilet better than others.
What Improves Quality:
- Glazing Quality: A thicker, smoother glaze means less chance for dirt to stick. High-quality toilets often have a special glaze that resists sticking.
- Solid Construction: A heavier toilet usually means thicker ceramic walls. Thick walls resist chipping and cracking better.
What Reduces Quality:
- Thin Porcelain: Very lightweight units might use thin porcelain. These can be less durable over time.
- Standard Flush Valves: If the internal flushing parts are very basic, they might wear out quickly and cause maintenance issues.
User Experience and Use Cases
Think about where you will put the toilet and who will use it.
Cleaning Ease
This is a huge win for one-piece toilets, especially those with skirted designs. Since there are no gaps between the tank and bowl, you avoid the dusty, hard-to-reach spots common on two-piece models. This saves significant scrubbing time.
Installation
One-piece toilets are often heavier than two-piece units because they are molded as one piece. Moving them into place can require two people. However, installation is usually simpler because you do not need to bolt the tank to the bowl.
Best Use Cases
- Modern Bathrooms: The seamless look fits perfectly in updated or minimalist designs.
- High-Use Bathrooms: Their durability and easy cleaning make them great for busy family bathrooms.
- Small Spaces: Some compact one-piece models fit well where space is limited, though you must check rough-in measurements carefully.
10 Frequently Asked Questions (FAQ) About One-Piece Toilets
Q: Are one-piece toilets harder to install than two-piece toilets?
A: They can be heavier to lift because they are one solid unit. However, you skip the step of bolting the tank to the bowl, which some users find simpler.
Q: Do one-piece toilets cost more than two-piece toilets?
A: Yes, usually they do. The manufacturing process to mold them as one seamless piece is more complex, which raises the price.
Q: How do I know if a one-piece toilet will fit my rough-in?
A: The rough-in measurement (distance from the wall to the center of the floor drain) is vital. Measure this distance before you buy. Most toilets fit standard 12-inch rough-ins, but check the toilet specifications.
Q: Can I use a standard toilet seat on a one-piece toilet?
A: Yes, most one-piece toilets use standard round or elongated seat shapes. Always check the product details to confirm the bowl shape.
Q: Do one-piece toilets clog easily?
A: Not necessarily. Clogging depends more on the quality of the flush system (the trapway design) than whether it is one or two pieces. Look for models with strong flush ratings.
Q: What is a skirted trapway, and why is it good?
A: A skirted trapway covers the S-shaped pipe on the side of the toilet base with smooth porcelain. This makes the exterior look cleaner and wipes down quickly.
Q: How do I clean the inside of the tank on a one-piece model?
A: You access the tank through the lid, just like any toilet. Since the bowl and tank are connected, you clean the exterior in one sweep, which is the main benefit.
Q: What is the difference between standard height and comfort height?
A: Comfort height seats are taller, usually about 17 to 19 inches from the floor. This height is closer to a standard chair, making sitting down and standing up easier.
Q: Are one-piece toilets more durable?
A: Because they lack the seam between the tank and bowl, they eliminate a potential weak point where leaks can sometimes start over many years of use.
Q: What is the best GPF rating to look for?
A: Look for 1.28 GPF or less. Toilets with this rating meet high efficiency standards and reduce your water bill without sacrificing flushing power.