Best 16 Toilets With The Largest Size Trapway

Last Updated on September 22, 2022 by Alex Cubias

Do you have issues with your toilet getting clogged often? Most toilets when get clogged it is because of build-up in the trapway; therefore, having a larger trapway will prevent clogs. After going on many forums and reading many reviews, I have found some great toilets with large trapways.

Having a large trapway is great if you have a stool-stiffening medical condition or if you have kids that don’t know how to ration toilet paper yet. If you need a large trapway in your toilet, read on to learn which toilets are best for you.

1. American Standard Cadet 3 FloWise Concealed Trapway 2-Piece Toilet

The American Standard Cadet 3 FloWise Concealed Trapway 2-Piece Toilet has a great trapway system. Its trapway is hidden inside a wall of porcelain. This is so that the toilet is easier to clean and more aesthetically pleasing.

Its trapway is 2-1/8 inches, and this toilet has an oversized 3-inch flush valve. This means that there is a lot of space for your toilet, and you will not need to worry about waste getting stuck inside your trapway. It also uses 1.28 gallons per flush, which is 20% less than the average toilet. You will be helping the environment by purchasing this toilet.

On Sale
American Standard 2988101.020 Cadet 3 FloWise...
  • Trade exclusive tank
  • 12-inch rough-in — Measurement from the finished wall to the center of mounting holes on the floor flange
  • INDUSTRY-LEADING WARRANTY — Lifetime warranty of chinaware, 5 years on mechanical parts, and 1 year on seat

2. TOTO Promenade II Universal Height Clog-Free Toilet

The TOTO Promenade II Universal Height Clog-Free Toilet has a 2-1/8 inch trapway. This is a pretty good-sized trapway for a toilet to have. The TOTO Promenade II Universal Height Clog-Free Toilet has a tornado flushing system. This should push down any waste with a level of force that should prevent clogging from happening.

This toilet only uses 1.28 gallons per flush and is economically and environmentally friendly. You can purchase this toilet, which is on the more expensive end, but you will get what you pay for.

TOTO MS814224CEFG#01 Promenade II One-Piece...
  • Modern and classic style, elongated one-piece toilet, easier to maintain versus a two-piece toilet
  • 1.28 gallons per flush with Tornado flush system for a powerful centrifugal rinse
  • Cefiontect glaze gives the bowl a lubricious quality that prevents particles from adhering

3. Kohler K-3493-0 Highline Classic Pressure Lite

The Kohler K-3493-0 Highline Classic Pressure Lite is another great option for a strong flush toilet. The trapway of the Kohler K-3493-0 Highline Classic Pressure Lite is sized at 2-1/4 inches (57 mm) and is fully glazed. This is a great elongated size to promote flush strength.

Customer reviews say that there is nothing that can’t be flushed down this toilet because of the strength this toilet flushes at as well. The Kohler K-3493-0 Highline Classic Pressure Lite also is a great toilet for comfort. It is built at a slightly higher height to give a little more support to taller users.

Kohler K-3493-0 Highline Classic Pressure Lite...
  • Two piece toilet
  • Elongated bowl offers added room and comfort
  • Pressure Assist flushing system

4. TOTO CST744SR#01 Drake 2-Piece Trapway Toilet

The TOTO CST744SR#01 Drake 2-Piece Trapway Toilet also is known for its large trapway. The TOTO CST744SR#01 Drake 2-Piece Trapway Toilet has a trapway sized 2-1/8 inches in diameter.

The designer of the TOTO CST744SR#01 Drake 2-Piece Trapway Toilet also made sure to protect your toilet by fully glazing the trapway. This way, there are fewer chances of bacteria growth that would ruin your trapway, which would cause you to have to get a new toilet.

On Sale
TOTO Drake Two-Piece Elongated 1.6 GPF Universal...
  • POWERFUL PERFORMANCE WITH LESS FREQUENT CLEANING - TORNADO FLUSH swirls water in a circular pattern to fully wash the bowl surface. CEFIONTECT is an ultra-smooth glaze that minimizes waste from...
  • MORE COMFORT ACROSS A WIDER RANGE OF INDIVIDUALS - TOTO's Universal Height is taller than a standard toilet and makes sitting down and standing up easier for many people. Universal Height models are...
  • REDUCE WATER USEAGE WITHOUT SACRIFICE - The 1.6 gallon per flush Drake enables you to save water without worrying about diminished performance. The Drake features a wide 3 inch flush valve and a...

5. WoodBridge T-0001 One Piece: Non-Clogging Skirted Toilet with Dual Flush

The WoodBridge T-0001 One Piece: Non-Clogging Skirted Toilet with Dual Flush is another model of toilet that has a large trapway. The Woodbridge T-0001 One Piece: Non-Clogging Skirted Toilet with Dual Flush trapway is 2.25 inches. It also is a concealed trapway. This makes it easier for you to clean your toilet.

This toilet has a dual flush installment and goes through 1.28 gallons per flush. This means that this toilet is designed for optimal usage. Therefore, it should not be a surprise that this is a five-star toilet that thousands of people recommend.

WOODBRIDGE T-0001-CH TOILET, Chrome
  • ✅ [LUXURIOUS MODERN DESIGN]: Luxurious Modern Design one piece toilet , Clean, sleek look and compliment with different styles like modern , craftsman , traditional and etc.
  • ✅ [EASY TO CLEAN DESIGN]: The skirted trap way creates a sleek look and makes cleaning easier. Compare to other toilets, it has no corners and grooves, very easy to reach for cleaning .
  • ✅ [CHROME BUTTON]: A timeless, sophisticated and flattering Chrome-plated top button is included, the flat of chrome will bringing out the shimmer of brass and other metal and is perfectly pair with...

6. Toto MS854114SL #01 Ultramax Elongated Toilet

The Toto MS854114SL #01 Ultramax Elongated Toilet has a great flush system that can work for everyone. It also has a G-Max flushing system that has a 3-inch wide flush valve. It also has an extra-large siphon jet, which causes flushing to go smoothly.

The trapway for the Toto MS854114SL #01 Ultramax Elongated Toilet is concealed within a porcelain box that protects it and makes your toilet easier to clean and more pleasing to look at. It also is built high for tall users. Overall, this is an effective toilet.

Toto MS854114SLR#01 UltraMax Elongated 1.6GPF...
  • Toto MS854114SLR#01 ADA ULTRAMAX ONE PIECE TOILET W/RIGH HAND TRIP LEVER/COTTON
  • Sleek high profile one piece toilet, ADA Height
  • G-Max Flushing System: Quiet, powerful

7. American Standard Champion 4 2034.314.020

The American Standard Champion 4 2034.314.020 has a very large trapway that makes the flushing properties of the American Standard Champion 4 2034.314.020 perfect. Its trapway is 2-3/8 inches (60 mm) in size. It is also another fully-glazed trapway, which means that it is going to last a long time as an appliance.

It has passed a series of factory flush tests, proving that the company is aware of the capabilities of this toilet. It also will only use 1.6 gallons per flush. This is a good mid-range flush water level. The toilet also comes in three colors white, linen, and bone. You will be able to find the aesthetic you are looking for for your bathroom.

American Standard 2034314.020 Champion 4 One-Piece...
  • Includes color-matched Champion slow-close toilet seat
  • Elongated Chair Height siphon action jetted bowl
  • EverClean - Permanently maintains cleanliness of the surface

8. Caroma Caravelle Smart

When questioned on Reddit about which toilet has the best flush and clogs the least, the majority of users responded by saying that the Caroma Caravelle Smart was the best. They argued it has a great flush system that they would recommend to anyone having issues with getting their toilet to flush.

The Caroma Caravelle Smart has a top-mounted dual flush option that has the strength for the heaviest of loads. It also only uses 1.28 gallons per flush to help save your water budget and protect the environment from waste. This toilet follows the guidelines set forth by the ADA so everyone can have access to it, and is perfect for all families and their needs.

9. Sydney Smart II

The Sydney Smart II by Caroma has a very strong flush. It has an enlarged trapway. This makes it easier to get strength on the flush. It only uses 1.28 gallons per flush. The Sydney Smart II has a two-button dual flush HET toilet. This will give your toilet a little extra strength when flushing.

Caroma’s signature trapway is glazed and twice the size of the industry standard for trapways. This eliminates almost all clogs.

There is also a 12-inch standard floor rough-in on the Sydney Smart II. Continuing the ADA bowl height is 16.5 inches, and the Sydney Smart II hits that number perfectly to make it accessible to all people. It also includes the Caroma elongated seat for a more comfortable usage experience.

10. Glacier Bay Power Flush 2-Piece 1.28 GPF Single Flush Elongated Toilet

The Glacier Bay Power Flush 2-Piece 1.28 GPF Single Flush Elongated Toilet is a powerful toilet. It has an extra-large 2-3/8 inch trapway that is completely glazed. It also has an elongated toilet bowl for extra comfort, making it a pleasurable option. It is 16.5 inches tall, which makes it compliant with the ADA guidelines. The Glacier Bay Power Flush 2-Piece 1.28 GPF Single Flush Elongated Toilet uses 1.25 gallons per flush, which will save you money.

The toilet comes with a QuickConnect Installation System that makes installing the Glacier Bay Power Flush 2-Piece 1.28 GPF Single Flush Elongated Toilet a breeze. The Glacier Bay Power Flush 2-Piece 1.28 GPF Single Flush Elongated Toilet also has a vacuum-assist power chamber that gives extra strength to your flush. It rated 10 out of 10 in flushing power.

11. The Champion 4 Flushing System 

A classic option is the Champion 4 Flushing System. The Champion 4 Flushing System is crafted out o vitreous china. It meets the definition of a high-efficiency toilet by using 1.28 gallons per flush. Its surface was crafted to inhibit the growth of stains and odor caused by bacteria, mold, and mildew growing on the surface.

Most importantly, it has a remarkable flushing system. The trapway measures 2-3/8 inches in diameter, giving waste a lot of room to get through. Its rim is 16-1/2 inches, and the trapway is fully glazed to make it long-lasting. Not only does it have great space for waste, but it also uses a power wash flush that makes sure there is nothing left behind.

The Champion 4 Flushing System has a chrome-plated trip lever and a sweeping pier on the bowl. The toilet passed all of the factory flush tests with flying colors. The Champion 4 Flushing System is also fully equipped with 2 bolt caps and is easy to install with no tools. Everything needed to install the toilet is included in the box.

American Standard 2034314.020 Champion 4 One-Piece...
  • Includes color-matched Champion slow-close toilet seat
  • Elongated Chair Height siphon action jetted bowl
  • EverClean - Permanently maintains cleanliness of the surface

12. American Standard Cadet Pressure Assisted Toilet

The American Standard Cadet Pressure Assisted Toilet has a 2-1/8 inch trapway. This causes a much smoother flush. It also is a low-consumption toilet using only 1.6 gallons per flush. The American Standard Cadet Pressure Assisted Toilet has also included an EverClean Antimicrobial Surface that will prevent the growth of stain and odor-causing mold, bacteria, and mildew.

The American Standard Cadet Pressure Assisted Toilet is sized at 16-1/2 inches in chair height to be accessible to all people. The American Standard Cadet Pressure Assisted Toilet also has a chrome-plated metal trip lever for durability. The two color-matched bolt caps will also be a great feature for your toilet to possess for durability.

13. Swiss Madison SM-1T112

The Swiss Madison SM-1T112 is a great product. It is a dual flush toilet which gives it the strength to keep away clogs. The Swiss Madison SM-1T112 uses only 1.6 gallons per flush. It is made out of durable ceramic material for long life. The toilet bowl is elongated to add room and comfort for users.

It also has a toilet seat designed to close softly, so your child can no longer slam the toilet seat shut. It also is a quick-release toilet seat, meaning that it does not leave the lid open for accidents anymore. You get a tank, bowl, seat, wax ring, bolt kit, and cover caps. Therefore, you are getting a lot for your money, and it is a good investment to purchase the Swiss Madison SM-1T112.

On Sale
Swiss Madison SM-1T112 Ivy One Piece Toilet Dual...
  • Dual Tornado flush with high-performance gravity 0.8 / 1.28 gallon per flush (gpf).
  • Fully skirted design for sleek look and easy cleaning
  • Environment Friendly WaterSense toilets, meet strict EPA flushing guidelines.

14. American Standard 2462016.020 Cadet 1.6 GPF

The American Standard 2462016.020 Cadet is a great American-styled toilet seat. The American Standard 2462016.020 Cadet is shaped to be elongated and has a robust flushing system that stops clogs from forming. The American Standard Champion 4 Toilet has a flush rate of 1.6 gallons per flush. The American Standard 2462016.020 Cadet uses a Pressure-assisted siphon jet flush action. Most importantly, it has a 2-1/8 inch trapway to help prevent clogs.

The Cadet toilet has a powerful flush that prevents clogging. The American Standard 2462016.020 Cadet uses an accelerator flush valve to give its flush more strength. It is one of American Standard’s taller toilets. It is heightened at a 15″ rim height.

The American Standard Cadet uses an EverClean surface that has antimicrobial properties to stop the growth of bacteria, mold, and mildew. This will prevent odors and stains.

On Sale
American Standard 2462016.020 Cadet 1.6 GPF...
  • Combination bowl and tank, less seat
  • Pressure-assisted siphon jet flush action
  • Low consumption (1.6 gpf/6.0 Lpf)

15. The Woodbridge One Piece 1.1GPF/1.6 GPF Dual Flush Elongated Toilet 

The Woodbridge One Piece 1.1GPF/1.6 GPF Dual Flush Toilet is a great model. It has a skirted trapway to promote cleanliness and an elegant style. The Woodbridge One Piece 1.1GPF/1.6 GPF Dual Flush Toilet also has a dual flush system installed, which means that your toilet will flush at a quicker rate.

The Woodbridge One Piece 1.1GPF/1.6 GPF Dual Flush Toilet has a fully glazed exterior and a fully glazed interior. This allows the Woodbridge TOne Piece 1.1GPF/1.6 GPF Dual Flush Toilet to be more durable and last through all sorts of conditions, so you can use it as long as you wish.

On Sale
WOODBRIDGE One Piece 1.1GPF/1.6 GPF Dual Flush...
  • Including WOODBRIDGE bath one piece toilet and bidet seat, bidet seat fit the toilets perfect
  • Sleek, low profile skirted elongated toilet, comfort height, water sense, high-efficiency
  • Advanced bidet seat- smart toilet seat with temperature controlled wash functions and air dryer

16. Integrated Smart Bidet Toilet TCB-090SA

The Integrated Smart Bidet Toilet TCB-090SA is a smart toilet that can sense how strong the flush needs to get a clog out of the way. The Integrated Smart Bidet Toilet has a large trapway so it can accommodate this intelligent usage of technology. Not only that, but the toilet seat is heated, and it has a smart lid that closes when you leave. This will keep little ones and pets out of the toilet.

On Sale
VOVO STYLEMENT TCB-090SA Smart Bidet Toilet, Made...
  • 💧 AUTOMATIC OPEN/CLOSE LID - Attached with motion sensor for convenient and hygienic use
  • 💧 AUTOMATIC DUAL FLUSH - Smart seat sensor that detects the user to distinguish between small flush and large flush, providing hands-free operation. (1.12 GPF / For 35 PSI)
  • 💧 HEATED SEAT / WARM WATER / WARM AIR DRYER - Premium bidet features with self cleaning stainless steel nozzle with auto deodorization