Buying a toilet sounds simple until you walk into a plumbing showroom and see sixty models ranging from $120 to $6,000. The types of toilets on the US market in 2026 break down along four dimensions: bowl shape, tank style, flush mechanism, and mounting method. Getting the right combination affects water bills, cleaning time, and whether your guests can find the flush handle.
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One-Piece vs Two-Piece Toilets
A two-piece toilet has a separate tank that bolts to the bowl, which is the design most American homes still have. Two-piece units are lighter to carry, cheaper (starting around $130 for a Glacier Bay model), and easier to replace as individual components when parts wear out.
One-piece toilets integrate the tank and bowl into a single molded ceramic unit. No seam means nowhere for dust and residue to collect, they typically look sleeker, and they weigh 90 to 120 pounds which means a helper is mandatory for installation. Expect to pay $300 to $1,200 for quality one-piece models from TOTO, Kohler, or American Standard.
Round vs Elongated Bowls
Round bowls measure about 16.5 inches from the mounting bolts to the front lip. Elongated bowls stretch to 18.5 inches, which most adults find more comfortable. Elongated is the default for new construction, but round still makes sense in small bathrooms where the extra 2 inches steal knee room from the vanity or door swing.
Codes in commercial buildings usually require elongated for ADA compliance. Residential bathrooms can use either.
Comfort Height vs Standard Height
Standard toilets sit 14 to 15 inches from floor to seat. Comfort height (sometimes called chair height or ADA height) sits 16.5 to 17 inches. The taller dimension is easier on knees and hips, which is why comfort height now accounts for roughly 75 percent of residential sales. If kids under 6 are the primary users, standard height still has its place.
Flush Mechanisms Compared
- Gravity-flush single flush: simplest and most reliable, uses 1.28 to 1.6 gallons per flush (GPF)
- Gravity-flush dual flush: 0.8 GPF for liquid, 1.6 GPF for solid, saves about 4,000 gallons per year in a family of four
- Pressure-assisted: uses compressed air for a powerful flush with less water, but loud
- Power-assist electric: commercial and premium residential, plugs into 120V outlet
- Tankless: direct water supply, requires high household pressure (over 35 PSI)
Wall-Hung Toilets
Wall-hung toilets mount to a concealed carrier inside the wall, with the tank hidden between the studs. The floor underneath the bowl is completely clear, which makes mopping trivial and gives the bathroom a modern gallery look. Installation requires either new construction or a full wall demo to accommodate the 2×6 or 2×8 carrier framing.
Quality carriers from Geberit or TOTO run $400 to $900, with the bowl and actuator plate adding $600 to $2,500 more. Budget $3,000 to $5,000 installed including plumbing and carpentry.
Smart Toilets
Japanese-style smart toilets now account for a growing share of premium remodels. Features include heated seats, integrated bidets, self-closing lids, air drying, and auto-flushing. TOTO Neorest, Kohler Numi 2.0, and American Standard ActiClean lead the category. Pricing runs $2,500 to $6,500, and installation requires a grounded GFCI outlet within 3 feet of the toilet.
Compact and Corner Toilets
Small bathrooms under 30 square feet benefit from compact models with 10-inch rough-in dimensions (distance from wall to drain centerline) instead of the standard 12-inch. Corner toilets mount diagonally with triangular tanks and are rare but effective in awkward layouts. Check your rough-in measurement before ordering, since mismatched rough-in is the number one reason toilets get returned.
WaterSense and Efficiency Ratings
The EPA WaterSense label certifies toilets that use 1.28 GPF or less while still passing a 350-gram solid waste flush test. California, Colorado, Georgia, Texas, and several other states now require WaterSense compliance in new construction. A WaterSense toilet typically saves $110 per year on water bills for a family of four compared to a pre-1994 3.5 GPF legacy unit.
Installation Costs
Straightforward swap-in replacement with no flange repair runs $225 to $400 in labor. Add $150 to $300 if the flange needs to be reset or replaced. Wall-hung installs with new carrier run $700 to $1,400 in labor. Smart toilet installs add electrical work at $200 to $500 depending on whether a new circuit is needed.
How to Decide
For most replacements, a two-piece comfort height elongated dual-flush unit from TOTO Drake or Kohler Cimarron at $400 delivers 95 percent of what you need. Upgrade to one-piece if aesthetics matter. Go wall-hung if you are already remodeling and want the floor-clear look. Reserve smart toilets for primary bathrooms where the daily benefit justifies the price.
Features Worth Paying Extra For
Not every upsell on the showroom floor delivers daily value, but a few add-ons repay their cost within the first year of ownership. A soft-close toilet seat adds $30 to $60 and eliminates slam noise that carries through the house, a welcome upgrade in homes with shared bathrooms. Skirted trapways hide the curved exterior of the bowl behind a smooth ceramic skirt, cutting cleaning time in half since there is no complicated geometry to wipe around. Skirted models like the Kohler Veil run $550 to $900 and show their value every time you clean.
Glazed trapways are worth seeking out on any mid-range or higher toilet. Brands like TOTO (SanaGloss) and Kohler (CleanCoat) fuse a ceramic glaze into the internal trapway so waste slides through cleanly rather than sticking and requiring extra flushes. Chair-height models with a larger 3-inch flush valve and 2-inch trapway handle solid waste better than the older 2-inch flush valve designs, which is why TOTO Drake and American Standard Champion dominate professional plumber recommendations. Avoid ultra-cheap big-box toilets under $130, since their glazed surfaces wear thin within five years and they clog at roughly triple the rate of mid-tier units according to Consumer Reports data.
