Swiss Madison Sublime II One-Piece Toilet Review: Compact 10-Inch Rough-In, Dual Flush, and Skirted Design

A compact toilet can solve a very specific bathroom problem: fitting a complete, comfortable fixture into a space where a standard elongated toilet simply projects too far into the room. That challenge becomes even more specific when the bathroom uses a 10-inch rough-in, which is less common than the standard 12-inch layout found in many homes.

The Swiss Madison Sublime II One-Piece 10-Inch Rough-In Toilet is designed for that kind of installation. It combines a short 24-inch depth, round bowl, one-piece ceramic body, dual-flush system, skirted trapway, soft-close quick-release seat, and dedicated installation access holes.

Its main advantage is not just appearance. The toilet is built around space efficiency and plumbing compatibility, making it particularly relevant for older homes, compact bathrooms, powder rooms, and remodels where the existing drain location sits closer to the finished wall.

What Is the Swiss Madison Sublime II?

The Sublime II is a one-piece floor-mounted toilet with a round bowl and 10-inch rough-in.

According to the supplied specifications, its overall dimensions are approximately 24 inches deep, 14 inches wide, and 28.75 inches high.

The toilet is made from glossy white ceramic and weighs approximately 89 pounds.

It uses a dual-flush mechanism offering:

• 1.1 gallons per flush for the lower-volume flush
• 1.6 gallons per flush for the full flush

The model also includes a fully glazed skirted trapway and a soft-close quick-release toilet seat.

Why the 10-Inch Rough-In Matters

The rough-in is one of the most important toilet specifications, yet it is often overlooked.

It refers to the distance from the finished wall behind the toilet to the center of the floor drain or closet flange.

Most modern residential toilets are commonly designed around a 12-inch rough-in, but some bathrooms use 10-inch or 14-inch layouts.

If your bathroom has a 10-inch rough-in, installing a standard 12-inch toilet may not work properly because the tank can interfere with the wall.

Measure Before You Buy

Measure from the finished wall, not the baseboard, to the center of the closet bolts or flange.

A true 10-inch rough-in should be confirmed before ordering this model.

Do not assume the toilet is correct simply because the existing fixture looks compact.

Why 10-Inch Rough-Ins Are Common in Older Homes

Older houses and certain remodels sometimes use tighter drain placement than modern standard layouts.

A toilet specifically designed for a 10-inch rough-in can avoid costly plumbing relocation.

That makes the Sublime II potentially useful where maintaining the existing drain position is preferable to opening the floor and moving the flange.

Compact 24-Inch Depth

The toilet measures only about 24 inches from front to back.

That is a notably compact projection compared with many standard elongated toilets.

The shorter depth can preserve more usable floor space in bathrooms where every inch matters.

Where the Compact Footprint Helps

A shorter toilet can improve clearance around:

• Bathroom doors
• Vanities
• Shower doors
• Opposing walls
• Narrow walkways

In a small room, a few inches of reduced projection can noticeably improve circulation.

Round Bowl Design

The Sublime II uses a round bowl instead of an elongated one.

Round-front toilets traditionally save space because the front of the bowl does not project as far into the room.

That makes this model particularly appropriate for:

• Powder rooms
• Small bathrooms
• Tight renovation layouts

Round vs. Elongated Comfort

An elongated bowl usually provides more front-to-back seating room and may feel more comfortable for many adults.

A round bowl sacrifices some of that length in exchange for a smaller footprint.

The right choice depends on whether bathroom clearance or maximum seating space is the higher priority.

Standard-Height Seating

The product is described as standard height, generally in the 15- to 17-inch range.

That is lower than many chair-height or comfort-height toilets.

A standard-height toilet may feel natural for:

• Shorter adults
• Children
• Users accustomed to traditional toilets

Taller adults or people with limited knee and hip mobility may prefer a higher bowl.

Standard Height vs. Chair Height

A taller chair-height toilet can make standing up easier for some users.

A standard-height bowl can provide a more natural foot position for shorter users.

There is no universally best height, so the choice should reflect the people who will actually use the bathroom.

One-Piece Construction

The Sublime II combines the tank and bowl into one ceramic fixture.

This gives the toilet a cleaner appearance and eliminates the seam between tank and bowl found on traditional two-piece models.

Easier Exterior Cleaning

That missing seam means fewer areas where:

• Dust
• Moisture
• Bathroom residue

can accumulate.

The one-piece design can therefore make routine exterior cleaning faster and easier.

Modern Minimalist Appearance

A one-piece toilet generally looks more integrated than a traditional two-piece fixture.

The glossy white finish and compact proportions suit a wide range of bathroom styles, including:

• Contemporary
• Minimalist
• Transitional
• Small-space modern

Skirted Trapway

The toilet also uses a skirted base.

Instead of exposing the curved outline of the internal trapway, the plumbing shape is hidden behind smooth ceramic side panels.

This creates a cleaner visual profile.

Why Skirted Toilets Are Easier to Clean

Traditional exposed trapways create multiple curves and recesses where dust tends to collect.

A skirted body replaces those contours with flatter surfaces.

That can significantly simplify cleaning around the sides of the toilet.

Fully Glazed Trapway

Inside the toilet, the trapway is fully glazed.

The glazed surface is intended to create a smoother path for waste and water.

A smoother passage can reduce friction and may help limit buildup compared with an unfinished internal surface.

Can a Glazed Trapway Prevent Every Clog?

No toilet is completely clog-proof.

A fully glazed trapway may help waste move more smoothly, but clogging can still result from:

• Excess paper
• Foreign objects
• Drain problems
• Plumbing restrictions

It is better to view glazing as one part of the flushing system rather than a guarantee.

Dual-Flush System

The Sublime II provides two flush volumes.

The lower setting uses approximately 1.1 GPF, while the full flush uses approximately 1.6 GPF.

This allows users to select the amount of water appropriate for the waste load.

When to Use the Light Flush

The 1.1-gallon setting is intended primarily for liquid waste.

Using the lower-volume option when appropriate can reduce household water consumption.

When to Use the Full Flush

The 1.6-gallon setting provides additional water for solid waste.

That extra volume can help create a stronger clearing action when needed.

Dual Flush vs. Single Flush

A dual-flush system gives users more control over water consumption.

A single-flush toilet is simpler because every flush uses the same amount of water.

The water-saving advantage of dual flush depends on household behavior: users need to actually select the lower-volume option when it is sufficient.

How Much Water Can Dual Flush Save?

The precise savings depend on how often each button is used.

A household that frequently uses the 1.1 GPF setting may consume less water than one using a fixed 1.6 GPF toilet.

However, it would be inappropriate to claim a specific annual savings without usage data.

Top-Mounted Flush Buttons

The flush controls are located on top of the tank.

This is common with dual-flush toilets because it provides two clearly separated buttons.

Top-mounted controls also contribute to the toilet's clean side profile.

Scratch-Resistant Ceramic

The toilet is described as using scratch-resistant ceramic.

Ceramic is well suited to bathrooms because it is:

• Hard
• Water resistant
• Easy to glaze
• Durable under normal use

The glossy surface can maintain its appearance for many years when cleaned properly.

Non-Porous Surface

The ceramic is also described as non-porous.

A glazed non-porous surface does not readily absorb moisture or staining substances.

This helps make the fixture easier to clean and more appropriate for a high-moisture bathroom environment.

Cleaning the Ceramic

Use cleaners that are compatible with glazed ceramic.

Routine cleaning is usually preferable to harsh scrubbing after heavy buildup forms.

Pay particular attention to:

• Bowl waterline
• Seat mounting area
• Base

where residue tends to accumulate.

Avoid Overly Abrasive Cleaning

Although ceramic is durable, aggressive abrasive tools can damage finishes over time.

A soft brush or non-scratch cleaning pad is generally more appropriate.

Soft-Close Toilet Seat

The toilet includes a soft-close seat.

The lid and seat are designed to lower gradually rather than slam shut.

This reduces:

• Noise
• Impact
• Sudden pinching risk

It can be especially useful in households with children.

Quick-Release Seat

The included seat can also be detached using a quick-release mechanism.

That feature makes it easier to clean the area around:

• Hinges
• Rear bowl
• Mounting points

These are common places for residue to build up.

Why Quick Release Is Practical

Traditional toilet seats can make thorough cleaning around the hinges awkward.

A seat that detaches easily gives direct access to the ceramic underneath without requiring tools every time.

Three-Inch Installation Access Holes

Skirted toilets can sometimes be more difficult to install because the smooth side panels hide the mounting hardware.

Swiss Madison addresses that with approximately 3-inch access openings.

These openings allow installers to reach the mounting points more easily.

Installation Access vs. Appearance

After installation, the access areas are designed to preserve the streamlined skirted appearance.

This is an important compromise: the toilet can maintain clean exterior styling without making the installation hardware completely inaccessible.

One-Piece Toilet Weight

The toilet weighs approximately 89 pounds.

That is manageable compared with some heavier fixtures, but it is still awkward because the tank and bowl cannot be separated.

Two people may be preferable for final positioning.

Why Positioning Matters

The toilet needs to be lowered accurately onto the floor seal and flange.

Dragging or repeatedly shifting a heavy one-piece toilet can damage:

• Wax ring
• Flooring
• Mounting hardware

Careful placement helps reduce the chance of leaks.

Wax Ring and Installation Hardware

The supplied source does not clearly state whether a wax ring or full floor-mounting kit is included.

Buyers should therefore confirm package contents before beginning installation.

Having all required parts on hand prevents delays once the old toilet has been removed.

Professional Installation vs. DIY

An experienced DIYer may be able to install the toilet if the existing flange and water supply are in good condition.

Professional installation may make more sense when:

• The flange is damaged
• The floor is uneven
• The water valve needs relocation
• The rough-in is uncertain

The toilet itself may be straightforward, but unexpected plumbing issues can quickly complicate replacement.

Confirm Water-Supply Clearance

The skirted base can interfere with older shutoff valves positioned very close to the toilet.

Before purchasing, compare the supply-line location with the manufacturer's installation drawing.

Relocating a shutoff valve can add plumbing work.

10-Inch vs. 12-Inch Rough-In Models

Swiss Madison offers this toilet in both 10-inch and 12-inch rough-in configurations according to the supplied listing.

These are not interchangeable choices based on preference.

The correct model depends on the existing plumbing location.

Choose the 10-Inch Version When

Use the 10-inch configuration when the center of the floor drain is approximately 10 inches from the finished wall.

Choose the 12-Inch Version When

Use the 12-inch model when the bathroom uses the more common 12-inch rough-in.

Choosing the wrong version may create unwanted wall gaps or make installation impossible.

One-Piece vs. Two-Piece Toilet

One-Piece Advantages

A one-piece design generally provides:

• Cleaner appearance
• Fewer seams
• Easier exterior cleaning

Two-Piece Advantages

A two-piece toilet is usually:

• Easier to carry
• Easier to maneuver
• Often less expensive

For small bathrooms, the streamlined profile of the one-piece Sublime II may be worth the additional installation weight.

Round vs. Compact Elongated Toilet

A compact elongated toilet tries to combine elongated comfort with reduced projection.

A round toilet such as this Sublime II prioritizes space savings even more strongly.

If every inch matters, the round bowl is typically the more conservative choice.

Who Is the Sublime II Best For?

This model makes the most sense for homeowners who need:

• A 10-inch rough-in
• Compact front-to-back dimensions
• Round bowl
• Dual-flush operation
• One-piece design
• Skirted easy-clean exterior

It can be particularly useful in an older home's small bathroom where moving the drain would be expensive.

Who Might Prefer Another Toilet?

A different toilet may be better if you want:

• Elongated seating
• Chair-height bowl
• Integrated bidet
• Touchless flushing
• Standard 12-inch rough-in

The Sublime II is optimized more for compactness and plumbing compatibility than maximum seating space.

Common Buying Mistakes

Ordering the Wrong Rough-In

Measure before purchase.

Assuming Round Bowls Are as Spacious as Elongated Models

They save space by reducing front projection.

Ignoring Seat Height

Standard height may not suit users who prefer chair-height toilets.

Forgetting Supply-Valve Clearance

A skirted base can interfere with poorly positioned plumbing.

Trying to Install a One-Piece Toilet Alone

The 89-pound body can be difficult to place accurately.

Pros and Considerations

Advantages

• 10-inch rough-in
• Compact 24-inch depth
• One-piece construction
• Round bowl
• 1.1/1.6 GPF dual flush
• Fully glazed trapway
• Skirted easy-clean base
• Non-porous ceramic
• Scratch-resistant finish
• Soft-close seat
• Quick-release seat
• 3-inch installation access holes
• Glossy white modern appearance

Potential Considerations

• Round bowl offers less seating room than elongated designs
• Standard seat height may not suit taller or mobility-limited users
• One-piece body weighs approximately 89 pounds
• Rough-in must be measured precisely
• Supply-valve location should be checked
• Water-saving performance depends on appropriate use of the dual-flush buttons

Frequently Asked Questions

What rough-in does this toilet use?

This model is designed for a 10-inch rough-in.

Is there a 12-inch version?

The supplied product listing indicates that a 12-inch rough-in version is also available.

What are the dimensions?

Approximately 24 inches deep, 14 inches wide, and 28.75 inches high.

How much does it weigh?

Approximately 89 pounds.

Is the bowl round or elongated?

Round.

Is the toilet one piece?

Yes.

How much water does it use?

Approximately 1.1 GPF for the light flush and 1.6 GPF for the full flush.

Is it chair height?

No. The supplied description identifies it as standard height.

Is the trapway glazed?

Yes. It is described as fully glazed.

Is the trapway skirted?

Yes.

Is the toilet easy to clean?

The skirted base, one-piece body, and quick-release seat eliminate several common hard-to-clean areas.

Does it include a soft-close seat?

Yes.

Can the seat be removed for cleaning?

Yes. It uses a quick-release mechanism.

What are the side access holes for?

They provide access to mounting hardware during installation.

Is the ceramic scratch resistant?

The product description identifies the ceramic as scratch resistant and non-porous.

Is this a good toilet for small bathrooms?

Its short 24-inch depth, round bowl, and compact one-piece design make it particularly relevant for small spaces, provided the bathroom also has the correct 10-inch rough-in.

Final Thoughts

The Swiss Madison Sublime II One-Piece 10-Inch Rough-In Compact Toilet is designed for a problem that many standard toilets cannot solve: combining a very compact footprint with compatibility for a drain positioned only 10 inches from the wall.

Its strongest features are the short 24-inch projection, round bowl, one-piece ceramic body, dual 1.1/1.6 GPF flush, fully glazed trapway, skirted base, and quick-release soft-close seat. Together, these features make it particularly practical for small bathrooms and older homes where space and rough-in limitations matter more than having the largest possible seating area.

The most important buying step is measurement. Confirm the 10-inch rough-in, water-supply position, and available front clearance before ordering.

For buyers looking for a compact one-piece toilet with a 10-inch rough-in, round bowl, dual-flush water control, skirted trapway, and easy-clean design, the Swiss Madison Sublime II offers a practical and modern solution for tighter bathroom layouts.