Who this guide is for
- Homeowners choosing a toilet for a new or remodelled bathroom
- People comparing one-piece, two-piece and wall-hung designs
- Anyone planning a compact or powder-room layout
- Renovators briefing a plumber on a toilet choice
- Planners considering configuration and fit
One-piece and two-piece toilets
Two-piece toilets, with a separate tank and bowl, are the most common and familiar. One-piece designs combine tank and bowl into a single unit with a sleeker look and fewer seams to clean.
The choice is partly aesthetic and partly about cleaning and footprint. Neither is universally better; it depends on the look and space you want.
Wall-hung and concealed-tank designs
Wall-hung toilets mount on the wall with the tank concealed behind it, giving a floating, contemporary look and easier floor cleaning. They depend on suitable support and concealed plumbing.
These suit clean, modern bathrooms but require careful planning for the supporting structure and access, which must be handled by qualified trades.
- Wall-hung gives a floating, modern look
- Concealed tanks need a suitable wall and support
- Easier floor cleaning underneath
- Requires professional planning for support and access
Configuration and rough-in considerations
How a toilet connects to the existing plumbing, often described by its rough-in, affects which models will fit a given spot. Bowl shape and height are further configuration choices.
These practical factors decide what is feasible in your bathroom, so they are best confirmed with a plumber early rather than after choosing a model.
Matching the toilet to the space
Compact bathrooms and powder rooms benefit from smaller footprints and careful clearance planning, while larger bathrooms allow more freedom. Comfort, clearance and how the toilet sits among other fixtures all matter.
Plan the toilet alongside the rest of the layout, considering clearances and how the choice fits the room as a whole.
Toilet planning checklist
- 1Decide between one-piece, two-piece and wall-hung
- 2Consider cleaning ease and seams for each type
- 3Check whether a wall-hung design suits your wall
- 4Confirm rough-in and connection feasibility with a plumber
- 5Consider bowl shape and height
- 6Plan clearances around the toilet
- 7Match the footprint to the room size
- 8Leave plumbing and supports to a qualified plumber
Common mistakes to avoid
- Choosing a model without checking it will connect and fit
- Assuming a wall-hung toilet suits any wall
- Ignoring clearance and comfort around the toilet
- Overlooking cleaning and seams in the type choice
- Selecting a large footprint for a compact room
- Leaving configuration questions until after purchase
When to involve a professional
- A qualified plumber must handle connections and supports
- Wall-hung designs need suitable structural support
- What fits depends on the existing layout and rough-in
- Feasibility and requirements vary by bathroom and location
Frequently asked questions
Questions readers ask about this topic
What are the main types of toilet?
The common categories are two-piece with a separate tank and bowl, one-piece combining them into a single unit, and wall-hung with a concealed tank. Each differs in look, footprint and cleaning profile.
Are wall-hung toilets a good idea?
They give a floating, modern look and easier floor cleaning, but they depend on suitable support and concealed plumbing that must be planned and installed by qualified trades. Suitability depends on the wall and layout.
What is a toilet rough-in?
Rough-in broadly describes how a toilet connects to the existing plumbing, which affects which models fit a given spot. It is a practical factor best confirmed with a plumber before choosing a model.
How do I choose a toilet for a small bathroom?
Compact bathrooms benefit from smaller footprints and careful clearance planning. Consider how the toilet sits among other fixtures, and confirm fit and connection feasibility with a plumber.
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