One-Piece vs Two-Piece Toilets: Which Is Better for Your Bathroom?

When it comes to choosing the right toilet for your home, understanding the differences between one-piece and two-piece models can help you make an informed decision. Both types have unique advantages and considerations, and the best choice depends on your specific needs, bathroom space, and budget.

🚽 What Is a One-Piece Toilet?

A one-piece toilet features a seamless design where the tank and bowl are fused into a single unit. This design offers a sleek, modern appearance and is often easier to clean due to the lack of crevices where dirt can accumulate. Browse our one-piece toilets.

Pros:

• Sleek, modern design
• Easier to clean due to seamless construction
• Often more durable with fewer parts to maintain

Cons:

• Generally heavier, requiring more effort during installation
• Higher initial cost compared to two-piece models
• Limited variety in design and configurations

TOTO Nexus One-Piece Toilet, 1.28 GPF, Elongated Bowl, Universal Height, WASHLET+ Connection

🚽 What Is a Two-Piece Toilet?

A two-piece toilet consists of a separate tank and bowl, which are connected during installation. This traditional design is widely available and offers flexibility in terms of design and configuration. Browse our two-piece toilets.

Pros:

• Easier to transport and maneuver due to separate parts
• More affordable, with a wide range of options available
• Easier to repair or replace individual components

Cons:

• More crevices, making cleaning slightly more challenging
• Potential for leaks at the tank-to-bowl connection over time
• Bulkier appearance may not suit all bathroom styles

TOTO Drake Two-Piece Elongated Toilet, 1.28 GPF

The Drake is the two-piece most people end up comparing against — how tall a standard height Drake is has the exact dimensions.

🛠️ Factors to Consider Before Buying

When deciding between a one-piece and two-piece toilet, consider the following factors:

• Rough-in. Measure from the finished wall to the centre of the bolts at the base of your current toilet before anything else. 12" is standard in Canada; 10" and 14" need a toilet built for them, and this cannot be fixed after delivery. See toilets with a 10-inch rough-in and our full rough-in size guide.
• Bathroom space. One-piece toilets are usually more compact, which helps in a small bathroom.
• Seat height. Standard is about 15"; universal height is 17–18" and easier to stand up from. See standard or universal height.
• Budget. Two-piece toilets are generally more affordable, making them a good choice for cost-conscious homeowners.
• Cleaning. If ease of cleaning is a priority, a one-piece toilet’s seamless design may be more suitable.
• Installation. Two-piece toilets are easier to handle and install, especially in tight spaces or up a flight of stairs.
• Style. Consider the overall look of your bathroom and which design complements it best.

A Third Option: Wall-Hung

If neither shape suits the room, a wall-hung toilet mounts the bowl off the floor with the tank concealed inside the wall in an in-wall tank and carrier. It frees up visual floor space and makes cleaning underneath trivial, but it is a bigger job — the wall has to be opened up. Our guide to the practical benefits of wall-hung toilets covers what is involved.

🏁 Final Thoughts

Both one-piece and two-piece toilets have their unique benefits. One-piece models offer a modern, streamlined look and are easier to clean, while two-piece models provide flexibility, affordability, and ease of installation. Your choice should align with your bathroom’s size, your budget, and your personal preferences.

If you are also choosing a brand, see TOTO vs. Kohler and the pros and cons of TOTO toilets.

Ready to look? Browse all toilets, or narrow it to one-piece, two-piece or smart toilets. If you would like a hand, get in touch — send us your rough-in measurement and we will tell you what fits.