how to put toilet in laundry room

How to Install a Toilet in Your Laundry Room

By Mark MartinNovember 21, 2025

Planning to convert your laundry room into a combined bathroom and laundry space? Installing a toilet in your laundry room can be a practical and space-saving solution. However, it's essential to approach this project carefully, considering factors like plumbing, space, and local building codes. This guide will walk you through the process, helping you understand how to put a toilet in your laundry room safely and efficiently.

Before you start, it's crucial to ensure that your laundry room is large enough to accommodate a toilet. A typical toilet requires a minimum of 30 inches of space from the center of the toilet to any obstacle, such as a wall or cabinet. Additionally, you'll need to consider the space required for the toilet tank, plumbing, and clearance for the toilet seat.

Planning Your Laundry Room Toilet Installation

Proper planning is key to a successful toilet installation in your laundry room. Here are some factors to consider:

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1. **Plumbing**: Check the existing plumbing in your laundry room. If there's no plumbing nearby, you may need to hire a professional plumber to install new pipes. Keep in mind that moving or installing new plumbing can be expensive and may require permits.

2. **Ventilation**: Installing a toilet in your laundry room may require additional ventilation. Consult with a professional to ensure that your room has adequate ventilation to prevent mold and mildew growth.

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Choosing the Right Toilet

When selecting a toilet for your laundry room, consider the following:

1. **Size**: Choose a toilet that fits well within the available space. Compact toilets are an excellent option for small laundry rooms.

2. **Style**: Opt for a toilet with a simple, modern design that complements your laundry room's aesthetic.

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3. **Efficiency**: Consider a dual-flush or low-flow toilet to save water and reduce your environmental impact.

Preparing Your Laundry Room

Before installing the toilet, prepare your laundry room by:

1. **Turning off the water**: Locate and turn off the water supply to your laundry room to prevent any leaks or accidents during the installation process.

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2. **Removing old fixtures**: If there are any existing fixtures in the way, remove them to make space for the new toilet.

3. **Laying out the toilet**: Position the toilet in its final location and mark the bolt holes to ensure accurate placement.

Installing the Toilet

Now that you've planned and prepared, it's time to install the toilet:

1. **Install the wax ring**: Apply a new wax ring to the bottom of the toilet's base. This will create a watertight seal between the toilet and the drain.

2. **Position the toilet**: Carefully lower the toilet onto the wax ring, ensuring that the bolts align with the holes you marked earlier.

3. **Secure the bolts**: Tighten the bolts using a wrench, being careful not to overtighten and crack the toilet base.

4. **Connect the water supply**: Attach the water supply line to the toilet's water inlet and turn on the water supply. Check for any leaks and tighten connections as needed.

5. **Install the tank**: If your toilet has a separate tank, install it according to the manufacturer's instructions. Connect the tank to the toilet bowl using the provided hardware.

6. **Test the toilet**: Flush the toilet several times to ensure that it's working correctly and that there are no leaks.

Finishing Touches

Once the toilet is installed, complete the following steps to finish the project:

1. **Install the toilet seat**: Attach a new toilet seat to the toilet bowl using the provided hardware.

2. **Caulk the base**: Apply caulk around the base of the toilet to create a watertight seal and prevent moisture from damaging the floor.

3. **Test the toilet again**: After allowing the caulk to dry, test the toilet one more time to ensure that it's functioning correctly and that there are no leaks.

Installing a toilet in your laundry room can be a rewarding project that adds functionality and convenience to your home. By following this guide and taking the time to plan and prepare, you can successfully transform your laundry room into a combined bathroom and laundry space. Don't forget to consult with a professional if you encounter any challenges or have concerns about your project.