How to Install a Urinal in Your Garage

You know that you need a urinal in your home, but you’re unsure how to install one. You’re lucky because this article will show you how to install a urinal in your garage! Urinals are a great way to avoid going outside when nature calls, and they can be installed in any room of the house. So, if you’re ready to add a urinal to your garage, keep reading!

How to Install a Urinal in Your Garage

Many people choose to install a urinal in their garage because it is a room that is often used for dirty or messy tasks. By having a urinal in this room, you can avoid going outside and tracking dirt and mud into the house. Plus, you can close the door and keep the mess inside when you’re finished using the urinal! So, if you’re ready to install a urinal in your garage, this article is for you.

Summary: Installing a urinal in your garage is a cost-effective and practical option to save time, water, and money. It is a relatively simple process with the right tools and plumbing knowledge. In order to install a urinal in your garage, you will need to determine the location, install the necessary plumbing and fixtures, and connect the urinal properly to the existing water supply.

Required Tools and Materials

  • Urinal
  • Tape measure
  • Permanent marker
  • Level
  • Drill
  • Circular saw
  • Bolt cutter
  • Adjustable wrench
  • Cordless drill
  • (2) 1″ x 8″ boards, at least 3′ long
  • Construction adhesive
  • Silicone caulk
  • Phillips head screwdriver
  • Safety glasses
  • Work gloves
  • Earplugs

A Step by Step Guide on How to Install a Urinal in Your Garage

Step 1: Figure Out What Type of Urinal You Want

There are many different types of urinals on the market, so it is important to pick the right one for your needs. For example, if you are installing it in a garage, you will want to choose a model made for outdoor use.

Step 2: Measure the Space Where You Want to Install the Urinal

Once you have picked out the type of urinal you want, it is time to measure the space you plan to install it. Make sure to consider the width, height, and depth of the unit. You also need to leave enough room for people to stand around it without running into anything.

Measure the Space You Plan to Install Urinal

Step 3: Mark the Location of the Urinal on the Wall

Now that you have chosen the location for the urinal use a level to mark the spot on the wall. Once you have marked the spot, use a drill to make a hole in the wall. Ensure that the hole is large enough for the Urinal Flange to fit through.

Step 4: Drill Holes in the Wall for the Urinal Fixture

Once the hole is drilled, use a hammer and chisel to remove any extra material from the hole. Then use a drill to make holes in the wall for the Urinal Fixture. The holes should be about 2 inches away from the hole’s edge that you drilled for the flange.

Step 5: Cut Out the Space for the Urinal With a Circular Saw

Use a circular saw to cut out the space for the urinal. Be sure to cut out enough space to fit comfortably in the space so that the urinal will fit.

Step 6: Put the Urinal in Place and Secure It With Bolts

Now that you have cut out the space for the urinal, it is time to put it in place. First, use an adjustable wrench to tighten the bolts on the Urinal Fixture. Then use a cordless drill to attach the Urinal Flange to the wall.

Step 7: Apply Construction Adhesive and Caulk Around the Edges

Once the urinal is in place, use construction adhesive around the edge of the hole you drilled for the flange. Then use silicone caulk to seal the edges of the urinal.

Step 8: Attach the Supply Hose and Test the Urinal

Once the adhesive and caulk have dried, attach the supply hose to the urinal. Turn on the water and test to ensure that everything is working properly.

Attach the Supply Hose to the Urinal

Step 9: Water Line

If you are not using a water line, you will need to install one. Use a drill to make a hole in the wall where you want to install the waterline. Then use a saw to cut a hole in the floor for the water line to fit through. Feed the waterline through the hole in the floor and attach it to the urinal.

Step 10: Clean Up Any Messes and Enjoy Your New Urinal!

Once you have installed the urinal, it is time to clean up any messes made. Be sure to wear safety glasses and work gloves while doing this. Then enjoy your new urinal! These steps will help in how to install a urinal in your garage.

You Can Check It Out To Build a Laundry Room in Your Garage

Tips and Warnings


  • If you have a waterproofing membrane installed in your garage, make sure you install the urinal on top of it to avoid any potential leaks.
  • If you’re not comfortable installing the urinal yourself, consider hiring a professional to do it for you.
  • Ensure the urinal is properly vented to avoid any smells or health hazards.
  • If possible, try to find a urinal designed for outdoor use so it can withstand the elements.
Waterproofing Membrane Installed in Your Garage


  • If you’re not careful, you could easily damage your garage’s floor with the installation process.
  • Make sure to read the manufacturer’s instructions carefully before installing the urinal. Improper installation could lead to leaks or other problems.

Are Urinals Hygienic?

These days, most public restrooms have at least one urinal, and many have several. Urinals are a quick and efficient way to take care of business, but some people wonder if they are really all that hygienic. After all, you are essentially peeing in front of strangers.

While it is true that urinals can be a bit of an adjustment at first, there are actually several reasons why they can be more hygienic than toilets.

First of all, urinals are always flushed automatically after each use. This helps prevent the build-up of urine around the bowl, which can lead to bacteria growth. Secondly, urinals typically have splash guards to help contain any splashing.

And lastly, since everyone is using them, there is less opportunity for bacteria to grow on the surface. So if you’re still on the fence about using a urinal, these are some food for thought. And if you’re ready to give them a try, keep reading for instructions on how to install one in your garage.

You Can Check It Out To Raise a Roof on a Garage

Does a Urinal Need to Be Vented?

The simple answer is no, and a urinal does not need to be vented. Venting a urinal is only necessary if sewer gas is the potential to enter the bathroom. Sewer gas can cause health problems, so it’s important to prevent it from entering your home.

However, venting a urinal is not the only way to prevent sewer gas from entering your bathroom. You can also install a waterless urinal, which eliminates the need for a water connection and the possibility of sewer gas entering your bathroom. So, whether you choose to vent your urinal or install a waterless model, you can be confident that you’re taking steps to protect your family’s health.

Install a Waterless Urinal


Urinals are a great way to save water and keep your garage looking stylish. Follow these simple instructions on how to install a urinal in your garage, and you’ll be enjoying the benefits in no time!

You May Also Read: How to Install a Floor Drain in an Existing Garage

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Rick Kelly

I am Rick. I grew up helping my dad with his handyman service. I learned a lot from him about how to fix things, and also about how to work hard and take care of business. These days, I'm still into fixing things- only now, I'm doing it for a living. I'm always looking for new ways to help people grow and develop. That's why I have created this blog to share all my experience and knowledge so that I can help people who are interested in DIY repair.

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