How to Rough-In a Toilet in Concrete: A Step-by-Step Guide

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How to Rough in a Toilet in Concrete

Installing a toilet is a relatively simple task, but it’s important to get it right the first time. A poorly installed toilet can leak, wobble, or even overflow, causing damage to your bathroom and your home.

If you’re planning on installing a toilet in a concrete floor, there are a few things you need to know. In this article, we’ll walk you through the process of roughing in a toilet in concrete, from start to finish. We’ll cover everything you need to know, from choosing the right toilet to connecting the plumbing.

By the end of this article, you’ll have the confidence to install a toilet in concrete like a pro. So let’s get started!

Step Tools Instructions
1 Measuring tape, pencil, level, saw, hammer, chisel, plunger, toilet flange, wax ring, PVC pipe, couplings, t-connectors, PVC glue, primer Measure the distance between the two flange bolts on the toilet bowl. Mark this distance on the floor with a pencil.
2 Drill a hole in the concrete floor at the marked location. The hole should be large enough to fit the toilet flange. Use a saw to cut a piece of PVC pipe to the same length as the distance between the two flange bolts on the toilet bowl.
3 Insert the PVC pipe into the hole in the concrete floor. Apply PVC primer to the inside of the PVC pipe and the outside of the toilet flange.
4 Slide the toilet flange onto the PVC pipe. Apply PVC glue to the inside of the PVC pipe and the outside of the toilet flange.
5 Press the toilet flange into place until it is snug against the concrete floor. Allow the PVC glue to dry for at least 24 hours before using the toilet.

Roughing in a toilet is the process of installing the basic plumbing for a toilet, including the drain and water supply lines. This is a relatively simple task that can be completed by most DIYers. However, it is important to follow the proper steps to ensure that the toilet is installed correctly and that it will function properly.

This guide will provide you with the step-by-step instructions on how to rough in a toilet in concrete. We will also provide you with a list of the materials and tools that you will need.

Materials and Tools

The following materials and tools are needed to rough in a toilet in concrete:

  • Toilet
  • Wax ring
  • Cement
  • PVC pipe
  • Plumbing fittings
  • Hacksaw
  • Tape measure
  • Level
  • Pencil
  • Plumber’s putty
  • Gloves
  • Safety glasses

Step-by-Step Instructions

1. Locate the drain and water supply lines. The drain line for the toilet will typically be located in the floor of the bathroom, just behind where the toilet will be installed. The water supply line will typically be located in the wall behind the toilet.
2. Cut the PVC pipe to the correct length. The drain pipe should be cut to the same length as the distance between the drain line and the toilet. The water supply line should be cut to the same length as the distance between the water supply line and the toilet.
3. Install the PVC pipe. The drain pipe should be installed into the drain line. The water supply line should be installed into the water supply line.
4. Install the toilet flange. The toilet flange is a metal ring that is installed around the drain pipe. It provides a solid base for the toilet to sit on.
5. Apply plumber’s putty to the toilet flange. This will help to create a watertight seal between the toilet flange and the concrete.
6. Set the toilet on the toilet flange. Make sure that the toilet is level.
7. Apply wax to the wax ring. This will help to create a watertight seal between the toilet and the floor.
8. Lower the toilet onto the wax ring. Make sure that the toilet is seated properly on the wax ring.
9. Secure the toilet to the floor. This can be done with bolts or screws.
10. Connect the water supply line to the toilet. This can be done with a compression fitting or a threaded fitting.
11. Turn on the water supply to the toilet. Check for leaks.

Roughing in a toilet in concrete is a relatively simple task that can be completed by most DIYers. However, it is important to follow the proper steps to ensure that the toilet is installed correctly and that it will function properly.

If you have any questions about how to rough in a toilet in concrete, please consult with a qualified plumber.

How To Rough In A Toilet In Concrete?

Roughing in a toilet in concrete is a relatively simple process, but it is important to follow the steps carefully to ensure that the toilet is installed correctly.

1. Prepare the Site

The first step is to prepare the site for the toilet. This involves removing the old toilet, if there is one, and clearing away any debris. You will also need to make sure that the area is level and that there is enough space for the toilet.

2. Mark the Location of the Toilet

Once the site is prepared, you will need to mark the location of the toilet on the floor with a pencil. The toilet should be centered on the drain and about 12 inches from the wall.

3. Dig a Hole in the Concrete

Next, you will need to dig a hole in the concrete that is large enough to fit the toilet bowl and flange. The hole should be about 12 inches deep and 18 inches wide.

4. Install the Flange

Once the hole is dug, you can install the flange. The flange is a metal ring that sits on the edge of the hole and supports the toilet bowl. The flange should be level and should be installed so that the bolts are centered on the drain.

5. Connect the Water Supply

The next step is to connect the water supply to the toilet. The water supply line should be attached to the toilet valve and should be secured with a compression fitting.

6. Connect the Sewer Line

The final step is to connect the sewer line to the toilet. The sewer line should be attached to the toilet flange and should be secured with a wax ring.

Roughing in a toilet in concrete is a relatively simple process, but it is important to follow the steps carefully to ensure that the toilet is installed correctly. By following these steps, you can install a new toilet in your home with ease.

How do I rough in a toilet in concrete?

Roughing in a toilet in concrete is a relatively simple process, but it is important to follow the steps carefully to ensure that the toilet is installed correctly.

1. Mark the location of the toilet on the concrete. The toilet should be centered on the drain line and 12 inches from the back wall.
2. Drill a hole for the toilet flange. The hole should be 3 inches in diameter and 1 inch deep.
3. Insert the toilet flange into the hole. Make sure that the flange is level and flush with the concrete.
4. Apply a bead of sealant around the edge of the flange. This will help to prevent leaks.
5. Connect the toilet drain line to the flange. The drain line should be 3 inches in diameter and should be secured to the flange with a coupling nut.
6. Install the toilet bowl. The toilet bowl should be placed on the flange and secured with bolts.
7. Connect the water supply line to the toilet. The water supply line should be 1/2 inch in diameter and should be secured to the toilet with a compression fitting.
8. Turn on the water supply and check for leaks. If there are any leaks, tighten the connections until they stop.

What tools do I need to rough in a toilet in concrete?

The following tools are required to rough in a toilet in concrete:

  • A tape measure
  • A level
  • A drill
  • A hammer
  • A chisel
  • A saw
  • A putty knife
  • A sealant
  • A coupling nut
  • A compression fitting
  • Bolts

What materials do I need to rough in a toilet in concrete?

The following materials are required to rough in a toilet in concrete:

  • A toilet flange
  • A toilet drain line
  • A water supply line
  • A sealant
  • A coupling nut
  • A compression fitting
  • Bolts

**How much does it cost to rough in a toilet in concrete?

The cost of roughing in a toilet in concrete will vary depending on the size and type of toilet you choose, as well as the cost of the materials and labor. However, you can expect to pay between $100 and $200 for the materials and labor.

**How long does it take to rough in a toilet in concrete?

Roughing in a toilet in concrete can take anywhere from 1 to 2 hours, depending on your experience level.

**What are the risks of roughing in a toilet in concrete?

There are a few risks associated with roughing in a toilet in concrete, including:

  • The toilet may not be installed correctly, which could lead to leaks or other problems.
  • The toilet may not be level, which could cause it to wobble or leak.
  • The toilet may not be secure, which could lead to it tipping over.

**How can I avoid the risks of roughing in a toilet in concrete?

To avoid the risks of roughing in a toilet in concrete, it is important to follow the steps carefully and to use the right tools and materials. It is also important to make sure that the toilet is level and secure before using it.

In this blog post, we have discussed how to rough in a toilet in concrete. We have covered the steps involved in the process, as well as the tools and materials you will need. We have also provided tips on how to make the process easier and more successful.

We hope that this blog post has been helpful. If you have any questions, please feel free to leave them in the comments section below.

Author Profile

Liana Farrell
Liana Farrell
Liana Farrell is the owner of toiletty.com. She is a mom of two and is very passionate about home improvement.

Liana has ten years of home improvement experience, and in her own words, she said: “I love improving the home, and I’m very passionate about keeping the home in the best possible condition. I love it!”

Liana Farrell balances beauty and functionality when she goes about her home improvement jobs.