How to Install a Toilet Flange in New Construction: A Step-by-Step Guide

AvatarByLiana Farrell Toilet Queries

Installing a toilet flange in new construction is a relatively simple task, but it is important to do it correctly in order to prevent leaks and other problems. This guide will walk you through the process step-by-step, so you can be confident that you’re doing it right.

We’ll start by discussing the materials you’ll need, then we’ll walk you through the steps of installing the flange. Finally, we’ll provide some tips for troubleshooting any problems that you may encounter.

By the end of this guide, you’ll be able to install a toilet flange like a pro!

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Step Instructions Image
1 Locate the center of the toilet drain opening in the floor.
2 Mark the location of the toilet flange on the floor with a pencil.
3 Drill a hole in the floor at the marked location, large enough to fit the flange.
4 Insert the flange into the hole in the floor.
5 Secure the flange to the floor with screws.

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How To Install A Toilet Flange In New Construction

Tools and Materials

The following tools and materials are required to install a toilet flange in new construction:

  • Toilet flange. The toilet flange is the metal or plastic ring that connects the toilet to the drainpipe. It is important to choose a flange that is the correct size for your toilet.
  • Wax ring. The wax ring is a gasket that creates a watertight seal between the toilet and the flange. It is important to use a quality wax ring that is the correct size for your toilet.
  • Cement. Cement is used to secure the flange to the floor. It is important to use a type of cement that is specifically designed for use with plumbing.
  • Tape measure. A tape measure is used to measure the distance between the toilet and the wall.
  • Level. A level is used to make sure that the flange is installed level.
  • Pencil. A pencil is used to mark the location of the flange on the floor.
  • Saw. A saw is used to cut the hole in the subfloor.
  • Hammer. A hammer is used to drive the flange into the floor.
  • Chisel. A chisel is used to remove any excess cement from around the flange.
  • Pliers. Pliers are used to hold the wax ring in place while the cement dries.
  • Tape. Tape is used to secure the wax ring to the flange.
  • Trowel. A trowel is used to apply the cement to the flange.

Preparing the Floor

The first step in installing a toilet flange is to prepare the floor. This involves marking the location of the flange on the floor, cutting a hole in the subfloor, and digging a trench around the hole.

To mark the location of the flange, measure the distance between the toilet and the wall. Then, use a pencil to mark the location of the flange on the floor.

To cut a hole in the subfloor, use a saw to cut a hole that is slightly larger than the flange. The hole should be deep enough to allow the flange to be installed flush with the floor.

To dig a trench around the hole, use a chisel to remove any excess concrete from around the hole. The trench should be deep enough to allow the flange to be installed level.

Once the floor is prepared, you can begin installing the flange.

Installing the Flange

To install the flange, first apply a bead of cement around the inside of the flange. Then, place the flange in the hole in the floor and press it down firmly. Make sure that the flange is level.

Next, apply a bead of wax around the outside of the flange. Then, place the toilet on the flange and press down firmly. Make sure that the toilet is centered on the flange.

Finally, secure the toilet to the flange with pliers. Use a wrench to tighten the nuts on the bolts that connect the toilet to the flange.

Once the toilet is secured to the flange, you can begin to install the plumbing.

Installing a toilet flange in new construction is a relatively simple process. By following these steps, you can ensure that your toilet is installed correctly and that it will function properly for years to come.

Here are some additional tips for installing a toilet flange in new construction:

  • Make sure that the flange is installed level. If the flange is not level, the toilet will not sit properly and may leak.
  • Use a quality wax ring. A quality wax ring will create a watertight seal between the toilet and the flange.
  • Secure the toilet to the flange with pliers. Make sure that the nuts on the bolts are tight enough to prevent the toilet from moving.
  • Follow the manufacturer’s instructions for installing the toilet. Each toilet is different, so it is important to follow the manufacturer’s instructions to ensure that the toilet is installed correctly.

By following these tips, you can install a toilet flange in new construction with ease.

Installing the Toilet Flange

To install the toilet flange, you will need the following materials:

  • A toilet flange
  • A hacksaw
  • A drill
  • A screwdriver
  • A level
  • Cement
  • Caulk

Step 1: Mark the Location of the Flange

The first step is to mark the location of the flange on the floor. To do this, measure the distance from the back of the toilet to the center of the drain pipe. Then, mark this distance on the floor with a pencil.

Step 2: Cut the Hole in the Floor

Once you have marked the location of the flange, you need to cut a hole in the floor. To do this, use a hacksaw to cut a hole that is large enough to fit the flange.

Step 3: Install the Flange

Now that you have cut the hole in the floor, you can install the flange. To do this, place the flange in the hole and align it with the marks you made. Then, apply a bead of caulk around the edge of the flange.

Step 4: Press the Flange into the Cement

Once you have applied the caulk, press the flange into the cement. Then, use a screwdriver to tighten the screws that are attached to the flange.

Step 5: Test the Flange

Once you have installed the flange, you need to test it to make sure that it is installed correctly. To do this, turn on the water supply to the toilet and allow it to run for a few minutes. Then, check for leaks around the flange. If there are no leaks, the flange is installed correctly.

Testing the Flange

To test the flange, you will need to turn on the water supply to the toilet and allow it to run for a few minutes. Then, check for leaks around the flange. If there are no leaks, the flange is installed correctly.

If you do find a leak, you will need to tighten the screws that are attached to the flange. If the leak persists, you may need to replace the flange.

Installing a toilet flange is a relatively simple task, but it is important to make sure that it is done correctly. By following these steps, you can ensure that your toilet is installed properly and that you will not have any leaks.

How do I install a toilet flange in new construction?

1. Measure the rough opening for the toilet. The rough opening is the hole in the floor where the toilet will sit. It should be 12 inches wide by 14 inches deep.
2. Cut the flange to size. The flange should be slightly larger than the rough opening so that it can be secured to the floor.
3. Apply a bead of silicone sealant around the edge of the flange. This will help to create a watertight seal.
4. Secure the flange to the floor with screws. Use four screws to secure the flange to the floor, two in each corner.
5. Insert the toilet bolts through the holes in the flange. The toilet bolts should be long enough to go through the flange and into the toilet.
6. Attach the toilet to the flange. Place the toilet on top of the flange and tighten the nuts on the toilet bolts.
7. Connect the water supply line to the toilet. The water supply line should be connected to the toilet valve on the wall.
8. Connect the drain line to the toilet. The drain line should be connected to the sewer line in the floor.

What are the different types of toilet flanges?

There are two main types of toilet flanges: wax ring flanges and metal flanges.

  • Wax ring flanges are the most common type of toilet flange. They are made of plastic and have a built-in wax ring that creates a watertight seal between the toilet and the floor.
  • Metal flanges are made of metal and do not have a built-in wax ring. Instead, a separate wax ring must be installed around the toilet before it is placed on the flange.

Which type of toilet flange is best?

The best type of toilet flange for you will depend on your individual needs and preferences. Wax ring flanges are easier to install, but metal flanges are more durable.

How do I install a wax ring flange?

1. Measure the rough opening for the toilet. The rough opening is the hole in the floor where the toilet will sit. It should be 12 inches wide by 14 inches deep.
2. Cut the flange to size. The flange should be slightly larger than the rough opening so that it can be secured to the floor.
3. Apply a bead of silicone sealant around the edge of the flange. This will help to create a watertight seal.
4. Secure the flange to the floor with screws. Use four screws to secure the flange to the floor, two in each corner.
5. Insert the toilet bolts through the holes in the flange. The toilet bolts should be long enough to go through the flange and into the toilet.
6. Attach the toilet to the flange. Place the toilet on top of the flange and tighten the nuts on the toilet bolts.
7. Connect the water supply line to the toilet. The water supply line should be connected to the toilet valve on the wall.
8. Connect the drain line to the toilet. The drain line should be connected to the sewer line in the floor.

How do I install a metal flange?

1. Measure the rough opening for the toilet. The rough opening is the hole in the floor where the toilet will sit. It should be 12 inches wide by 14 inches deep.
2. Cut the flange to size. The flange should be slightly larger than the rough opening so that it can be secured to the floor.
3. Apply a bead of silicone sealant around the edge of the flange. This will help to create a watertight seal.
4. Secure the flange to the floor with screws. Use four screws to secure the flange to the floor, two in each corner.
5. Insert the toilet bolts through the holes in the flange. The toilet bolts should be long enough to go through the flange and into the toilet.
6. Attach the toilet to the flange. Place the toilet on top of the flange and tighten the nuts on the toilet bolts.
7. Connect the water supply line to the toilet. The water supply line should be connected to the toilet valve on the wall.
8. Connect the drain line to the toilet. The drain line should be connected to the sewer line in the floor.

What are the common mistakes people make when installing a toilet flange?

Some of the most common mistakes people make when installing a toilet flange include:

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    Installing a toilet flange in new construction is a relatively simple process, but it is important to do it correctly in order to ensure a leak-free seal. By following the steps outlined in this guide, you can install a toilet flange like a pro.

Here are the key takeaways from this guide:

  • The toilet flange is the critical component that seals the toilet to the drainpipe.
  • The flange must be installed level and in the correct position to create a proper seal.
  • The flange should be secured to the subfloor with screws or bolts.
  • A wax ring should be installed between the toilet and the flange to create a watertight seal.

By following these steps, you can install a toilet flange in new construction that will last for years to come.

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.