How To Install a Toilet Flange in New Construction? [Step By Step]

You won’t want to take any shortcuts with construction or repairs and looking for a specific guide on how to install a toilet flange in new construction? Then this article may help you to install it easily.

In the new building, the installation of a toilet flange in a new construction differs from replacing an old flange and varies according to flooring type.

You need precise measures and cuts to guarantee that the flange fits firmly. Turn the flange to find the right position before securing it.

If you do not correctly install the toilet flange, you open up a whole variety of complications. These problems include leaking water, drainage gasses coming into your property, and unpleasant smells.

Therefore, if you try to install DIY, it is important to understand the process of installing a toilet flange in new construction.

How To Install a Toilet Flange in New Construction

How to do Installation in New Construction on a Concrete Surface?

To know how to install a toilet flange on a concrete floor, you have just need to follow the steps.

Step 1: Assemble The Materials

To install a toilet flange on the tile floor, firstly you have to assemble all the material you need to perform the job.

Check Out Our Expert Reviews on: Best 2 In 1 Showerhead

Fortunately, since you are in construction, you must have all the tools for your profession. You will need to include the hacksaw as well. When everything is ready, you can start working.

Step 2: Cutting Flange Soil Stack

You have to cut the flange soil stack to match the concrete surface to install the toilet flange on concrete. If it is uneven, they might not match well with each other.

The portable hacksaw is the tool to utilize for this purpose. It can be easily cut through the stack.

Step 3: Inserting The Closet Flange

Insert the closet flange of the toilet into the drainpipe in the shower room. The collar has to enter the concrete floor, and this makes it spin freely around the drainage pipe.

Test the system, and if it’s not working properly, the installation has to be something incorrect. Then you need to correct the mistake and try again. It should be well able to rotate.

Step 4: Apply Primer

Remove from the drainage pipe the flange of the closet and put it away to replace the toilet flange concrete floor. Then you can apply primer to it.

Spread the PVC primer both on the inside of the pipe and on the outside of the closet flange.

You May Like: How To Remove Flow Restrictor From Moen Shower Head?

Continue to cement every side of the flange of the toilet. Return it to the drainpipe as you observe it. If you miss this phase, it may stay incorrect, and you may need to do the task again.

Step 5: Rotate Rims To The Point

The flange features rotating rims. They are designed to adjust the angle they should be at. Make sure it is parallel to the wall behind it. To do this, you must rotate them to the point.

Step 6: String The Rim

String the rim with screws and nuts so that the flange does not move after installation. Stainless steel torches are the greatest type of torches to utilize. It’s because they’re not rusting or corroding.

Step 7: Thread The Needle

In the flange package, there are two closet bolts to secure the closet. Thread the needle upwards by putting it in the toilet flange collar.

You need to place the wax on the flange ring for installing a new toilet flange. You get through the task and may need to test the system to see if it works as well.

How to Install a Standard Toilet Flange in New Construction

How to Install a Standard Toilet Flange in New Construction

To install a new toilet flange, you just need to follow the steps.

Step 1: Measure Size of Flange

If the appropriate flange is not used, you end up with a shaky toilet that leaks. Therefore, careful measurements are required for a successful outcome. You must first determine the size of the drainpipe.

As you move, take detailed notes of all your measurements. Write down these and take your bathroom photos and pipes if necessary.

You May Like: How To Use a Steam Cleaner in The Bathroom?

You should also measure the center of the drain pipe from the finished wall to the middle of the toilet flange. If your drainpipe is four centimeters, a 4-inch flange is required.

Step 2: Cut the Toilet Flange

The drainpipe must be flush with the tile floor. This enables the proper amount of space for your toilet flange when inserted into the flooring.

Typically, this clearance is 1⁄4 an inch. Wipe the tube down and use a hacksaw to cut it.

Note: If the soil pipe is higher than or falls below the tile floor, it is incorrect, therefore carefully cut. You should use the tool knife to cut out the top and inside of the soil pipe from any jagged edges.

Step 3: Position the Toilet Flange

In this step, you have to put the flange on the drainpipe to ensure that it remains on the ground level. The flange should be parallel to the back wall and the two sidewalls should be parallel.

Check Out Our Expert Reviews on: Best Shower Curtain For Walk-In Shower

When dealing with sewer gasses from the exposed drainpipe, use a rag. Place the cloth in the soil pipe until the toilet is set up and ensure you can remove it with ease.

Step 4: Mark and Drill Holes

Once you are in the appropriate position for the flange, mark the direction of the four stainless steel screws. These screws you have to use to fasten the flange to the floor. Set aside the flange and pilot holes for the concrete screws.

Step 5: Spread Primer To the Toilet Flange

Now you must first choose where you want to install your object and then make sure you have designated the screw holes before you can apply the primer and cement.

Pre-check the location where the flange will sit to ensure it is free of debris and items that could fall into the hole.

The primer should be applied to the drainpipe and flange for better adherence. Allow the paint to completely dry, and then apply PVC cement carefully in the same locations.

Step 6: Install The Toilet Flange

Set the flange carefully in the correct position to ensure that the slots are again parallel to the wall. Insert the four screws and tighten them to fasten the flange to the floor.

Put the closet bolts that pass through the slots with the threads upward. Your toilet flange is ready now. 

Frequently Asked Question (FAQs)

Would you need to flush the toilet flange with the finished floor?

You must flush the toilet flange with the finished floor, if possible. The flange must be installed on the finished floor. This allows the tile floor to sustain the weight of the toilet and minimize the distance between the screening surfaces. This decreases the risk of leakage. If you have a rocking toilet, your toilet flange can be set too high.

Should you put the toilet flange sit on top of the tile?

You can be capable to install a toilet flange over tile in your toilet. When the flange is above the ground, the toilet can shake and break the seal causing leakage.

On the other hand, if the stick is too low, then only the wax seal leaves free space for installing a toilet flange on the tile.

This is undesirable since the wax ring is created so that big quantities of space are not suppressed against the toilet. This will probably lead to a temporary leak.

How do you fix a broken toilet flange?

The repair process is almost the same as the installation process unless you merely substitute particular pieces. I would always recommend you to complete a replacement if the damage is substantial or if you do not work on the particular sections.

You should first dismantle the flange to obtain the repair portion. Do not forget to put safety equipment like gloves and nasal masks on. It may not be clean to handle with naked hands.

Bottom Line

Installing a new toilet flange on a new building does not replace an old toilet. Old plumbing, uneven surfaces, or corroded equipment is not necessary. You must correctly place a flange in the closet.

It is not a tough chore to fix a toilet flange for new construction. Always ensure it is stable and does not block until the floor is secured. If you can do it properly, it might last longer.

by Uzzal Robiul
Uzzal Robiul is the Founder and Editor of Bathever, a website that he started to provide readers with the right guidance, solutions, and tips on bathroom fixtures. Uzzal’s expertise includes in-depth bathroom fixtures reviews and its solutions.

Leave a Comment