Can Your Toilet Flange Sit Above The Floor? Here’s What You Should Know

When embarking on a bathroom remodeling project, understanding the intricacies of plumbing fixtures is crucial. One common question that arises is whether a toilet flange can sit above the floor. This blog post delves into this topic, exploring the technicalities, practical considerations, and potential solutions to ensure a successful bathroom renovation.

What is a Toilet Flange?

A toilet flange is a metal or plastic ring that connects the toilet to the drainpipe. It provides a secure and watertight seal, preventing leaks and ensuring proper drainage. Typically, the flange is installed flush with the floor, but certain circumstances may necessitate an above-floor installation.

Can a Toilet Flange Sit Above the Floor?

Yes, in certain cases, a toilet flange can be installed above the floor. This is primarily done when the subfloor is too thick or uneven to allow for a flush installation. However, it’s important to note that this is not an ideal solution and should only be considered as a last resort.

Why Should a Toilet Flange Not Sit Above the Floor?

Installing a toilet flange above the floor can lead to several issues:

• Wobbling Toilet: The elevated flange creates a gap between the toilet base and the floor, potentially causing the toilet to wobble or shift.
• Water Leakage: The seal between the toilet base and the flange may not be secure, resulting in water leaks.
• Aesthetic Concerns: An exposed flange above the floor is unsightly and can detract from the overall appearance of the bathroom.

When is an Above-Floor Flange Necessary?

Despite the disadvantages, there are instances where installing a toilet flange above the floor is unavoidable:

• Thick Subfloor: When the subfloor is exceptionally thick (over 1.5 inches), it may be impossible to recess the flange flush with the floor.
• Uneven Subfloor: If the subfloor is uneven or slopes, a flush installation may not be feasible, requiring an above-floor flange to create a level surface.
• Existing Plumbing: In some cases, existing plumbing may interfere with a flush installation, necessitating an above-floor flange to accommodate the pipe layout.

Solutions for an Above-Floor Flange

If an above-floor flange is necessary, there are ways to minimize its impact on the bathroom’s aesthetics and functionality:

• Use a Flange Extender: A flange extender is a device that raises the flange to the desired height, providing a more secure base for the toilet.
• Install a Decorative Ring: A decorative ring can be placed around the flange to conceal it and enhance the overall appearance of the bathroom.
• Choose a Toilet with a Concealed Base: Some toilets have a concealed base that can help hide the exposed flange, creating a more seamless look.

How to Install an Above-Floor Flange

Installing an above-floor flange requires careful preparation and attention to detail:

1. Mark the Location: Determine the center of the drainpipe and mark the location for the flange.
2. Cut the Subfloor: Using a jigsaw or reciprocating saw, cut a hole in the subfloor that is slightly larger than the flange.
3. Install the Flange: Place the flange in the hole and secure it with bolts or screws.
4. Level the Flange: Use a level to ensure that the flange is level and flush with the top of the subfloor.
5. Wax Ring: Apply a wax ring to the bottom of the toilet base and place it over the flange.
6. Tighten the Bolts: Tighten the bolts that secure the toilet to the flange, but avoid overtightening.

Key Points: Addressing the Flange Conundrum

Whether or not a toilet flange can sit above the floor is a question that requires careful consideration. While it is possible in certain circumstances, it is generally not the preferred method. If an above-floor flange is unavoidable, there are solutions available to minimize its impact on functionality and aesthetics. By understanding the technicalities and practicalities involved, homeowners can make informed decisions and ensure a successful bathroom renovation.

Questions You May Have

Q1: What are the signs of a loose toilet flange?
A: A loose flange can cause the toilet to wobble or shift, and may also lead to water leaks around the base.

Q2: How do I seal an above-floor toilet flange?
A: Apply a generous amount of silicone caulk around the base of the flange to create a watertight seal.

Q3: Can I install a toilet on a subfloor that is not level?
A: It is not recommended to install a toilet on an uneven subfloor, as it can cause the toilet to wobble or leak. If the subfloor is not level, you should level it before installing the toilet.

Q4: What is the best way to secure a toilet to an above-floor flange?
A: Use bolts or screws to secure the toilet to the flange, and tighten them until the toilet is stable but not overtightened.

Q5: How often should I check the toilet flange for leaks?
A: It is a good idea to check the toilet flange for leaks periodically, especially if you have noticed any signs of a loose or damaged flange.