How to Fix Gap Between Toilet And Wall (Step-By-Step)

When a toilet is installed, it’s important to measure everything and then set it up.

The wrong size can ruin the look of your bathroom. This can include a situation where the toilet does not flush to the wall.

When this happens, you are going to want to learn how to fix the gap between a toilet and the wall.

To fix a gap between a toilet and the wall, it’s important to measure the distance, cut a piece of wood, and wedge it into the gap. You can then paint the wood to match everything around it. The second solution is to remove the toilet and replace it with the correct size.

For the most part, you don’t have to worry about it unless the gap is substantial. We don’t recommend doing anything if it is a gap of fewer than 2 inches. This is unnoticeable and something most people will overlook even as buyers.

If it is more than 2 inches then you can start to look at the solutions recommended here.

It comes down to your specific situation and what you are going to use as a toilet gap filler.

This article will explain how to fix the gap between a toilet and the wall in greater detail.

Best Toilet Brush (EDITOR’S CHOICE)

MR.SIGA Soft Bristle Toilet Brush with Holder, Gray & Black,...
  • NON-SCRATCH BRISTLES - Durable and flexible TPR fibers create long lasting bristles for strong cleaning ability but won't...
  • EFFICIENT CLEANING - TPR bristles are not easy to get deformed, removes stains easily, the under-rim brush design allows...
  • SANITARY & STYLISH DESIGN - Simple and elegant design works for any bathroom, it's a must-have accessory for your bathroom...

Last update on 2024-05-14 / Affiliate links / Images from Amazon Product Advertising API

Steps To Fix Gap Between Toilet And Wall

1. Measure The Gap

The first thing you are going to do is measure the gap.

It’s important to have an accurate measurement of how extensive the gap is. If it is a small gap, you might not have to do anything as it will only be a visual concern.

If it is a substantial gap then it might look odd and not work the way you want it to.

Due to this, it is best to start with the basics and take your measurements.

how to fix gap between toilet and wall

2. Install Wood Behind The Toilet

Next, you are going to get a piece of wood.

This can be any type of wood that is going to go along with the rest of the bathroom. Just make sure it can be cut into a well-sized piece that fits right behind the toilet.

Once you have cut it, you are going to wedge it right into that gap.

This means the gap will be gone from the top and the sides.

In some cases, you might have to install multiple pieces along the top and sides. This depends on your specific toilet.

If that is the case, just drill the wood into the wall.

3. Paint The Surface To Match Wall

The final step is to work on the surface of the wood.

You might not want to leave it as-is. This is not going to look as nice, which means it is going to stand out.

To fix this issue, just grab a little bit of paint and go over it with a couple of coats. Look to match with the walls.

This will make the transition look natural.

how to fix gap between toilet and wall

Should There Be A Gap Between Toilet and Wall?

There should not be a gap between a toilet and the wall. In some cases, a toilet might not sit flush against the wall and remain usable. However, it’s not recommended to have a toilet that does not sit flush against the wall as it’s not aesthetically pleasing.

Take the time to figure out what you prefer.

If you believe it’s fine then there is nothing wrong with it. A lot of people don’t even notice a gap that is less than 2 inches.

If it is more than 2 inches then you might have to take action.

How Do You Fill The Space Behind a Toilet?

To fill the space behind a toilet, it’s recommended to use a simple piece of wood. Take the wood, cut it into a well-sized piece after taking measurements, and then wedge it behind the toilet.

This is a simple fix and one that can be done quickly.

Your goal is to make sure that gap is airtight and full with wood. If you do that, you are going to be more than happy with the results.

Final Thoughts

These are the main steps on how to fix the gap between a toilet and the wall.

To fix the gap between a toilet and the wall, measure the gap, cut a piece of wood based on those measurements, and wedge it behind the toilet. If necessary, you can drill the wood into the back wall to cover the sides.

It often depends on the layout of the bathroom and where the toilet is set up.

Read More On Bathrooms:

  1. How Do Toilet Drains Look?
  2. Which Silicone Caulk For Toilet Base?
  3. Why Is My Toilet So Noisy?
  4. How To Prevent Toilet Ring
  5. Why Is Toilet Always Swirling?
  6. How To Get Stuck Poop Out Of Toilet