Best Solutions for 8-inch and 9-inch rough-in toilets

If you have 8-inch or 9-inch rough-in in your bathroom and looking for 8-inch rough-in toilets and 9-inch rough-in toilets then, what are the options available for you? Unfortunately, there is no toilet with an exact 8-inch or 9-inch size. So, what can you do?… How will you get 8-inch rough-in toilets or 9-inch rough-in toilets?

We will give you the best replacement solutions for 8-inch and 9-inch rough-in toilets. We will explain the solutions here in this article and get you out of this situation.

The standard rough-in size for the toilets is 12 inches. Therefore, most of the toilet manufacturers make 12-inch rough-in toilets. Besides, few models of 10-inch rough-in toilets and 14-inch rough-in toilets are also available.

But, you are looking for the best replacement solutions for 8-inch and 9-inch rough-in toilets. And, in this article, you will get what you are looking for. All you have to do is read this article to the last.

Now, let us get started.

Best Replacement Solutions for 8-inch and 9-inch rough-in toilets

We will provide you 4 of the best replacement solutions for 8-inch and 9-inch rough-in toilets. With the help of these solutions, you can deal with the uncommon rough-in scenario. These solutions will give you the best and easy options for 8-inch or 9-inch rough-in settings.

Below are the 4 replacement solutions for 8-inch rough-in toilets or 9-inch rough-in toilets:

1. Make Use Of an Offset Commode Flange

8-inch or 9-inch rough-in toilets replacement

One of the best and easy ways to cure the problem of 8-inch rough-in toilets or 9-inch rough-in toilets is using a 1 or 2-inch offset commode flange. You can change the drainage pipe outlet of your existing commode flange with the 1-inch or 2-inch offset commode flange.

Commode Flange is the drain outlet connection accessory/device on the floor, the commode is bolted into it. You will currently have a conventional commode flange shaft that extends just below the surface of the floor to connect to the primary toilet/sewer drain pipeline.

To cope with the situation for 8-inch rough-in toilets or 9-inch rough-in toilets, you are required to get an offset commode flange with a 1 or 2 inch balancing out capacity. With that being said, the offset commode flange will help you move the center even more from the wall surface by one or two inches.

As a result, you can increase the rough-in size from 8-inch or 9-inch to 10 inches. It allows you to buy and install 10-inch rough-in toilets like the 10-inch Toto Drake toilet.

You can have one of the popular commode flanges, the SIOUX 889-GPOM offset flange. It is a 1-1/2″ (1.5″) offset flange that will increase the rough-in to 9-1/2 inches. By having this offset commode flange you can install the 9″ rough-in fitting toilet i.e., 10-inch Toto Drake toilet. Consequently, it aids the problem of searching for 8-inch rough-in toilets or 9-inch rough-in toilets. We can say, it is one of the best replacement solutions for 8-inch and 9-inch rough-in toilets.

8-inch rough-in toilets or 9-inch rough-in toilets
SIOUX 889-GPOM

Like said earlier, it is the easiest and common solution to replace the toilets with 8-inch or 9-inch rough-in. Moreover, you can also look for much larger toilet offset flanges, they will increase your rough-in size to make it even 12-inch rough-in.

However, doing so will require you to rip off the toilet floor and create a bigger hole to install the flange. We will suggest you be on the safer side and install a small offset commode flange. It will limit the damages.

2. Install 10 ″ Toto Drake CST744EF Toilet

8-inch rough-in toilets or 9-inch rough-in toilets

Another way and one of the best replacement solutions for 8-inch and 9-inch rough-in toilets is to install the 10 ″ Toto Drake CST744EF. It is used by many people to fit in a shorter rough-in size (less than 10 inches).

The TOTO Drake CST744EF can fit into 9, 9.25, 9.5, and also 9.75-inch rough-ins. The reason behind this is when you install this toilet it leaves a gap of 1.1 inches clearance in the back between the tank and the wall surface.

You will find several reviews and comments on Amazon stating that people had successfully installed this model for 9-inch rough-in. This could be because the horn of this 10 ″ Toto is 2-5/8 inches and, people may have shifted the bolts away from the wall by 1/4 inch off-center and they got their 9″ rough-in.

TOTO toilets are already one of the best in the market and, Drake CST744EF is the one that cures the problem of uncommon rough-in and fits into a 9-inch rough-in size.

3. Wall Renovation

Another way to deal with the 8-inch rough-in toilets or 9-inch rough-in toilets situation is to renovate your wall. In this way, you can increase the distance between the toilet’s drain and the wall surface.

Depending on whether you have an 8-inch rough-in or 9-inch rough-in, you will need to relocate the wall back 1 or 2 inches to accommodate a 10″ rough-in toilet.

If you want to do it on your own without any professional assistance then, we have to mention here that you can only move non-load-bearing walls (also called dividing wall surfaces or partition walls) without any professional help. But still, we will suggest you seek professional assistance for the work.

4. Install A Wall-Mounted Toilet

If you do not wish to renovate your toilet wall or dig up the floor to change the drainage pipe outlet of your existing commode flange with the 1-inch or 2-inch offset commode flange, installing wall-mounted toilets or rear outlet toilets could be one of the best replacement solutions for 8-inch and 9-inch rough-in toilets.

A wall-mounted toilet is a fully functional toilet mounted on a wall which also adds an edge to your bathroom decor. They are getting popular day by day and so as the rear outlet toilets. Rear outlet toilets or back outlet toilets are practical and useful if you can not tear up the entire bathroom floor to install the plumbing.

However, you need to plumb a new commode waste line through the wall surface. Also, you will need to install a wall-mounted toilet carrier to attach the toilet to the wall. For this, you have to seek professional help. So, be ready to stress on your pocket.

On the other hand, rear outlet toilets or rear discharge toilets are a cheaper alternative. Instead of wall-hung toilets, you can install a rear outlet toilet as the replacement solution for 8-inch rough-in toilets or 9-inch rough-in toilets. In that case, you won’t have to tear up the entire bathroom floor to install the plumbing.

Read our article on wall-hung toilets and rear outlet toilets to have more detailed knowledge about them.

Final thoughts

These were our best replacement solutions for 8-inch and 9-inch rough-in toilets. With the help of these solutions, you can deal with the uncommon rough-in scenario.

Having 8-inch or 9-inch rough-in in your bathroom and looking for 8-inch rough-in toilets and 9-inch rough-in toilets is a rare situation because there is no toilet with an exact 8-inch or 9-inch size.

The standard rough-in size for the toilets is 12 inches. Along with that, few models of 10-inch rough-in toilets and 14-inch rough-in toilets are also available. But what will you do if you have 8-inch rough-in or 9-inch rough-in?… Well, you know that by now.

After hours of research, we have prepared this article. We hope the solutions that we have provided here for 8-inch rough-in toilets or 9-inch rough-in toilets will help you deal with the situation.

And please feel free to share your thoughts in the comment section below.

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