Fit Guide for WASHLET+ Systems & Integrated Bidet Toilets

Written By Hannah Ramsey | Created September 24, 2021 | Updated May 20, 2024

Bidet toilets and TOTO WASHLET+ systems are a great way to instantly upgrade your bathroom and your hygiene. But what do these bidets include, and how do you find one that fits your space? You’re in the right place! In this comprehensive guide, we’ll walk you through the ins and outs of finding the perfect fit!

Know Your Options

Integrated bidet toilets are a bidet and toilet in one. They have a low-profile, tankless silhouette and offer some of the finest bidet features on the market. They’re the perfect choice if you’re after cutting-edge luxury, comfort and style.

TOTO’s WASHLET+ systems come with a bidet seat and matching toilet that seamlessly fit together, hiding the cords and hoses from view. Most WASHLET+ systems have a traditional look, with a tank that sticks up behind the bowl. Every WASHLET+ toilet pairs with several different TOTO bidet seats, letting you choose your level of luxury. They’re a good choice if you want to upgrade your toilet but don’t want to pay bidet toilet prices!

Both integrated bidet toilets and WASHLET+ systems replace your current toilet.

Floor-Mounted vs. Wall-Hung

When you hear the word “toilet”, what comes to mind? If you live in the United States, you probably think of a traditional floor-mounted unit that connects to the drainpipe in your bathroom floor. If this style suits your tastes, great! We cary lots of floor-mounted bidet toilets and WASHLET+ systems, so you’ve got plenty to choose from.

But if you’re looking for something a bit edgier, you’ve still got excellent options. Wall-mounted (also called wall-hung) toilets are growing in popularity thanks to their contemporary look and space saving design. While there aren’t a ton of residential models on the market yet, we do carry a few wall-hung bidet toilets and WASHLET+ systems.

The wall-hung integrated bidet toilets and WASHLET+ systems we sell are much more stylish than the spartan wall-hung toilets you’ve seen in public restrooms. Like their commercial counterparts, these residential models don’t touch the floor at all. Instead, they’re supported by a heavy duty metal frame installed inside the bathroom wall. The flush mechanism and tank are also concealed inside the bathroom wall.

So which is better, floor-mounted or wall-mounted? The answer really depends on your bathroom, your budget, and your accessibility needs.

  • Space
    Because the tank and flush mechanism are hidden inside the bathroom wall, wall-hung toilets take up less space than floor-mounted toilets. This makes them a great option for bathrooms that are tight on space. In fact, many wall-hung models save up to 9″ of bathroom space!
  • Installation & Cost
    Installing a floor-mounted WASHLET+ toilet yourself is certainly possible if you’ve got DIY experience. However, we recommend hiring a professional to install bidet toilets because of the delicate electronics on board. Even so, installation is generally a quick and straightforward job, so hiring a plumber shouldn’t add too much extra cost.

    In contrast, installing a wall-hung unit usually requires some serious bathroom renovation, including in-depth work on your walls and floor. Unless you’re very experienced in doing bathroom remodels, we recommend hiring professional contractors to do the work.
  • Accessibility
    Last but not least, you’ll want to consider what type of toilet will be easiest for you to use. Most floor-mounted toilets have a seated height of 15″ to 17-5/8″. Most of the wall-hung toilets we sell can be installed anywhere between 15 and 19″, giving you the flexibility to choose what’s best for you. As a general rule of thumb, the taller the seated height, the easier it is to get on and off the toilet.

    If you’re looking for an ADA compliant integrated bidet toilet or WASHLET+ system, we have lots of floor-mounted options for you to choose from! When it comes to wall-hung models, we only carry two ADA compliant integrated bidet toilets at this time: the TOTO Neorest EW and the TOTO Neorest AC. Currently, none of TOTO’s wall-hung WASHLET+ systems are ADA compliant.

What is a Rough-In?

The rough-in is a measurement that only applies to floor-mounted toilets. It refers to the distance from the wall (behind the toilet) to the center of the flange (drainpipe) in the bathroom floor. Most US bathrooms have a 12-inch rough in, and most toilets to fit this measurement.

However, some bathrooms have 10-inch or 14-inch rough-ins. While integrated bidet toilets are only compatible with 12-inch rough-ins, there are a number of WASHLET+ systems that come in 10″, 12″ and 14″ rough-in options.

We recommend double checking your bathroom’s rough-in before purchasing an integrated bidet or a WASHLET+ system to ensure that your new unit will fit the space. If you don’t have a toilet installed in your bathroom, measuring the rough-in is easy. Simply measure from the back wall of the bathroom to the center of the flange (drain opening) in the floor.

You can also measure around your existing toilet. To do this, locate the bolts holding your toilet to the floor. Most toilets only have two floor bolts, one on each side of the toilet. The distance between each bolt and the back wall should be the same. Measure from the wall behind the toilet to the middle of one of the bolt caps. If your toilet has four bolts, only measure to the center of the bolts closest to the wall.

Important Measuring Tips
Does your bathroom have baseboards or decorative tiling behind the toilet? If so, don’t include these in your rough-in measurement. Instead, make sure you start your measurement at the drywall itself.
Your measurement should come to 10″, 12″ or 14″. If your measurement is somewhere in between, round down to the nearest standard measurement or consult a professional.
Keep in mind that the shape of the toilet bowl has nothing to do with the rough-in. Whether your toilet has a round bowl or an elongated bowl, you’ll still need to measure the rough-in using the steps outlined above.
Are the bolts holding the toilet to the floor tight and centered? If so, you can measure the rough-in with confidence. If they’re not properly centered, your rough-in measurement may be incorrect.
If you have a skirted toilet and cannot see the bolts, the only way to get a reliable measurement is to remove the toilet altogether

Final Thoughts

An integrated bidet toilet or WASHLET+ system is a big purchase, and we want you to find the perfect model! If you have questions we haven’t answered here, please feel free reach out to one of our bidet experts:

  • Live Chat on our website
  • Phone: 248-974-4030
  • Email: [email protected]
  • Or via WhatsApp and Marco Polo