Does a floor coating raise the floor height?
Yes—floor coatings do raise the floor height, but only very minimally. In most cases, you’re looking at a thin added layer that’s usually less than 1/8 inch. That’s the short answer (and the one most people really want). The rest of the story is simply about when that tiny change matters—like around doors, thresholds, and drains—and why professional prep and installation help everything feel seamless.
Why Floor Coatings Add Height at All
A floor coating is a system applied over your existing concrete, so it naturally adds a thin layer on top of the slab. It’s not a “new floor” in the way people think of tile or thick overlays—it’s a protective, finished surface that sits on the concrete. That’s why the height change is typically so small… and also why it’s usually not something you notice day-to-day.
How Much Height Does a Floor Coating Add?
Here’s the number everyone’s searching for: usually less than 1/8 inch.
That’s it. Not half an inch. Not “your garage door won’t close.” Just a very minimal increase that most homeowners never think about again once the project is done.
When That Tiny Height Increase Can Actually Matter
Even when the added height is minimal, there are a few spots where small changes can feel bigger—mainly because those areas already have tight tolerances.
Doors and Door Sweeps (Man Doors)
If you’ve got a door that already barely clears the concrete, adding a thin coating can be the difference between “opens fine” and “light rub.” It’s not common, but it’s one of the first things a good installer looks at—because it’s easy to plan for.
Garage Door Bottom Seal / Weatherstrip
Garage doors typically have a bottom seal designed to meet the floor. Since the coating thickness is usually less than 1/8 inch, this is generally not an issue—but it’s still something to be aware of so the finished edge and seal contact look clean.
Thresholds & Transitions
The transition between spaces (like garage-to-interior) is where homeowners sometimes notice height changes the most. Not because it’s dramatic—but because your eye naturally catches lines at thresholds. A coating is thin, but transitions are visually “loud,” so it’s worth considering how that junction will look and feel.
Drains and Slope
If your space has a floor drain, the goal is simple: keep drainage paths working the way they should. The coating layer is minimal, but drains are one of those details you don’t want handled casually. Paying attention to slope and flow paths is part of doing the job right.
Baseboards, Cabinets, and Fixed Items (Finished Spaces)
In more finished areas—where you’ve got baseboards, cabinetry, or built-ins—the “finish details” matter. Clean edges, clean transitions, and a thoughtful plan make the coating look like it belongs there (because it does).
Coating Thickness vs. Repairs: Not the Same Thing
One thing worth clearing up: surface prep and repairs aren’t the same as “raising the whole floor.” Repairs are about creating a sound, ready surface—so the coating system can bond properly and finish smoothly. The coating itself is still a thin layer (again, usually less than 1/8 inch). The goal isn’t to build height—it’s to build a durable, finished surface.
Meet the Johnson Trio: Your Trusted Local Certified Penntek Dealer
At Accelerate Concrete Coatings, you’re working with a family-run team dedicated to bringing long-lasting, beautiful concrete coating solutions to Greenville and the surrounding areas.
Meet the Johnson Trio: Brian, Sierra, and Brett. Brothers Brett and Brian Johnson have been immersed in the concrete coatings industry for years. Brian brings over a decade of experience working directly with Penntek Industrial Coatings, one of the industry’s most respected manufacturers—and he continues to hold a position with the company today. Brett served as a general manager for a Penntek dealership for the past two years, gaining hands-on experience and a deep understanding of customer needs.
Together with Brian’s wife, Sierra, the team combines expertise, family values, and a commitment to excellence to serve the local community. The Johnson family lives right in Fountain Inn, and Brian and Sierra have two kids—Ellington and Kameron—so this isn’t a “we’ll see you once and disappear” kind of business. They live here, too.
Why Materials and Training Matter (Especially for the Details)
When homeowners ask about floor height, they’re usually asking because they care about details: doors working smoothly, transitions looking clean, and the finished space feeling intentional.
Accelerate Concrete Coatings exclusively uses Penntek’s top-of-the-line, USA-made products, trusted by professionals for over 15 years. With cutting-edge equipment and factory-trained, certified technicians, the goal is to ensure the project is done right the first time. And all coatings are backed by a limited lifetime manufacturer’s warranty, which adds peace of mind for years to come. Contact us Today!
