If you’ve ever walked into a showroom or scrolled through an online LVT (Luxury Vinyl Tile) flooring listing, you’ve probably noticed that thickness numbers pop up constantly—2mm, 3mm, 5mm, even 8mm. As someone who’s been supplying LVT flooring to residential builders, small business owners, and homeowners for over a decade, I get asked this question every single week: Does LVT thickness really matter? The short answer is yes—but not in the way most people think. Let’s break this down like I would with a customer standing in my warehouse, running their fingers over a sample board, no jargon, no fancy sales lines. LVT Flooring
First, let’s get one thing straight: LVT thickness isn’t just a single number. It’s split into two parts—the total thickness of the plank (or tile) itself, and the thickness of the wear layer. That’s the part that trips most people up, and it’s where so much misinformation gets spread online. I’ve had a customer call me in a panic, convinced that a 5mm plank is automatically better than a 3mm one, only to realize the 3mm has a 20 mil wear layer and the 5mm only has a 12 mil wear layer. Mil is the standard measurement for wear layers, and that’s the metric that actually determines how long your LVT will last. But before we dive into that, let’s talk about who needs what thickness, because that’s where context matters most.
For residential use, most of our customers fall into one of two camps: homeowners renovating their own space, and small contractors working on 2-3 bedroom homes. For years, I’d recommend 2mm to 3mm LVT for these jobs, but that’s changed a little in the last five years as manufacturing has gotten better. Wait, no—let’s clarify: 2mm is thin, light, and really easy to install for DIYers. It’s great for apartments, guest bedrooms, or even basements where foot traffic is light. If you’re renting and plan to move in 3-5 years, you don’t need to spend extra on a thick plank that will outlast your tenancy. But here’s the catch: 2mm LVT has almost no cushioning, and if you have an uneven subfloor (which most older homes do), you’ll feel every bump under your feet. I’ve had customers say it feels like walking on thin cardboard, and they’re not wrong. It’s functional, but it’s not comfortable. That’s where 3mm comes in. It’s still DIY-friendly, a little more stable, has just enough cushioning to take the edge off uneven subfloors, and it works well for hallways, bedrooms, and even home offices. The best part? Most 3mm LVT we supply has a 10 mil or 12 mil wear layer—plenty for residential use, even with dogs running around or kids dragging toys.
Now, what about thicker LVT—4mm, 5mm, even up to 7mm or 8mm? That’s the stuff for commercial spaces. I’ve worked with café owners, retail store managers, and office building contractors for years, and they’ll almost always request thicker LVT. Why? Commercial spaces have way higher foot traffic—think 500 people a day walking through a boutique, or waiters and waitresses hauling trays across a restaurant floor for 12 hours a day. Thick LVT doesn’t just mean more wear layer, though. It means more structural integrity. A 5mm plank won’t bend or warp as easily when heavy furniture is dragged across it, and it has better impact resistance. I’ve had a restaurant owner install a 5mm LVT floor three years ago, and they haven’t had a single scratch that’s gone all the way through the wear layer. A neighboring café installed a 3mm LVT floor at the same time, and they already had to replace a few planks in the high-traffic front door area because the wear layer wore thin. That’s not to say 3mm is bad for commercial—if it’s a small office with only 10 people a day, it’s fine. But for high-traffic spaces, thickness is a must.
Wait, but let’s circle back to that wear layer, because this is where a lot of suppliers cut corners to offer lower prices. A 5mm plank with a 12 mil wear layer is not as good as a 3mm plank with a 20 mil wear layer. I see this all the time when I quote customers who have found cheaper LVT online. They’ll say, “This 6mm plank is $1 a square foot cheaper than yours,” and I have to explain that their 6mm plank has a 10 mil wear layer, while our 3mm has a 20 mil one. Over time, the cheaper one will wear out faster, even if it’s thicker. That’s why we always educate our customers to look at both numbers, not just total thickness. Total thickness matters for underlayment, structural stability, and impact resistance, but wear layer thickness is what determines longevity.
Another factor that’s tied to thickness is installation. Thicker LVT requires a different approach, especially if you’re using a floating floor system (which is the most common for modern LVT). If you’re installing over radiant heat, for example, thicker planks have more thermal mass, so they take longer to heat up and cool down, but they also hold heat better. We always recommend talking to an installer about your radiant heat system, because a 5mm plank might not be the best choice if your heat is set to a very high temperature—though most modern LVT is rated for radiant heat now. For DIY installations, thinner planks are definitely easier. They’re lighter, easier to cut, and the click-lock system works more smoothly. I’ve had a customer who installed 2mm LVT in his basement by himself in a weekend, and it looked perfect. Another tried to install 5mm planks on his own and ended up returning half because he couldn’t line up the click locks correctly. That’s not to say a pro can’t handle it, but DIYers should stick to thinner options.
Durability isn’t just about foot traffic, either. What about spills and moisture? LVT is waterproof, right? Well, not 100%, but it’s water-resistant, especially the better quality options. Thicker planks tend to have a more reliable seal around the edges, so spills are less likely to seep in if a board gets scratched or damaged. I’ve had a customer spill a whole bucket of coffee on his 3mm LVT, and he wiped it up immediately with no problem. Another had a 2mm LVT floor in a rental apartment, and a leaky window let water sit on the floor for a day—by the time he mopped it up, the edges of the planks had swollen a little. That’s not a failure of LVT, exactly, but thickness does play a role in how much damage water can cause. Thicker planks are more resistant to minor water exposure, which is good for bathrooms, laundry rooms, or basements.
Let’s also talk about noise, because that’s a big one for both residential and commercial spaces. Thicker LVT has more cushioning, so it absorbs sound better. If you live in an apartment above someone, a thin 2mm LVT floor will transmit a lot of foot noise to the unit below. A 3mm or 4mm plank with a built-in underlayment layer will muffle that noise significantly. For offices, that’s important too—you don’t want people walking around and disturbing meetings or quiet work. We recommend our customers who care about noise opt for at least 3mm LVT, and we always offer samples so they can test the sound difference for themselves.
Wait, but what about cost? Thicker LVT is more expensive than thinner LVT, right? Yes, but only up to a point. The difference between a 2mm and 3mm plank is usually $0.20 to $0.50 per square foot, while the difference between a 5mm and 7mm plank is $0.50 to $1 per square foot. That’s why we always recommend choosing the smallest thickness that meets your needs, rather than overspending on extra thickness you don’t need. If you’re a homeowner with kids and a medium-traffic hallway, 3mm with a 12 mil wear layer is perfect. If you’re a retail store owner, 5mm with a 20 mil wear layer is worth the extra cost for long-term durability. We’ve had customers who bought the thickest LVT on the market for a small bedroom, and they ended up paying twice as much as they needed to. That’s the biggest mistake I see people make—chasing thickness without considering their actual usage.
Another common question: Can you use underlayment with LVT? And how does that interact with thickness? We always recommend adding a underlayment layer, regardless of LVT thickness, because it evens out minor subfloor imperfections, adds cushioning, and reduces noise. But when you add underlayment, you have to adjust for total thickness. If you’re using a 2mm plank, adding a 2mm underlayment gives you a total of 4mm, which is still manageable. If you’re using a 5mm plank, adding a 2mm underlayment makes 7mm, which might be too thick for doorways. That’s a practical consideration most people don’t think about before they start installation. A lot of older homes have doors that are trimmed very close to the floor, so if you add a thick LVT plus underlayment, the door might not swing closed. We always advise customers to test the height by setting a plank on the subfloor, adding underlayment, and placing a door under it to make sure there’s enough clearance. That’s a simple step, but it’s one that saves a lot of headaches later.
Let me also share a real example that stuck with me. A couple came to me last year, renovating their first home. They had two young kids, a large living room, and a small home office. They were trying to decide between 3mm and 5mm LVT. The guy said, “We want the thickest one so it will last forever.” The wife said, “We don’t want to pay extra if we don’t need it.” I brought them samples, had them walk on both, and explained that their living room had medium traffic, so 3mm with a 15 mil wear layer was more than enough. The 5mm would cost them $300 more for the whole space, and they’d never notice the difference in comfort. They went with 3mm, and six months later, the wife sent me a message saying it was perfect—easy to keep clean, the kids had spilled juice and paint with no damage, and it felt warm under their bare feet. That’s exactly the kind of call we love to get.
Now, let’s address the elephant in the room: Is there a downside to thicker LVT? For most residential spaces, no—unless you’re dealing with door clearance, as I mentioned earlier. For commercial spaces, thicker LVT can be harder to install if you’re working on a time crunch, because the planks are heavier and take more time to align. But the biggest downside is cost, and that’s only if you overbuy thickness you don’t need. I’ve also heard some people say thicker LVT is harder to repair, but that’s not true—if a plank gets damaged, you can just pry it up and replace it, regardless of thickness. The only thing is that thicker planks are a little more rigid, so you have to make sure you get the exact right replacement to match the pattern, which is the same for thin planks.
At the end of the day, LVT thickness matters, but it’s not the be-all and end-all. The most important factors are still wear layer thickness, your space’s traffic level, your installation skill, and your budget. Thickness adds structural stability, cushioning, and moisture resistance, but only if you pair it with a good wear layer. For someone renting or on a tight budget, 2mm is fine. For homeowners, 3mm to 4mm is the sweet spot for most spaces. For high-traffic commercial areas, 5mm and above make sense. The worst thing you can do is buy the thickest LVT available without considering what you actually need—you’ll pay more than you should, and you won’t get any extra benefit.
As a supplier, our job isn’t to push the most expensive product on every customer. It’s to help them find the right LVT for their space, whether that’s 2mm for a rental or 6mm for a busy restaurant. We have samples of every thickness, we explain the difference between total thickness and wear layer, and we walk through installation tips, noise considerations, and even door clearance issues. LVT is one of the most durable, versatile flooring options on the market, but its performance depends on choosing the right thickness for your specific needs.
If you’re planning a flooring project—whether it’s a small residential update or a large commercial build—don’t just look at the thickness number on the box. Reach out, and let’s talk through your space, your traffic, and your budget. We can help you find the perfect LVT that will last for years, without paying for thickness you don’t need.
SPC Molding References:
- National Wood Flooring Association. (2022). Luxury Vinyl Flooring Installation and Specification Guide. NWFA Press.
- Resilient Floor Covering Institute. (2021). Performance Standards for Luxury Vinyl Tile and Plank Flooring. RFCI Technical Bulletin.
- U.S. Department of Housing and Urban Development. (2020). Residential Flooring Best Practices for Durability and Comfort. HUD Office of Policy Development and Research.
- International Code Council. (2022). Residential Structural Requirements for Flooring Materials. ICC Codes and Standards.
- Vinyl Institute. (2023). Sustainability and Performance of Luxury Vinyl Flooring. Vinyl Industry Research & Education Foundation.
Jiangsu Zhengyoung Flooring Decoration Material Co., Ltd.
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