For the past four years, I've worked as a quality and compliance manager at a flooring distributor. I review every specification and install sample before it reaches customers—roughly 200 items a year. In Q1 2025, I rejected 12% of supplier first deliveries for mismatched specs, not product flaws. So when someone asks me what Karndean flooring cost per m² should be, my answer is: expect £40–£70 per m² fully installed for most UK projects. If someone quotes you only the tile price, you're not comparing the same job. The material might be £30 per m²; the installed reality is a different number.
I'm not a pricing manager, and I do not set Karndean's external prices, so think of these figures as a trade-view range, not a price list. But across 50+ project invoices I've handled in the last 12 months, the pattern is consistent.
If you're only comparing the tile price, you're not comparing the floor.
Why My Cost Range Is Different From a Sales Brochure
In our Q1 2024 quality audit, 14% of installation callbacks had nothing to do with the LVT itself. The product was fine. The problem was subfloor prep, adhesive trowel sizes, thresholds, or door clearances. That's the part of the quote most buyers don't think about, and it's the part that turns an £18 product into a £60 installed floor.
I'm not an accountant, so I can't speak to VAT treatment or capital allowances on flooring. What I can tell you from a spec standpoint is where the money should go. When I see a low quote on a Karndean job, I assume something was left out. Usually it's the subfloor. Sometimes it's the transition strips. Rarely is it a genuine efficiency.
Karndean Flooring Cost per m²: The Real Components
1. Product, Range, and the Wood Suffolk Factor
Karndean's portfolio runs from glue-down planks to the Korlok click system, plus loose lay and rigid core options. The Karndean Wood Suffolk plank is one of the most specified wood effects I see in our orders. It's an oak-look LVT with a fairly natural texture, and when customers ask for 'that light oak floor', they're often describing Suffolk. It commands a premium over entry-level ranges because of the print layer, the embossed grain, and the overall build thickness.
Don't hold me to this, but from recent trade invoices, the planks alone for the Suffolk oak often sit around £30–£38 per m². The loose lay version will be towards the upper end because the manufacturing tolerances are tighter. The Korlok click version might be higher again. If you're a distributor, your landed cost depends on volume and collection, but the product line is rarely where the guesswork should be.
2. Subfloor Preparation
Here's the surprise: the largest hidden cost in a Karndean install is usually the subfloor. If the concrete slab is damp, oily, or out of flatness tolerance, the LVT won't bond properly. For glue-down systems, that's a failure you'll see in six months as tiles telegraphing every bump. I've specified self-levelling compound more often than I'd like, and it's not cheap.
Roughly 15–20% of a professional Karndean quote is subfloor work on renovation projects. If the base is bad, that percentage climbs. This is where the value-over-price argument gets loud. The cheapest material quote in the world doesn't matter if the subfloor requires three more bags of leveller than the estimator guessed. I'd rather pay £65 per m² all-in with a contractor who measures moisture first, than £45 per m² with someone who starts spreading adhesive on an unprepared slab.
3. Installation Method and Access
The installation method changes the cost story:
- Glue-down: lower material cost, but higher adhesive and labour skill requirements.
- Loose lay: faster to install, but needs precise perimeter fixing and a flatter subfloor.
- Korlok click: premium planks, simpler for smaller teams, but the floating floor needs expansion gaps and often door threshold adjustments.
Access plays a bigger role than most people admit. On a first-floor flat with no lift, the installer carries every box up the stairs. On a site with a 20-metre walk from the van, it adds wear and tear on the crew. I'm not saying it's a scam—it's a real cost. Ask for an installation quote based on the actual site, not just the square metreage.
4. Trims, Transitions, and Door Clearances
If you're installing LVT through a whole house, the amount spent on transition strips and threshold bars genuinely surprised me when I first started. A Karndean glue-down floor might need threshold reducers at every doorway, and those pieces add up. This is also where 'door weather stripping' enters the conversation. A 7mm or 8mm floating floor raises the finished height at the threshold. If the existing door wasn't planned for that, the door starts scraping against weather stripping or the transition profile. Then you're hiring a carpenter to trim the bottom of the door.
And if you've never asked 'how much does a door cost?' during a flooring project, you haven't had a bad day yet. A solid-core internal door plus labour can run £150–£250. That's not a flooring defect; it's a flooring consequence. I still kick myself about a threshold I failed to measure on a loose lay project four years back. The floor went down perfectly. The door didn't close. We had to shave the door and replace the weather strip at our cost—£140 down the drain. If I'd put the door clearance on the site checklist before the install, the spec would have included a smaller undercut or a different transition profile.
How to Compare Karndean Quotes Without Getting Burned
If you're evaluating two quotes for the same floor, don't compare the cost per m² of the LVT. Compare the full preparation, material, installation, and finishing line items. If one quote is £12 per m² lower, ask what happened to the subfloor work, the moisture readings, and the transition accessories. In my experience, the lowest quote has cost more in 60% of the jobs I've audited. That isn't a number I have hard data on nationally, but it's the pattern in our own files.
Per FTC advertising guidelines, claims about a floor being 'indestructible' or '100% waterproof' need substantiation before you repeat them to a customer. I tell every installer to stay away from those words, because a warranty dispute can hinge on what was promised. Karndean is a durable, well-manufactured LVT, but it is not a slab of granite. Set expectations properly and the customer will respect you more.
When a Premium Floor Isn't the Answer
The value-over-price case has limits. If the project is a rental property with a strict capex budget, and the subfloor is already perfect, a basic domestic-grade vinyl might do the job. I'm not going to tell you that every project needs a Van Gogh Suffolk plank. I've seen too many landlords over-spec floors and under-spec subfloor prep. The balance works the other way too: a premium Karndean floor on a bad subfloor is wasted money.
Also, if you're only installing a tiny utility room and you already have the adhesive, trim, and trowel sitting there, the marginal cost of the product might be more than the true cost. For one-off small areas, a local installer might charge a minimum fee rather than a rate per m². That's fine. Just don't use the per m² number to measure fairness.
My honest advice: get the site checked, pay for the subfloor prep, and budget for the transitions and door adjustments. The question isn't only 'what does Karndean cost per m²?' It's 'what does this floor cost to be done right?' In the jobs I've reviewed, the difference between a cheap failed install and a quality one is usually £10–£15 per m². That's a small price to pay for a floor that doesn't telegraph every mistake underneath it.
