Who This Checklist Is For
If you’re specifying Karndean flooring for a commercial project—say, a retail rollout, a boutique hotel, or a high-end office fit-out—this is for you. You’ve seen the collections (Van Gogh, Knight Tile, Korlok), you’ve read the glossy brochures, but now you need to actually write the spec, pick the supplier, and not get burned on delivery.
This isn’t a marketing overview. It’s a practical, 4-step checklist I’ve refined over 4 years of reviewing deliveries for a national distributor. Use it to avoid the kind of costly mistakes that show up on a loading dock, not a sales sheet.
Step 1: Validate the Product Spec Against the Installation Environment
This sounds basic, but I’ve rejected 11% of first deliveries in 2024 because the wrong product grade was specified. Most people pick a collection by looks alone—they see the Knight Tile herringbone pattern and fall in love. But Karndean has multiple build types: glue-down (LooseLay, standard LVT), click-lock (Korlok), and pressure-sensitive adhesive. Pick the wrong one for the subfloor, and you’re looking at delamination or joint peaking within 12 months.
Checkpoints:
- Subfloor type: Is it concrete, plywood, or existing tile? Korlok click-lock requires a flat tolerance of 3/16" over 10’—if your slab is wavy, go glue-down.
- Moisture: For concrete slabs, do a calcium chloride test. Karndean specifies a maximum MVER (moisture vapor emission rate) for most glue-down products. Exceed it, and you void the warranty.
- Traffic load: The Van Gogh line is a 20mil wear layer—fine for residential or light commercial. For heavy commercial (retail, hospitality), you need the 28mil or 32mil options in the Art Select range. I once saw a hotel specify the 20mil product for a lobby. It started showing scuff marks within 3 months.
Step 2: Verify the Color and Batch Consistency
Here’s something vendors won’t tell you: even within the same product line, dye lots vary. You think you’re ordering “Knight Tile – Burnished Clay,” but the batch your distributor pulls from inventory may have a slightly different hue than the sample you signed off on. Industry standard color tolerance for LVT is Delta E < 2. Most people don’t check it.
My protocol:
- Request a ‘production sealed sample’—not a showroom sample—for each batch you order.
- I use a colorimeter to measure Delta E against the approved spec. If it’s above 1.5, I flag it. At Delta E of 3, the installer will notice the mismatch on the floor.
- For large orders: Ask your supplier to confirm the batch numbers for each pallet. I once rejected an 8,000 sq ft order where two pallets had different batch codes—visibly, the color was off by a full shade. Redoing that floor cost the installer $22,000.
Step 3: Check the Distributor’s Inventory Practices
This is the part I wish more buyers paid attention to. Karndean flooring is a premium product, but it’s still vinyl. It can warp or plank if stored improperly—exposed to direct sunlight, in a non-temp-controlled warehouse, or stacked too high. A reputable distributor will store it flat, out of UV, and at a stable temperature.
What to ask:
- “Can I see the warehouse where my order is stored?” If they hesitate, that’s a red flag.
- “How old is the stock you’re pulling from?” I’ve seen distributors offload “new old stock” that had been sitting for 18 months. The adhesive can dry out.
- “Do you inspect for flatness before shipping?” Some do. Most don’t. I’ve seen 5% of planks in a pallet have a slight ‘cupping’—not enough to fail visually, but enough to cause click-lock joints to be misaligned during install.
Honestly, I’ve switched distributors three times in five years because of inventory quality issues. The premium you pay for a good distributor is way less than the rework costs.
Step 4: Confirm the Installation Accessories (Don’t Assume)
Most buyers focus on the flooring itself and forget the rest: the adhesive, the floor care starter kit, the packer shims for expansion gaps. I see this all the time. Someone orders 3,000 sq ft of Looselay, assumes it just clicks together, and then finds out they need a specific Karndean pressure-sensitive adhesive for the perimeter. Or they buy a generic floor cleaner and void the warranty.
Checklist for accessories:
- Adhesive: Does the spec call for the correct Karndean adhesive (e.g., K514 for glue-down, K82 for pressure-sensitive)? Using a generic brand can cause chemical reactions with the vinyl. Per industry standards (ASTM F710), the adhesive must be compatible with the floor backing.
- Cleaner: The official Karndean Floor Care Kit is what’s recommended for post-install cleaning. Some distributors will upsell you a generic ‘pH-neutral cleaner’—but it may not have the same formulation. I’ve had a tenant’s cleaning crew use a cheap cleaner that left a residue film on the LVT. The manufacturer wouldn’t honor the warranty because the cleaner wasn’t approved.
- Transition strips: Karndean sells matching T-moldings and reducers. Order them at the same time. Running out mid-install and using a random brand from the hardware store ruins the aesthetic.
Common Mistakes to Avoid
Here are the three most common issues I see that cost people money:
1. Assuming ‘Luxury Vinyl’ means ‘indestructible’. Look, I know the marketing says it’s durable. But no vinyl floor is completely scratch-proof. I’ve seen a steel chair leg gouge a 20mil wear layer. The brand’s warranty covers manufacturing defects—not abuse. Always specify floor protection during construction.
2. Not ordering a 10% waste allowance. Karndean recommends 5-15% depending on the pattern (herringbone needs closer to 15%). If you order exactly the square footage, you’ll be short. The installer will have to wait for a reorder, and the new batch may not match.
3. Buying the cheapest cleaner you can find. To be fair, budgets are real. I get it. But that $12 store-brand cleaner? It could cost you the warranty on a $30,000 floor. The official Karndean floor care kit is about $40 for a concentrate that lasts for months. The math doesn’t justify the risk.
So, bottom line: follow these steps, and you’ll catch 80% of the issues that cause rework. It’s not glamorous, but it pays for itself. Trust me—I’ve seen the failed inspections.
