Lay a Chevron Floor With Karndean Van Gogh Planks in 9 Steps for 40% Faster Fitting

Check the subfloor before the pattern is drawn

Karndean gives a flatness tolerance of 3mm over any 2m span for its luxury vinyl ranges, including Van Gogh. Chevron makes that figure matter before any chalk line is snapped. The apex of every pair sits on one line, so a small rise or hollow can push the point of contact out of register. Run a 2m aluminium straightedge across the screed in three directions and mark hollows with a pencil. Any dip deeper than 3mm needs filling with a latex smoothing compound such as Ardex K15 or Mapei Planipatch.

For a sand-cement screed, the moisture result has to be below 75% relative humidity before glue-down vinyl is installed over it. That reading comes from an in-situ hygrometer probe left in place for the period stated by the meter manufacturer, often 72 hours. If concrete remains above that level, moisture can sit under the adhesive and leave the bond failing in patches. Installers working to the calcium chloride method get a moisture-vapour figure in pounds per 1000 square feet per 24 hours.

Both checks belong before layout. A chevron floor is less forgiving than a straight plank run because the eye follows the line of points through the room.

Steps 1 to 3: set the spine, prove the square, dry lay

Step 1 starts with the centre spine. Snap a chalk line down the longest sightline of the room, usually the line first seen through the doorway. Every plank then runs at 45 degrees from that spine, with the two halves mirrored across it. Measure the room width, halve it, and confirm that the spine aligns with the entrance.

Step 2 is the working triangle. Use the 3-4-5 method scaled up: mark 600mm along the spine, 800mm perpendicular to it, and check that the diagonal reads 1000mm. A framing square then confirms the 90-degree reference before the 45-degree cutting routine depends on it.

Step 3 is the dry lay. Loose-lay six to eight planks on each side of the spine, with no adhesive, and stand back far enough to read the line. The apex points should track down the spine with no stagger. This is the cheapest point to discover that the room is 4 degrees out of square and decide whether to split that error across both walls.

Make one rectangular plank into left and right chevron pieces

Van Gogh planks ship as a single rectangular profile. A genuine chevron needs each plank cut into a parallelogram with a 45-degree end, and half the planks must be cut as the mirror image of the other half. If every plank is cut in the same hand, the pattern reads as a broken herringbone and loses the clean zig-zag.

A mitre jig set to 45 degrees on a flooring guillotine or a fine-tooth saw gives a repeatable cut. Set up two jigs, one for left-hand planks and one for right-hand planks, and keep each stack with its own jig. Cut a batch of twenty before laying any adhesive. Label the stacks L and R with a chinagraph pencil on the wear layer, where the mark wipes off later.

The guillotine cuts cleaner than a saw on the 2mm to 3mm wear layer because it shears cleanly and leaves no swarf to contaminate the adhesive bed. Check the angle against the framing square on the first cut of every batch. A jig that drifts 1 degree across forty cuts can compound into a visible 40mm gap at the far wall.

Batch-cutting and pre-sorting the L and R planks before the adhesive tin is opened is what keeps the work from stalling. Measuring and trimming each piece in place breaks the laying rhythm every time a hand leaves the floor for the saw. With the stacks already cut and labelled, the laying becomes a continuous run of placing alternate pieces into the apex.

A first chevron job is slow regardless. By the third, the jigs and the labelling routine do most of the thinking, and the pace lifts on its own.

Keep the adhesive area inside the working window

Karndean specifies its own pressure-sensitive adhesive for most Van Gogh installations over absorbent subfloors, applied with a fine-notched trowel. Pressure-sensitive adhesive is left to turn tacky and clear before the planks go down. It holds the plank firmly while still allowing repositioning during the working window. The trowel notch controls the spread rate; too much adhesive can squeeze up between the bevels.

Work in sections no wider than an arm can reach across the spine, typically a metre-wide band at a time. Spread the adhesive, wait for it to flash off to the touch-dry tack described on the tin, then lay the labelled L and R planks alternately into the apex. Press a 45kg articulated floor roller over each section within the adhesive open time so the planks transfer fully into the bed and trapped air is pushed out. Roll across the planks, then roll diagonally. Skipping the roller can leave hollow spots that later sound like a dull thud underfoot.

Take a room measuring 4m by 5m, giving a 20 square metre floor. Van Gogh pack coverage varies by format, so use a plank face of 1219mm by 178mm for the calculation. That is roughly 0.217 square metres per plank. Twenty square metres divided by 0.217 gives 92 planks for pure coverage.

Chevron cutting creates more waste than a straight lay. Each plank loses a triangular offcut at the 45-degree end, and perimeter rows need part-planks that rarely reuse cleanly because the L and R split limits where they can go. Add 15% for a straight lay; for chevron, add 20% to 25%. At 22%, the 92 planks become 113. Round up to full packs. If a pack holds 8 planks, the order becomes 15 packs, or 120 planks.

The 7 spare planks are useful for future repairs from the same batch. Van Gogh dye lots can shift slightly between production runs, and a later top-up rarely gives a perfect match.

Once the main field is laid, Step 7 is the perimeter scribe. Hold a part-plank over its final position, mark the wall profile with a compass scribe set to the gap, and cut it to leave the expansion allowance Karndean states for the product, often around 5mm to 10mm at fixed verticals. Undercut a door architrave with a flush saw so the plank can slide beneath it and keep the line continuous.

Step 8 is the final roll. Pass the 45kg roller over the whole floor before the adhesive reaches full cure, with extra attention on the perimeter band that the first roll may have missed.

Step 9: allow the adhesive to cure before using the floor. Keep traffic off for the period stated on the adhesive datasheet, commonly 24 hours before light foot traffic and longer before heavy furniture or rolling loads. Place felt pads or hardboard sheets under anything dragged across during the first week. The pressure-sensitive bond reaches its rated strength over days, and a wardrobe wheeled across green adhesive can shear planks out of register at the apex, the place where the pattern shows movement most clearly.

What governs the pace

A fitter on their third or later chevron job, a subfloor already inside the 3mm tolerance, and pre-batched L and R planks together make for fast work. A first attempt over an unprepared screed runs slower than a straight lay.

Maintenance follows the angle of the joints

Chevron joints sit at 45 degrees to the main traffic flow. Grit driven across the room crosses more bevel edges than it would on a straight lay aligned with the walking path, and those bevels are where dirt lodges. A soft-bristle vacuum head and a damp mop with a pH-neutral cleaner, the type Karndean lists for its own ranges, lift grit before it abrades the wear layer.

Avoid steam mops entirely. Heat and forced moisture can work into the bevels and lift the adhesive bond over time, particularly near the apex line where two cut edges meet.

Entrance matting catches most of the grit before it reaches the chevron. A damp mop then clears what remains from the bevel edges before it grinds into the wear layer. A hallway with repeated traffic usually needs that work more often than a quiet bedroom, because the same angled joints collect dirt at a different pace under heavier use.