Surface Treatment

Kährs offers several types of surface treatment: high gloss lacquer, silk matt lacquer, matt lacquer and oil. No matter which one you choose, your floor will be ready to walk on as soon as it is installed. All Kährs surface treatments are solvent-free. In 1984, we were the first flooring manufacturer to implement an entirely solvent-free production process.

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High gloss lacquer

The high gloss lacquer gives your floor a shiny, polished look that enhances the beauty of the wood species you’ve chosen. It also protects your floor from everyday wear and tear.

Satin lacquer

Lacquered floors are easy to maintain. Our satin lacquer complements the wood’s character by accentuating its natural structure. It also makes the floor more hardwearing and easier to clean. Despite its strength, Kährs’ lacquer coating is exceptionally thin and, unlike many other lacquers, does not conceal the structure of the wood. In addition, with Kährs satin lacquer there’s no artificial shine.

Matt lacquer

Kährs matt lacquer is as hardwearing and easy to maintain as our satin lacquer. The subtle finish produces an untreated, bare wood look.

Oil

Oil brings out the fine structure and grain of the wood and enhances its natural colour. Floors treated with oil are easy to clean and maintain, but they need a little more care and should be oiled regularly.

Plank Pattern

The appearance of any wood floor depends on a number of factors, such as the wood species, grain, knots etc. Each tree offers a variety of colours and structures, allowing us to produce wood floors with many different appearances, according to how the wood is cut.

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1-strip

The surface layer of every 1-strip board is sawn from a single piece of wood. The natural appearance of the wood, including knots, colour variations and grain, is reflected in this. However, for some of our 1-strip floor collections, we have selected wood that offers little variation in colour and a minimum of knots. Kährs 1-strip flooring is available in several different lengths and widths.

2-strip

The surface layer is two strips' wide. The strips are selected and arranged to give each 2-strip floor its own unique character. Kährs’ 2-strip flooring is available in two options: long strips, and short strips.

3-strip

The surface layer of 3-strip flooring is created by placing three strips of wood of different lengths widthwise and at random. At Kährs, we produce 3-strip flooring configurations in a way that enhanceits lively expression, but we also create compositions that evoke a calmer feel.

Ships decking

Our ships decking floors are characterised by combining matching or contrasting strips. They also feature wood plugs at either end of each board. Our ships decking floor is delivered in whole boards.

Dutch pattern

Kährs Dutch pattern flooring is a classic floor that benefits from a modern construction. Kährs offers a wide variety of designs, from classical to modern.

Refining Treatment

At Kährs, we continue to develop new ways to bring beauty and new design to our wood flooring, increasing possibilities for personal choices. We can further enhance the look and feel of our floors through a variety of techniques.

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Brushing

Brushing the surface highlights the natural structure of the grain and emphasizes the texture of the wood. Brushing effects vary, depending on the wood species. Brushes are made from different materials in varying degrees of hardness, and brushing is often carried out along with other refining treatments such as staining and bevelling of edges.

Staining

Staining further enhances the wood’s natural colour tones. It also allows us to apply new colours, thus completely transforming the appearance of the wood. Kährs offers a wide range of stained options – from the palest white, to rich charcoal shades.

Bevelled edges

A bevelled edge feature on a 1-strip floor gives a very distinct look. Kährs offers a number of floors with a bevelled edge finish in varying degrees, from “microbevelling” – tiny clarification and reinforcement of the edges created using sandpaper – to more prominent bevelling on both the long and the short sides, for a rustic, robust appearance.

Handscraping

By using different tools for manual wood scraping and sanding, we can give a new wood floor a worn appearance. A great amount of handwork goes into each floor to achieve its rustic character.

Smoked

This special process alters the colour and shade of each plank. There are two grades of smoked finish: light and the darker fully smoked.

Saw marks

This involves the same process as hand scraping. However, the surface marks are created to resemble those made by a chainsaw.

Wood’s natural changes

Wood exposed to normal sunlight is subject to colour changes. As with all natural products made from wood, these changes are expected and add to the beauty and distinctiveness of wood fl oors. If you move or rearrange carpets and furniture periodically, you avoid distinct lines between the exposed and unexposed areas of the fl oor. The swatches show the shades that different wood species will turn after 2–3 years’ exposure to normal sunlight.

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Ash

The sapwood is almost white and the heartwood ranges from grey through light brown to light yellow with brown streaks. Ash undergoes a medium degree of change over time from a lighter freshly sanded tone to a straw/tan colour.

Beech

Beech ranges in colour from light cream to medium tan/brown with pink-orange overtones. It undergoes a medium degree of colour change with a slight muting of the orange colours and ambering over time. Beech is not suitable for installation over underfloor heating.

Birch

Birch is usually straight-grained, with a fine, often wavy, structure. Birch undergoes a medium degree of change from freshly sanded cream to reddish yellow as it ages.

Cherry

The sapwood is creamy white while the heartwood can vary from deep red to reddish brown, which together forms a fine figured, straight grain. Cherry undergoes an extreme degree of colour change with pronounced darkening to a dark reddish colour when fully aged. This process occurs within a few weeks in direct sunlight.

European maple

Compared with Hard Maple, European Maple has a lustre all of its own that gives the room a clean airy feel. It takes coloured stains easily, and is popular because of its wide area of application in interior design and furniture. Light in colour, European Maple turns golden over time.

Hard maple

The sapwood is cream-coloured, with a tendency to reddish brown, and the heartwood varies from light to dark brown with red highlights. It undergoes a medium degree of colour change, from a creamy white to golden over time.

Jarrah

Jarrah has a smooth surface and straight graining. The sapwood and heartwood vary from salmon-pink to deep red. Finished floors often have a dark brown to reddish purple colour, which also deepens over the years.

Jatoba, brazilian cherry

The sapwood can have broad figuring, light pink and sometimes greyish tones. The heartwood ranges from salmon pink to reddish brown with dark streaks. Pronounced deepening of colors, may have or develop white mineral deposit spots as the floor ages. Over time it deepens in colour to a rich vibrant red.

Oak

The light brown to darker tones of White Oak undergoes a medium degree of colour change with slight ambering over time.

Red oak

The sapwood is white to light brown, and the heartwood is pink to reddish brown. The wood usually has straight grain. It is hard and durable, and it takes a wide range of coloured stains quite easily. Red Oak undergoes a medium degree of colour change over time, with a slight ambering of the pink/tan brown colour you get when freshly milled.

Walnut

The sapwood is creamy white but the heartwood is a light brown to dark chocolate brown, sometimes with a tendency to purple. The wood gains a special lustre over the years and undergoes a medium to high degree of colour change with the dark brown heartwood lightening over time to a more golden brown.

Grading

Kährs offers a selection of three different gradings, each with a unique character. Grading depends on which part of the log is used when producing individual boards.

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City – Clean

Made from regular timber grade, planks are uniform, with small variations in grain and tone.

Town – Colour variation

These floors are characterized by subtle variations in colour, tone and pattern and are without knots.

Country – Knots

Featuring dramatic graining, gnarls and knots, these floors boast greater colour variations and have a more lively, rustic character.

Hardness of wood species

A combination of the wood’s structure and hardness determines how durable the floor is. The hardness of the wood varies according to species and is measured using the Brinell method.

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Joint Systems

In 2010, Kährs launched Woodloc® 5S – the evolution of the market-leading Woodloc® system, with which Kährs revolutionised the flooring industry in 2000. Kährs offers three different joint systems depending on board construction.

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Woodloc® 5S

Woodloc® 5S makes installing a Kährs floor even faster and simpler. Woodloc® 5S is the latest innovative glue-free joint system, with a special locking tongue to create even stronger joints.

• The strongest joint on the market
• Faster and easier to install than Woodloc®
• Resistant to changes in temperature and humidity
• No gaps
• Covers 75 % larger installation areas without an expansion joint
• Floor can be used directly after installation
• Easy to remove the floor (when installed floating)
• Suitable for use with Kährs 13 mm, 15 mm and 30 mm floors

Woodloc®

A mechanical joint with no need for glue.

• The world’s first mechanical joint – launched in 2000
• Faster and easier to install than traditional joints with glue
• Resistant to changes in temperature and humidity
• No gaps
• Floor can be used directly after installation
• Easy to remove the floor (when installed floating)
• Suitable for use with Kährs 7 mm, 10 mm, 15 mm and 30 mm floors

Tongue & Groove

This is a traditional tongue and groove construction. 

• Needs glue. Allow to dry before use following installation
• Suitable for Kährs 20 mm floors

For more detailed information regarding installation methods and sub-floor requirements, download the installation PDF for each product. Kährs Installation Instructions

Floor installaton checklist:

• A floor can only be as good as the subfloor permits.

• To avoid moisture absorption, open the packages only when needed during installation.

• When installing, the temperature of the materials, subfloor and on site must be at least 18 °C.

• The relative humidity on site must be below 60%.

• The subfloor must be dry, clean, solid and sufficiently flat.

• Soft, elastic subfloors must be adjusted.

• Make sure that the correct vapour barrier is fitted.

• The foam plastic underlay (EPS) must have sufficient compressive strength.

• The foam plastic film must comply with applicable thickness tolerances.

• Put aside any damaged or faulty floorboards.