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.


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.