Kährs floors offer a variety of installation methods. Which method to choose depends on the joint construction. The Woodloc® joint locks the boards together mechanically, with virtually invisible joints, in a so-called floating installation. The superior fit achieved through this method also enhances the floor's performance and durability. With the Tongue & Groove method, the floorboards are glued together, and sometimes also nailed down.

Floating installation

This method is the most cost-effective way of installing the floor. Sub-floor requirements are less demanding. However, the sub-floor must be dry, clean, flat and solid. We recommend that a 0,2 mm PE-film with 200 mm overlap is placed on the sub-floor as moisture protection. An intermediate layer can also be installed on any film to reduce footstep noise. The intermediate layer, e.g. Kährs foam or lump paper, should be installed edge to edge. When installing a Kährs wood floor on an organic subfloor you must make sure that the floor covering including subfloor construction never contains more than one layer of moisture barrier. An alternative is to use Kährs Tuplex, which combines both moisture protection and sound installation. In this case no other intermediate layer should be used.

The humidity of the room must not exceed 60% RH and both boards and the room shall be heated to at least 18° C.

Glue-Down Installation

The preparation and quality of the subfloor, in combination with the correct type of glue, are crucial for a well functioning surface. The demands and recommendations given here must always be followed in conjunction with instructions from the supplier of glue and preparation materials.

Product

Joint system

Floating

Glue-down

Nail-down

Kährs ID 5/8" (15 mm)

Tongue & Groove

No

Yes

No

Kährs Supreme 3/4" (20 mm)

Tongue & Groove

No

Yes

No

Kährs Supreme 5/8" (15 mm)

Tongue & Groove

Yes

Yes

Yes

Kährs Supreme 5/8" (15 mm)

Woodloc® 5S

Yes

Yes

Yes

Kährs Original 5/8" (15 mm)

Woodloc® 5S

Yes

Yes

Yes

Kährs Original 5/8" (15 mm)

Woodloc®

Yes

Yes

Yes

Kährs Avanti Tres 1/2" (13 mm)

Woodloc® 5S

Yes

Yes

Yes

Kährs Avanti Canvas and Sonata 1/2" (12-13 mm)

Woodloc®

Yes

Yes

Yes

Kährs Spirit 3/8" (10 mm)

Woodloc® 

Yes

Yes

Yes

Kährs Linnea 1/4" (7 mm)

Woodloc®

Yes

Yes

No

Kährs Activity Floor 1.18" (30 mm)

Woodloc® 5S

Yes

No

No