Tiling onto timber or non-tongue and groove floorboards and chipboard

Timber and non-tongue and groove floorboards and chipboard are usually subject to large amounts of deflection/movement, and therefore cannot be tiled onto with even the most flexible of tile adhesives.

This means you will need to strengthen the substrate first with either a levelling compound, tile backer board or plywood. Use our guide below to learn how to tile onto timber floors.

Step-by-step guide

  1. Increase rigidity and strengthen the substrate

    You will first need to increase the rigidity of your substrate either by covering with a 10mm layer of weberfloor flex, 6mm tile backer board, or 15mm plywood. Use our guide on Strengthening a wooden floor for tiling to do this.

    Strengthening the substrate will decrease the amount of movement associated with timber and non-tongue and groove floorboards and chipboard.

  2. Fix tiles with a suitable flexible tile adhesive

    Fix tiles with a 3mm bed of improved flexible tile adhesive (S1) — such as weberset SPF or weberset rapid SPF — and leave joints of at least 3mm wide for grouting and make provisions for movement.

    If you are fixing tiles above 400mm by 400mm in size, or heavier tiles made of stone, quartz or terrazzo, you will require an ultra-flexible tile adhesive (S2) such as weberset pro lite – rapid.

  3. Finish with grout and silicone

    Leave tile adhesive to set and fill joints with a flexible floor tile grout such as weberjoint premium tile grout which is available in a range of 18 colours and contains PURE CLEAN anti-stain technology.

    Finish the job by sealing the perimeter movement joints with weberjoint silicone sealant – available in clear and also colour-matched to all 18 colours of our premium grout.

Contact us

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