Moisture and mould sensitive areas like kitchens and bathrooms are particularly prone to the negative influence of water on tile backer boards. Whereas traditional materials such as plywood and plasterboard are liable to break or disintegrate when wet, have confidence that your job will last with a board that stays strong and firm, no matter how damp it gets. Get the best protection against moisture damage when you use HardieBacker® board. It’s the floor tiling backerboard of choice wherever superior performance is required.

With its unique cement formulation, HardieBacker board has no loose aggregates or fillers, making it the strongest, most uniform composition.

Water resistant

HardieBacker board is impervious to water damage and won’t rot, swell, or warp like plywood, even in the wettest conditions.

Mould resistant

MouldBlock™ Technology protects your job from unseen mould growth behind walls. Our boards contain no paper facing, a food source for mould, or gypsum, which can disintegrate with continuous water exposure.

Fire resistant

Our board is non-combustible and carries an A1 fire rating.

Strongest on the market

Highest flexibility and up to three times the compressive strength of competitive boards. Holds up to 100 kg/m².

Easy to install

Lightweight and easy to cut with a single score and snap. Sink in screws easily, quickly and securely.

Better cuts with HardieBacker

Simple score and snap

Make 2-3 passes with a HardieBacker Score and Snap Knife or any utility knife. Place one hand and knee firmly along the score line and use the opposite hand to pull the board up to snap cleanly in two.

A strong foundation

Tighter seam lines make for a stronger underlay.

Less mess

Less mess and cleaning up when using the score and snap method.


No abrasive debris to scratch floors and sanitary fittings.

Less dust

Less dust with cleaner cuts.

Made Better

  • 90% Portland cement and sand
  • No loose aggregate or filler
  • Highest flexural strength and up to three times the compressive strength of competitive cement boards

Installs Better

  • Easy to cut to any size: just score and snap
  • Clean cuts allow edges to align tightly
  • Less dust and debris when cut

Performs Better

  • Unique cement formulation and MouldBlock Technology provides outstanding mould and moisture resistance
  • Excellent heavy tile adhesion

We really didn’t want to have to go back in a few years’ time to make repairs which would damage our bottom line and reputation. In that respect HardieBacker is really good value as it’s the only backing product which could give us the reassurance we were looking for

Jack Jago, Director of Norstone UK