Design your own home tool - Virtually create the home of your dreams!
How to cut HardieBacker
...with a single score and snap
Demonstration showing how to cut HardieBacker with a single score and snap
How to cut HardieBacker
...into small pieces
Demonstration showing how to cut HardieBacker into small pieces
HardieBacker resists moisture and stays strong

HardieBacker® 12mm Cement Board for Walls

​A 12mm thick cement backerboard for tile and stone, to be used as an alternative to plasterboard for tiling on walls.

HardieBacker 12mm is a water-resistant, cement backerboard for tile that fastens directly to the wooden frame of a wall. A good tile job begins with using the right materials, and when tiling onto a wall in a wet area, there are a few important things to consider.

  1. HardieBacker is impervious to water damage and will not rot, crack, or swell in the wettest conditions.
  2. It contains MouldBlock Technology™, an anti-mould additive that prevents unseen mould growth behind the walls. It contains no paper facing, a food source for mould or gypsum, which can disintegrate with continuous water exposure.
  3. Unlike plasterboard, HardieBacker has a unique cement formulation providing a strong bond to all ceramic or natural stone tiles for applied weights of up to 100kg/m².
  4. HardieBacker is non-combustible and carries an A1 fire rating. HardieBacker 12mm can also be used on the floor when additional height is needed, behind a boiler, or even behind a multi-fuel or log burning stove.

Click here to find out more about why you should use HardieBacker instead of plasterboard and plywood.

Water resistant
Mould resistant
Strongest on markest
Easy to install
Won’t rot, swell or warp when exposed to moisture.MouldBlock ™ Technology protects the job from dangerous mould growth.Can hold 100kg m² while conventional plasterboards claim to hold up to 32kg m².No primer required.



  • HardieBacker board sheet
  • HardieBacker board sheet
  • HardieBacker board sheet
© 2014 James Hardie Building Products Ltd.