View the thread, titled "Plywood or Backer Board?" which is posted in America Tile Forum / Advice Board on UK Plumbers Forums.

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I'm about to tile my kitchen with 600mm x 600mm porcelain tiles. I am tiling onto a subfloor, which already has 22mm floorboards. When I previously tiled onto this floor I used 6mm Plywood, this was 12 years ago. I am planning in ripping up the old tiles and 6mm of ply. What Im now trying to understand, is whats best to use 6mm Hardie backer or 6mm Ply, Ply is less hassle. Any thoughts?

Thanks.
 
If there's any movement in the floor, tiles could crack no matter what you use. Backer board is the safer option since it won’t expand or contract like plywood with moisture.
 

Reply to the thread, titled "Plywood or Backer Board?" which is posted in America Tile Forum / Advice Board on Electricians Forums.

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