Ply or backer board for bathroom floor?

[NHW]

Currently reaching the flooring stage in my bathroom and I know that I can't tile directly onto the floorboards.

But if i want to tile the floor what would i best be putting down before i tile?

The floorboards are relatively level with maybe 1mm variance here n there.

Just wondering what spec/size/thickness of board I should use.

The area is only around 2.2m x 2.5m so would rather choose a better waterproof option considering my m² is quite small and don't mind spending abit more.

Any advice is much appreciated. Thanks

 

[motorbiking]

10-12mm foam filled backer and large tiles to minimise movement. Looks good btw.

 

[NHW]

10-12mm foam filled backer and large tiles to minimise movement. Looks good btw.

ahhhh thank you.

i tried looking for foam backers but for some reason keep coming across concrete ones but i think i managed to find some:

https://www.selcobw.com/jackoboard-plano-insulated-tile-backer-board-1200-x-600-x-12mm

Do these seem right? Thanks for your reply btw

 

[motorbiking]

Wickes sell it too

Tile Backing Boards | Concrete Backer Board | Wickes

Ensure a sturdy base for your tiling with our tile backing boards. Trade quality, perfect for home & DIY projects. Fast Click & Collect available in store.

www.wickes.co.uk

 

[NHW]

ahhhh nice thank you.

just saw on wickes that they also sell a 1200 x 800 x 12mm (currently on sale)

https://www.wickes.co.uk/NoMorePly-12mm-Fibre-Cement-Construction-Board-1200-x-800mm/p/225437

which is a cement board. works out cheaper per m2 or shall i still with that one you recommended? thanks again

 

[NHW]

also with these boards, which is the best way to fix them to the floorboards if they are to go on the floor and not the walls. ive seen dot n dab used, then also the method using the big circular washers etc. Thanks

 

[motorbiking]

yep you need some washers, but PVA also works as do regular screws if you are careful.

 

[foxhole]

Recently bought 8x4 cement boards £20 each .