Best To Tile Onto?

[RickyLee53]

Hello.

I'm just about to tile my ensuite.
3 of the walls are old so I've taken them back to brick. 1 is new (Plasterboard)

The bricks are very uneven. The tiled I plan to use will be around 8mm thick. Brick effect 600 x 300. Floor to ceiling.

Do I Plasterboard. Plywood? Tile backer board? The remaining 3 walls.
And do I plaster or cover the Plasterboard wall.

Plasterboard is easiest and cheapest. But weakest. And in the shower area obviously worst.
Plywood probably next in cost and time and probably second best.
Third is tile backer as far as I can gather. Most expensive. Hardest to get the walls level. But is it worth doing?

The shower is going to be mosaics and no shower tray also.

Thanks for any help.

 

[Old Mod]

Wow! You're doing this yourself?
Massive undertaking for diy project, wet room install!
Are u practically minded?
Sorry don't wish to insult u, but all this coupled with 20mm mosaic, it's ambitious.
Oh just mosaic floor, that correct?
But if we can help, we will.

 

[Old Mod]

Well firstly don't skim the plasterboard!
It has more stability without plaster on it.
As long as your walls are 'tanked' correctly before tiling, moisture resistant plasterboard will suffice but a tile backer board would be more suitable. They can be dot and dabbed in same manor as plasterboard but better to studwork if you have room.

 

[Flintstone]

Plasterboard un plastered on the walls, tile backer board on the floor. Tank the wet area properly. That's most cost effective way to do it right.