bathroom job any advice, tips, tricks appreciated

[MAK_Tiling]

Bathrrom getting ripoed out everything except the bath with two internal walls and two external.
Plan is to rip out old tiles,take wallpaper off plus any plaster left behind it and board all walls with marmox multiboards and seal joints on boards around bath area with their waterproof tape.

What size boards would you recomend since i dont know what the studs are centred at? E.g marmox 10mm centred every 300mm and 12.5mm is at 400mm.is this a big deal or should i have studs already bought incase of need to sister studs together to match the size but also to get the studs plumb and flat as possible??? =S

Solid walls dot and dab plus mechanical fixings.the floor looks like some sort of fake tiles maybe stuck down with floorboards underneath. Whats best to use on floor in this situation marmox or a cement board or a decoupling membrane like dural yellow one for ease of mind of no cracks tranfering through??.

Bathroom.wals 15sqm and floor about 5 and tiles are ceramic wall and floor
Walss 25 x 50cm
Floor - 45 x 45cm

Looking forward to hearing on any advice or tips i should know or methods i should consider. Many thanks
M

 

[Old Mod]

The NMP and GIFA are structural flooring, tongue and groove construction boards, and as long as there is adequate joist spacing, yes, that’s a finished substrate. They’re inert, and won’t change shape at all. Although can be difficult to source because it’s still not used enough.
There are NO anti deflection products as such.
Some help, but none are designed for that purpose, only lateral movement.
The deflection should be removed by correctly prepping the substrate.
For example, adding noggins between joists, and renewing what goes on the joist.
That’s when options start to creep in.

 

[MAK_Tiling]

@3_fall your a tiling genius mate
Thanks a miliion for the info all makes sense now and am more confidwnt with what i now know.

 

[Old Mod]

You’ll come to realise @MAK_Tiling that this is basic knowledge that you must learn I’m afraid.
No genius in it at all, sorry haha
But thanks for the sentiment mate.
It’s appreciated, truly.