Advice on small bathroom floor. Ply or not to ply

[NWB Tiling]

Merry Christmas to all,

JUst after a bit of advice.

I have a very small bathroom floor to tile 2m2. The property is a 3 year old new build with a T&G chipboard subfloor.
The floor is sound and doesn't move.

My question is, for this small area is is necessary to ply - or can i use baL 2 part rapid set flexible and flex grout. This has been done in my own new bild bathroom (not by me) and all is well.

Welcome your thoughts.

Cheers

Nige

 

[Alberta Stone]

Glue and screw the plywood into place, prime, then use spf to stick the tiles.