what thickness ply

[lancenotalot]

I have removed some old tiles from a bathroom floor and they were laid in the original floor boards,I'm going to remove the boards as they are in a real mess and replace with wbp ply,what thickness would I need to used as I will be retiling it again.

 

[Softus]

No less than 18mm. Use either WBP or marine grade.

 

[gcol]

25mm is recommended. Don't forget to fit extra support (noggins) under the sheet edges.

 

[spiders]

I have a bathroom floor that need to be tiled, The floor is the existing 22mm t+g. Do i still need the additional ply on top?

spiders

 

[Softus]

I'm sorry, I didn't quite catch that - did you say "Please may I hijack this topic?" ?

 

[gcol]

I have a bathroom floor that need to be tiled, The floor is the existing 22mm t+g. Do i still need the additional ply on top?

Yep.