Installation of stone shower tray on concrete floor All aspects of plumbing questions and answers, help, tips and information

[Aidan]

Hi all

I'm fitting a new downstairs bathroom suite and the floor is concrete, i am wanting to know the best way of installing the shower tray onto this and obviously to bed it up to allow for waste underneath.

Any tips appreciated as i'll be doing this sometime over the weekend!

[bobplum]

4x4 timber joists as to allow the trap to sit between tray and floor

[Aidan]

Thanks, and do i just sit the tray onto the timber or do i need to fix it somehow?

[chris_on_tour2002]

i would put 18mm marine plywood on top of the 4x4 then pva and bed the tray to that.