plasterboard thickness

[David Goodier]

Thank's m8 for your honest opinion, its hard for me to get it across as I dont like pushing our gear always better for an outsider view........
tiler
..

I presume you mean the Durabase WP kit? The further info .pdf links on your web page don't work for me, and most of the info is about how to complete for a wetroom.
What do I do at the bottom of the membrane if fitting to a shower tray (to be tiled on 3 sides) and particularly the corners? I was assuming lay to the floor and silicone round the top edge of the tray (it is not tapered)?
TIA
David