Jodie1

I was going to use plasterboard because someone said that is the best surface.
My tiling experience is minimal, I did one of those week courses about a year and a half ago and nothing since (it hurt my arms!! all credit to you guys) so i'm doing this as a favour (if it all goes terribly wrong i won't feel so bad)
The size of the tiles are 150mm x 150mm.
And i hadn't got as far as planning for grout and adhesive. So i'm open to suggestions.