Plastering advice - large porcelain tiles

[One Day]

Id of personally plasterboarded it and tiled, so much easier than a rough coat and skim.
Cheers
Common craig

Best answer.
Nice one Common Craig

 

[Catty]

You've put me on the right track - thank you all! Yes, hindsight is a wonderful thing - plasterboard would certainly have been easier, quicker, less messy and saved a lot of grief all round!
All the best,
Catty

 

[Tile Fix Direct]

Suggest you board out with Orbry Tile Backer Board 2440x600x12.5mm on top of the bonding coat. Mechanically fix the boards using Spankers.
Orbry Board - https://www.tilefixdirect.com/product/Orbry-Insulated-Backer-Board
Orbry Spanker Expansion Fixing Dowels - https://www.tilefixdirect.com/product/Orbry-Spanker-Expansion-Fixing-Dowels

 

[Catty]

Thank you TF. Coincidentally, I have today been advised to consider mechanically fixing similar boards to the wall over the bonding. This will overcome the need to wait for the skim to dry and provide a stronger surface for the tiles, which are already on or just over the 20kg limit. Hmmm.... more to think about, but this seems like a good way to go. Thanks again - much appreciated.

Catty.