u/Few_Elk668

Can I have some advice about tiling living room wall with concrete elevation tiles as I never tiles with this kind of tiles.

Tiles are 30x10cm, I’m going to use c2te adhesive, what trowel should I use 6 or 8mm or should I go with bigger one?

Can I tile over plasterboard after priming? The weigh of the tiles and adhesive will be around 30kg/m2, while buying tiles I was advised it’s ok but I’m a bit hesitant. Total weight of the tiles with adhesive will be around 220kg. Should I use backer board?

Can I mitre this tiles or I shouldn’t?

What gap should I leave from the ceiling and laminate flooring as I assume I can caulk it, 2mm will be too less?