which comes first cubicle or tiles

[garygttdi]

Which should I do first tile the walls and then fit shower and cubicle to the tiles or do I fit the shower and screen first and tile to them. It’s a walk in shower 1700 mm longs against two std work walls, which have been plaster boarded. Both walls are good and solid with decent 4x3 studs. How do I ensure I do not get leaks via the tile seal between wall and basin?

 

[lancenotalot]

tiles first then cubicle,seal joints around base of tray and internal corners with sanitarty silicon seal.Before screwing cubicle in place run a bead of seal on uprights where they will contact wall.