shower tray

Hi all I am fitting a stone shower try upstairs on to chipboard flooring the instructions say lay it on a wet mortar mix which is fair enough my question is the wet mortar mix will blow the chipboard and I presume might be uneven when it all dries out How can I seal the chipboard or can I...

Simple question - can anyone recommend a technique for lowering a heavy stone resin shower base into position onto a bed of mortar. The tray is to fit inside a cubicle , boarded on 3 walls . The opening is ~810mm wide and the tray 800mm giving me little room for maneuver and weighing in at...