We recently acquired a late 1980s bungalow with a very small en-suite shower room. I need to make the shower more suitable for my wife who has restricted mobility. I intend laying a low profile tray (760x760x40mm) on to the screed and use a pumped waste. The shower cubicle is plasterboard on metal stud work and, as you can see, two layers of tiles! The plasterboard was a hard white core - moisture resistant in 1980s? The new tray will fit snugly between the timber foot plates with only about 5mm each side- not enough room to get a backer board in. Will it suffice to board down to the rim of the tray, add a bead of silicone, then replace tiles. I’m not entirely happy with this idea so what are the alternatives.
Regards
Don