ABWA

18. Semi circular and various shape showers including angled door gives better access:

Semi circular shower recesses with hob-less tiled floor. All copper and stainless steel trays have sheet-roofing membranes beneath tray and extended up the exterior side of walls to a height of 50mm and 100mm right-angled sides. Behind wall sheeting between studs and wall sheeting all trays recessed in studwork and brickwork.
Procedural photographs on page 80 of "The Bathroom Book".