Hello, I need some collective knowledge. I am looking for a shower tray that is as flat as possible for an almost flush installation, with dimensions of 1 meter (3 feet 3 inches) wide and 1.30 meters (4 feet 3 inches) long. So far, I have only found the Kaldewei Conoflat. Maybe there are professionals here who can recommend other options? Over the weekend, I plan to check out Villeroy & Boch, Kermi, and others to see what else we can find.